Academic literature on the topic 'Seedling water'
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Journal articles on the topic "Seedling water"
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Struve, Daniel, Petra Sternberg, Nick Drunasky, Kurt Bresko, and Rico Gonzalez. "Growth and Water Use Characteristics of Six Eastern North American Oak (Quercus) Species and the Implications for Urban Forestry." Arboriculture & Urban Forestry 32, no. 5 (2006): 202–13. http://dx.doi.org/10.48044/jauf.2006.026.
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Seedling growth and water use of six North American oak species were studied in a series of four experiments to determine inter- and intraspecies water use characteristics. Xeric-site adapted species (chestnut oak, Q. prinus [L.] and black oak, Q. velutina [Lamb.]) had slower growth (height and dry weight accumulation and lower shoot:root ratios) than mesic-site adapted species (bur oak, Quercus macrocarpus [Michx.]; pin oak, Q. palustris [Muenchh.], northern red oak, Q. rubra [L]; and Shumard oak, Q. shumardii [Buckl.]). Principal component analysis (a statistical technique used to identify correlated variables) using 11 variables found that seedling water use loaded positively with seedling growth factors (taller seedlings tended to have higher dry weights and greater leaf and root areas and used more water than shorter seedlings, which tended to have lower dry weights, smaller leaf, and root areas) in the first principal component. However, in the third experiment, seedling growth factors loaded negatively with seedling water use for Q. prinus. Tall Q. prinus seedlings tended to use less water than short seedlings. However, other measures of water use (g water cm −1height and cm −2leaf and root area) loaded negatively on the first principal component. Correlations between seedling heights and seedling waters use were significant and positive, but great within-species and within half-sib family differences in height-adjusted water use (g water cm −1height) were found. By plotting height-adjusted water use against seedling height, efficient and inefficient water use seedlings could be identified. Inefficient water use seedlings were shorter and had higher water use cm −1height than efficient water use seedlings. Inefficient water use seedlings were described as having a xeric-water use habit, whereas tall seedlings had a mesic-water use habit. Potentially, height-adjusted water use could be used as a method for selecting individual oak seedlings better adapted to stressful urban planting sites.
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Ross, Darrell W., and C. Wayne Berisford. "Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) Response to Water and Nutrient Status of Loblolly Pine." Forest Science 36, no. 3 (1990): 719–33. http://dx.doi.org/10.1093/forestscience/36.3.719.
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Abstract Loblolly pine (Pinus taeda L.) seedlings were grown in a greenhouse under conditions of variable water and nutrient availability and then exposed to natural populations of the Nantucket pine tip moth (Rhyacionia frustrana [Comstock]). Seedling growth was directly related to water and nutrient availability. Tip moth oviposition was highest on the most vigorous seedlings, even after accounting for differences in seedling size among treatments. The ratios of mean number of pupae per seedling to mean number of eggs per seedling for each treatment indicated percent tip moth survival may have been lower on vigorous seedlings than on stressed seedlings, but differences may have been due to factors other than the suitability of seedlings as larval food. Larger numbers of heavier pupae developed on vigorous seedlings than on stressed seedlings. Pupal weights were directly related to total nitrogen concentration and inversely related to total phenolic and condensed tannin concentrations of pine shoot tissues. Total phenolic and condensed tannin concentrations were inversely related to seedling growth. These results suggest that tip moth populations will increase rapidly following silvicultural treatments that increase water and nutrients available to young loblolly pines. For. Sci. 36(3):719-733.
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Song, Yong Xian, Juan Li Ma, and Xian Jin Zhang. "Design of Water and Fertilizer Measurement and Control System for Seedlings Soil Based on Wireless Sensor Networks." Applied Mechanics and Materials 241-244 (December 2012): 86–91. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.86.
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Water and fertilizer are two important factors in seedlings growth and development, the reasonable management of water and fertilizer can play a greater growth potential for seedling, and blind management of water and Fertilizer not only is harmful for seedling growth, but also will lead to the water resource waste and environmental pollution. In order to precisely determine the seedlings fertilizer demand, this paper presents a method seedlings fertilizer and water measurement and control system based on wireless sensor network, the system can realize automatic deployment of information acquisition node, data self-organization transfer, namely, wireless communication, and can accurately detect information of soil water and fertilizer and identify water and Fertilizer on the best demand of seedlings growth stages for different seedlings, different regions, different period of climate and seedling growth status, so the best water and fertilizer control is achieved in seedling cultivation. This system were introduced and analyzed from the hardware structure, software structure and so on in this paper, and it has the advantages of low power consumption, low cost, good robustness, flexibility and so on. The experiment results shown that the system is practical and efficient, which can be applied in farmland, and nursery area.
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Samuelson, Lisa J., and John R. Seiler. "Interactive Role of Elevated CO2, Nutrient Limitations, and Water Stress in the Growth Responses of Red Spruce Seedlings." Forest Science 39, no. 2 (1993): 348–58. http://dx.doi.org/10.1093/forestscience/39.2.348.
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Abstract Red spruce (Picea rubens Sarg.) seedlings were grown from seed for 5 mo in ambient (362 ppm) or elevated (711 ppm) CO2 to determine the potential effect of an increase in global CO2 concentration on seedling growth and establishment. CO2 exposure treatments were crossed with two levels of soil fertility and water stress treatments to determine if seedling dry weight, size, and fixed growth responses to elevated CO2 depended on nutrient and water supply. Seedling dry weight and size responses to elevated CO2 at 5 mo did not depend on nutrient and water supply. Seedlings grown in both soil fertility treatments and water stress treatments responded similarly to CO2 treatment. Water stress and CO2 treatments did have an interactive influence on the fixed growth potential of the terminal leader. Leaf weight, leaf area, and height of the terminal leader of water-stressed seedlings were greater in seedlings exposed to elevated CO2 during budset than seedlings exposed to ambient CO2. Total new fixed growth (lateral plus terminal) and total terminal fixed growth (leaf plus stem) were greater in seedlings that formed shoot primordia in elevated CO2 than in ambient CO2. Red spruce seedlings grown in elevated CO2 for 5 mo had greater stem diameter, height, branching density, leaf weight, root weight, stem weight, total weight, and mean relative growth rate (RGR) from 3 to 5 mo than seedlings grown in ambient CO2. Red spruce seedling responses to elevated CO2 suggest that seedling establishment in natural environments may be enhanced when ambient CO2 concentrations rise even if water and nutrient availabilities are limited. FOR. SCI. 39(2):348-358.
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Abdelmalik, Abdelmalik M. "Enhanced Growth and Drought Resistance in Seedlings of Acacia tortilis due to Inoculation of Arbuscular Mycorrhiza Fungi and Bacillus subtilis." International Journal of Agriculture and Biology 26, no. 06 (2021): 750–60. http://dx.doi.org/10.17957/ijab/15.1891.
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A shade house experiment was conducted in Saudi Arabia to evaluate the impact of a mixture of three arbuscular mycorrhiza fungi (AMF) namely Funneliformis mosseae, Rhizophagus intraradices and Claroideoglomus etunicatum, a bacterium Bacillus subtilis, and their combinations on the growth and drought resistance potential of Acacia torilis seedlings under moderate and water deficit-stress. Thus, inoculants treatments (AMF, Bacillus subtilis, AMF+Bacillus, and control) and several watering intervals (1, 2, 3 and 4 weeks) were applied. Inoculation of AMF and Bacillus to A. tortilis seedlings found effective in terms of improved seedling growth. AMF and combined inoculation resulted in a larger shoot (shoot fresh and dry weights, seedling height, leaf number, leaf area) and root development (root fresh and dry weights, root length, root surface area, and root volume) as compared to the non-inoculated seedlings. Single inoculants of B. subtilis, showed better improvement in 1- and 2-week watering intervals compared to the control. Inoculated seedlings showed lower proline accumulation than non-inoculated seedlings, and thus improved seedling resistance to water deficit-stress. Mycorrhizal and mixed inoculation enhanced the amount of chlorophyll in the seedling’s leaves. Furthermore, seedlings with AMF and co-inoculants showed better drought tolerance even at 3- and 4-week watering intervals. © 2021 Friends Science Publishers
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Selahvarzi, Bahareh, and Seyed Mohsen Hosseini. "Survival, growth and mineral accumulation in ash Fraxinus excelsior L. seedlings irrigated with water treatment effluent." Folia Forestalia Polonica, Series A - Forestry 54(3) (September 1, 2012): 159–68. https://doi.org/10.5281/zenodo.30841.
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A pot experiment was carried out to study the effect of irrigation with water treatment effluent on the growth and chemical constituents of ash seedlings Fraxinus excelsior L. according as soil chemical properties. This research was conducted at the site near to the Eastern Tehran water treatment plant. Ash seedling were planted in pots in three score rows After measuring their primary dimensions, the seedlings were irrigated with water treatment effluent, well water and water mix (50% well water + 50% water treatment effluent) for the period of April–October 2010. Three replications were considered for each of the score rows. During the entire period of observations, survival and growth parameters of three random seedling samples from each treatment were measured once in two months until the end of the growth season (October 2010). Observations included seedling height, collar diameter and survival. Application of water treatment effluent, well water and water mix indicated same seedling survival but water treatment effluent was superior than other treatments in improving seedling growth parameters (height, collar diameter and biomass dry weight) as well as it brought about the highest concentration of N, P, K and Mg in plant parts, when compared with mix water and well water treatments.
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Svenson, Sven E. "Shading and DCPTA Interactively Influence Shoot Growth of Hypoestes." HortScience 30, no. 4 (1995): 854D—854. http://dx.doi.org/10.21273/hortsci.30.4.854d.
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The objective of this study was to determine if shading and DCPTA application interactively influence seedling emergence and shoot growth of Hypoestes phyllostachya Bak. seedlings. Hypoestes `Carmine Red' seeds were soaked for 6 h in distilled water, and then soaked 6 h in solutions containing' 10 mg DCPTA/liter (30 mM) and 0.1% Tween-80, 0.1% Tween-80, or distilled water. Date of seedling emergence was recorded after sowing (0.5 cm) in 9-cm (460 ml) pots filled with 440 ml of a 5 pine bark: 4 Florida sedge peat: 1 sand medium. Forty pots from each of the three seed-soak treatments were grown under 30%, 63%, or 84% shading, provided by saran-type shadecloth, using natural photoperiods (completely randomized design). Shoot heights and dry weights were recorded 75 days after sowing. Neither shading nor DCPTA influenced total seedling emergence or seedling emergence rate (time to 50% emergence). Under 30% shading, seedlings from DCPTA-treated seeds were taller and had more shoot dry weight than seedlings from surfactant- or water-treated-seeds; however, DCPTA did not influence seedling height or shoot weight under 63% or 84% shading.
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Zhang, Bingchao, Xiangyu Wen, Yongshuang Wen, et al. "Design and Testing of a Closed Multi-Channel Air-Blowing Seedling Pick-Up Device for an Automatic Vegetable Transplanter." Agriculture 14, no. 10 (2024): 1688. http://dx.doi.org/10.3390/agriculture14101688.
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In this study, a closed multi-channel air-blowing plug seedling pick-up device and a combined plug tray were designed to address the issues of complex structure, high seedling damage rates and low pick-up efficiency in fully automated vegetable transplanter systems. The device operates by sealing the plug seedlings in a seedling cup, where compressed air is channeled into the sealed cavity through multiple passages during the seedling pick-up process. The upper surface of the seedling plug is subjected to uniform force, overcoming the friction and adhesion between the plug seedlings and the tray. This process presses the seedlings into the guide tube, completing the pick-up operation. A mechanical model for the plug seedlings was developed, and the kinetics of the pick-up process were analyzed. The multi-channel high-pressure airflow was simulated and evaluated, identifying three key parameters affecting seedling pick-up performance: water content of the seedling plug, air pressure during pick-up, and air-blowing duration. Using these factors as variables, and with seedling pick-up rate and substrate loss rate as evaluation indicators, single-factor experiments and a three-factor, three-level orthogonal experiment were conducted. The experiments’ results showed that the best seedling pick-up performance was achieved when the water content of the plug was 20%, the air pressure was 0.3 MPa, and the air-blowing time was 30 ms. Under these conditions, the seedling pick-up success rate was 97.22%, and the substrate loss rate was 10.46%.
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Grauke, L. J., and Richard D. O'Barr. "Initial Survival of Pecan Grafts on Seedling Rootstock of Pecan, Water Hickory, and their Interspecific Hybrid." HortTechnology 6, no. 1 (1996): 45–48. http://dx.doi.org/10.21273/horttech.6.1.45.
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`Oconee' pecan [Carya illinoinensis (Wangenh.) K. Koch] scions were grafted on seedling rootstock from nine open-pollinated seedstocks. Rootstock included three seedstocks each of pecan, water hickory [C. aquatica (F. Michx.) Nutt.], and their interspecific hybrid, Carya × lecontei (Little). Pecan seedlings had the largest basal diameters and water hickory seedlings the smallest. Seedlings of `Elliott' and `Curtis' seedstocks were larger than seedlings from `Moore' seedstock. Pecan and C. × lecontei seedlings were grafted more successfully than water hickory. Graft success varied among seedstocks of pecan and C. × lecontei Foliage color of seedlings, possibly indicative of iron nutritional status, was influenced by species; pecan seedling leaves were darker green than those of water hickory seedlings, but similar to C. × lecontei leaves. `Oconee' scion leaves were darker green on pecan rootstock than when grafted on C. × lecontei rootstock.
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Kerr, Kelly L., Nicole Zenes, Anna T. Trugman, and William R. L. Anderegg. "Testing the effects of species interactions and water limitation on tree seedling biomass allocation and physiology." Tree Physiology 41, no. 8 (2021): 1323–35. http://dx.doi.org/10.1093/treephys/tpab005.
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Abstract Species interactions mediate tree responses to water limitation because competition and/or facilitation alter plant physiology and growth. However, because it is difficult to isolate the effects of plant–plant interactions and water limitation from other environmental factors, the mechanisms underlying tree physiology and growth in coexisting plants under drought are poorly understood. We investigated how species interactions and water limitation impact the physiology and growth of trembling aspen (Populus tremuloides), narrowleaf cottonwood (Populus angustifolia) and ponderosa pine (Pinus ponderosa) seedlings in a controlled environment growth chamber, using aspen as a focal species. Seedlings were grown in pots alone or with a con- or hetero-specific seedling, and were subjected to a water limitation treatment. Growth, water status and physiological traits were measured before, during and after the treatment. Under well-watered conditions, the presence of another seedling affected growth or biomass allocation in all species, but did not impact the physiological traits we measured. Under water limitation, the presence of a competing seedling had a marginal impact on seedling growth and physiological traits in all species. Throughout the study, the magnitude and direction of seedling responses were complex and often species-specific. Our study serves as an important step toward testing how species’ interactions modify physiological responses and growth in well-watered and water-limited periods.
Dissertations / Theses on the topic "Seedling water"
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Stomph, Tjeerd Jan. "Seedling establishment in pearl millet (Pennisetum glaucum (L.) R.Br.) : the influence of genotype, physiological seed quality, soil temperature and soil water." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276632.
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Yang, Dongsheng. "The response of two eucalypt subspecies to water stress and fertilizer at early seedling stage." Thesis, Canberra, ACT : The Australian National University, 1987. http://hdl.handle.net/1885/140223.
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Pamuk, Gunnar Sven. "Controlling water dynamics in Scots pine (Pinus sylvestris L.) seeds before and during seedling emergence /." Umeå : Dept. of Silviculture, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s305.pdf.
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Hosseini, Mohammad Khajeh. "The response of soybean seeds to the stresses of semi-arid environments during germination and early seedling growth." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324912.
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Reduced water availability and salinity are two major environmental factors influencing crop establishment in semi-arid environments. Therefore the effect of reduced water availability using polyethylene glycol (PEG) 4000 solutions and of salinity (NaCl) on the germination of six soybean cultivars was examined. Cultivars differed in their response to reduced water availability and salinity and in their ability to recover from the stresses. A large increase in germination during a recovery period at 0 MPa following water stress suggested that PEG was not toxic whilst the failure of seeds to recover from high salinity revealed the toxic effects of NaCl. At the same water potential, germination in saline conditions was higher than that in PEG and the rate of water uptake by individual seeds was more rapid in NaCl solutions than in PEG. The most plausible explanation for the greater water uptake and germination in NaCl is that seeds accumulated salts which lowered their osmotic potential. The effects of NaCl on seedling growth were much greater when experiments were conducted in a hydroponic system compared with a paper towel method. However, analysis of the solutions soaking the paper towels revealed that 4.25<I> </I>mMolal Ca2<sup>+</sup> was available to the seeds in this system in saline conditions. This may have reduced Na<sup>+</sup> uptake or provided a protective effect against Na<sup>+</sup> toxicity. Germination (40%) was possible at a tissue Na<sup>+</sup> concentration in the embryonic axis of 9.3mg g-1 FW whilst seedling growth was completely inhibited at a tissue Na<sup>+</sup> concentration of 6.1 mg g<sup>-1 </sup>FW. Germination at higher tissue Na<sup>+</sup> concentrations was associated with higher K<sup>+</sup>+Ca2<sup>+</sup> concentrations, suggesting that these ions may protect the seeds in the pregermination phase against salinity. A reduction in seed vigour due to ageing resulted in reduced germination under saline conditions compared to the germination of unaged seeds, but there was no significant interaction between salinity and seed ageing. However, unaged seeds showed a greater increase in germination after transfer to 0 MPa than did the aged seeds. Since both the site of ageing and the toxic effect of NaCl is the cell membrane, there may be additive effects of NaCl toxicity on cell membrane in aged seeds.
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Haigh, Ian Mitchell. "The effect of temperature and soil water on Fusarium seedling blight of winter wheat and its effective control by fungicide seed treatments." Thesis, Open University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398010.
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Groninger, John William. "Stand dynamics and gas exchange in loblolly pine and hardwood seedling stands : impact of elevated carbon dioxide, water stress and nutrient status /." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-08272007-163923/.
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Lui, Jandislau José [UNESP]. "Doses de resíduo sólido orgânico urbano no substrato, associado a regimes de irrigação, na formação de mudas de eucalipto." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/105300.
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lui_jj_dr_jabo.pdf: 909592 bytes, checksum: 9868994b0210fa5ac801ff0d8f87e500 (MD5)<br>Funep<br>O objetivo deste trabalho foi avaliar doses de resíduo sólido orgânico urbano no substrato, associado a regimes de irrigação, na formação de mudas de eucalipto. A pesquisa foi desenvolvida no Câmpus da UNESP, de Jaboticabal, localizado a 21º15’22” de latitude sul, 48º18’58”de longitude oeste. Foram utilizados nove substratos, sendo dois latosolos, um vermelho eutroférrico argiloso e outro vermelho distrófico, seis misturas de latossolos com resíduo sólido orgânico urbano dessecado e triturado, não compostado e, este último, puro. Utilizou-se irrigação com quatro regimes (50%, 75%, 100% e 130% dos valores diários determinados) e a avaliação feita em cinco épocas (15, 29, 41, 53 e 79 dias após a semeadura). Foram avaliadas variáveis biométricas da cultura, variáveis químicas dos substratos e regimes de irrigação. Os resultados obtidos indicaram que o Resíduo Sólido Orgânico Urbano (R.S.O.U.) constitui-se fonte de nutrientes para as plantas e material corretivo com atributos químicos semelhantes a adubo mineral e calcário. Para os substratos constituídos com latosolo vermelho eutroférrico argiloso, doses com até 40% de R.S.O.U. não exerceram influência negativa nas plantas. Nos substratos constituídos com latosolo vermelho distrófico, a dosagem máxima para que o R.S.O.U. não influencie na vida das mudas, foi de 20%. Os melhores resultados para as plantas ocorreram o regime de irrigação de 75% do valor diário determinado. A relação C/N foi crescente com o aumento da porcentagem de R.S.O.U. Ao final da pesquisa a maioria dos substratos estavam na faixa entre 1/7,7 a 1/14,7.<br>The deposition of trash in landfill, controlled landfills, and in its greatest part, in open dumps, pollute the soil and take spaces that could be used for other purposes. In relation to the organic trash, it has been used composted as manure in the agriculture, however, there are many inconveniences caused by this technique, among them contamination, a large used area, the long time of the process and the high cost. The aim of this work was to evaluate the influence of non composted urban organic solid residue dosages, in the substrate, associated to irrigation ways in the formation of Eucalyptus seedlings. The research was developed at the UNESP Campus, in Jaboticabal - SP, Brazil, located at 21º 15’ 22” South latitude, 48º 18’58” West longitude. Nine substrates were used, two latosols, one red clayey Eutroferric and another dystrophic red , six mixtures of latosols with dried and ground urban organic solid residue, non composted and one with pure residue. The irrigation was based on four levels, (50%, 75%, 100% and 130% of the evapotranspiration daily values). The plants behavior evaluation was done in five ages (15, 29, 41, 53 and 79 days after the sowing). It was evaluated the biometric variables of the culture and chemical variables of the substrates. The obtained results indicated that: the Urban Organic Solid Residue (U.O.S.R.) is a source of nutrients for the plants and corrective material, with chemical attributes similar to mineral manure and limestone. For the substrates constituted by red clayey eutroferric latosol, dosages up to 40% of U.O.S.R. did not have a negative influence on the plants. In the substrates constituted by dystrophic red latosol, the maximum dosage, so that the U.O.S.R. did not influence negatively on the lives of the plants, was 20%. The best results for the plants behavior occurred at the irrigation... (Complete abstract, click electronic access below)
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Paiva, Auricleia Sarmento de. "Disponibilidade hídrica na germinação de sementes e no crescimento de plântulas da leguminosa forrageira Macrotyloma axillare (E. Mey) Verdc. cv. Java /." Jaboticabal : [s.n.], 2007. http://hdl.handle.net/11449/105113.
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Resumo: Objetivou-se avaliar características fisiológicas da leguminosa forrageira tropical, Macrotyloma axillare cv. Java (macrotiloma) submetida a diferentes potenciais hídricos e determinar a qualidade fisiológica de três lotes de sementes dessa cultivar. Determinou-se a pureza física dos lotes, o peso de mil sementes, o teste padrão de germinação (TPG) e o índice de velocidade de germinação (IVG). Os seguintes testes de vigor foram realizados: primeira contagem do TPG, condutividade elétrica e envelhecimento acelerado. Avaliou-se o efeito da disponibilidade hídrica do substrato sobre a germinação de sementes com o uso de soluções de Polietileno Glicol (PEG 6000) e a germinação e o crescimento inicial das plântulas sob diferentes disponibilidades hídricas no solo (60, 45 e 35% da capacidade de campo). Diferenças no potencial fisiológico inicial de sementes escarificadas puderam ser observadas pelo teste de germinação. Os testes de primeira contagem e IVG não foram sensíveis para detectar diferenças no potencial fisiológico das sementes dos três lotes estudados. O envelhecimento acelerado das sementes escarificadas pode ser realizado a 41º C por um período mínimo de 72 horas ou a 45º C durante 48 horas. O teste de condutividade elétrica mostrou-se adequado para diferenciar os lotes de sementes escarificadas, a partir de 48 horas de embebição. O lote 3 foi classificado como o lote de menor vigor. Houve redução progressiva e significativa da porcentagem de germinação e do IVG quando o potencial hídrico do substrato decresceu de 0,0 até -0,6 MPa e decréscimo na germinação e no IVG quando a disponibilidade hídrica no solo decresceu de 60% para 45 e 35% da capacidade de campo. Todas as características da parte aérea das plântulas foram prejudicadas pela redução da disponibilidade hídrica do solo, notadamente, os parâmetros altura de plântula,... (Resumo completo, clicar acesso eletrônico abaixo)<br>Abstract: The objective of this research was to evaluate physiological characteres of the tropical forage legume, Macrotyloma axillare cv. Java (perennial horse gram) submitted to different water potentials and to determine the physiological quality of three seed lots of this cultivar. The physical purity, 1000 seeds weight, standard germination test (SGT) and speed of germination index (SGI) were evaluated. The following vigour tests were performed: first count of SGT; electrical conductivity and accelerated aging. The effect of substratum water availability was studied using polyethylene glicol solutions (PEG 6000) on seed germination and soil with three levels of water contents (60, 45 and 35% of field capacity) on germination and early growth of seedlings. Differences on initial physiological potential of scarified seeds could be observed by the germination test. First count of germination and SGI were not sensible to detect differences in seed physiological potential of these three lots. The accelerated aging of scarified seeds can be performed at 41ºC during at least 72 hours or at 45ºC for 48 hours. The electrical conductivity test was adequate to differentiate lots of scarified seeds after 48 hours of imbibition. The seed lot number three was classified as the lowest vigour lot of perennial horse gram seeds. There was progressive and significant decrease of germination percentage and of SGI when the substratum water potential decreased from zero to -0,6 MPa and reduction of germination percentage and SGI when the soil water availability decreased from 60% to 45 and 35% of field capacity. All seedlings shoot characters were hastened by the decrease of soil water availability, mainly the parameters: seedling height, fresh mass and area of leaves... (Complete abstract, click electronic access below)<br>Orientador: Teresinha de Jesus Deléo Rodrigues<br>Coorientador: Antônio João Cancian<br>Banca: Paola Pedroso Vantini<br>Banca: Ana Regina Pimentel de Almeida<br>Banca: Izabel Cristina Leite<br>Banca: Maria Lidia Stipp Paterniani<br>Doutor
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Lui, Jandislau José. "Doses de resíduo sólido orgânico urbano no substrato, associado a regimes de irrigação, na formação de mudas de eucalipto /." Jaboticabal : [s.n.], 2009. http://hdl.handle.net/11449/105300.
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Resumo: O objetivo deste trabalho foi avaliar doses de resíduo sólido orgânico urbano no substrato, associado a regimes de irrigação, na formação de mudas de eucalipto. A pesquisa foi desenvolvida no Câmpus da UNESP, de Jaboticabal, localizado a 21º15'22" de latitude sul, 48º18'58"de longitude oeste. Foram utilizados nove substratos, sendo dois latosolos, um vermelho eutroférrico argiloso e outro vermelho distrófico, seis misturas de latossolos com resíduo sólido orgânico urbano dessecado e triturado, não compostado e, este último, puro. Utilizou-se irrigação com quatro regimes (50%, 75%, 100% e 130% dos valores diários determinados) e a avaliação feita em cinco épocas (15, 29, 41, 53 e 79 dias após a semeadura). Foram avaliadas variáveis biométricas da cultura, variáveis químicas dos substratos e regimes de irrigação. Os resultados obtidos indicaram que o Resíduo Sólido Orgânico Urbano (R.S.O.U.) constitui-se fonte de nutrientes para as plantas e material corretivo com atributos químicos semelhantes a adubo mineral e calcário. Para os substratos constituídos com latosolo vermelho eutroférrico argiloso, doses com até 40% de R.S.O.U. não exerceram influência negativa nas plantas. Nos substratos constituídos com latosolo vermelho distrófico, a dosagem máxima para que o R.S.O.U. não influencie na vida das mudas, foi de 20%. Os melhores resultados para as plantas ocorreram o regime de irrigação de 75% do valor diário determinado. A relação C/N foi crescente com o aumento da porcentagem de R.S.O.U. Ao final da pesquisa a maioria dos substratos estavam na faixa entre 1/7,7 a 1/14,7.<br>Abstract: The deposition of trash in landfill, controlled landfills, and in its greatest part, in open dumps, pollute the soil and take spaces that could be used for other purposes. In relation to the organic trash, it has been used composted as manure in the agriculture, however, there are many inconveniences caused by this technique, among them contamination, a large used area, the long time of the process and the high cost. The aim of this work was to evaluate the influence of non composted urban organic solid residue dosages, in the substrate, associated to irrigation ways in the formation of Eucalyptus seedlings. The research was developed at the UNESP Campus, in Jaboticabal - SP, Brazil, located at 21º 15' 22" South latitude, 48º 18'58" West longitude. Nine substrates were used, two latosols, one red clayey Eutroferric and another dystrophic red , six mixtures of latosols with dried and ground urban organic solid residue, non composted and one with pure residue. The irrigation was based on four levels, (50%, 75%, 100% and 130% of the evapotranspiration daily values). The plants behavior evaluation was done in five ages (15, 29, 41, 53 and 79 days after the sowing). It was evaluated the biometric variables of the culture and chemical variables of the substrates. The obtained results indicated that: the Urban Organic Solid Residue (U.O.S.R.) is a source of nutrients for the plants and corrective material, with chemical attributes similar to mineral manure and limestone. For the substrates constituted by red clayey eutroferric latosol, dosages up to 40% of U.O.S.R. did not have a negative influence on the plants. In the substrates constituted by dystrophic red latosol, the maximum dosage, so that the U.O.S.R. did not influence negatively on the lives of the plants, was 20%. The best results for the plants behavior occurred at the irrigation... (Complete abstract, click electronic access below)<br>Orientador: João Antonio Galbiatti<br>Coorientador: Jairo Augusto Campos de Araújo<br>Banca: Raimundo Leite Cruz<br>Banca: Maurício José Borges<br>Banca: Edemo João Fernandes<br>Banca: Teresa Cristina Tarlé Pissara<br>Doutor
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Paiva, Auricleia Sarmento de [UNESP]. "Disponibilidade hídrica na germinação de sementes e no crescimento de plântulas da leguminosa forrageira Macrotyloma axillare (E. Mey) Verdc. cv. Java." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/105113.
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paiva_as_dr_jabo.pdf: 412706 bytes, checksum: a3044c478c4a39b6825b47ace1e1b633 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Objetivou-se avaliar características fisiológicas da leguminosa forrageira tropical, Macrotyloma axillare cv. Java (macrotiloma) submetida a diferentes potenciais hídricos e determinar a qualidade fisiológica de três lotes de sementes dessa cultivar. Determinou-se a pureza física dos lotes, o peso de mil sementes, o teste padrão de germinação (TPG) e o índice de velocidade de germinação (IVG). Os seguintes testes de vigor foram realizados: primeira contagem do TPG, condutividade elétrica e envelhecimento acelerado. Avaliou-se o efeito da disponibilidade hídrica do substrato sobre a germinação de sementes com o uso de soluções de Polietileno Glicol (PEG 6000) e a germinação e o crescimento inicial das plântulas sob diferentes disponibilidades hídricas no solo (60, 45 e 35% da capacidade de campo). Diferenças no potencial fisiológico inicial de sementes escarificadas puderam ser observadas pelo teste de germinação. Os testes de primeira contagem e IVG não foram sensíveis para detectar diferenças no potencial fisiológico das sementes dos três lotes estudados. O envelhecimento acelerado das sementes escarificadas pode ser realizado a 41º C por um período mínimo de 72 horas ou a 45º C durante 48 horas. O teste de condutividade elétrica mostrou-se adequado para diferenciar os lotes de sementes escarificadas, a partir de 48 horas de embebição. O lote 3 foi classificado como o lote de menor vigor. Houve redução progressiva e significativa da porcentagem de germinação e do IVG quando o potencial hídrico do substrato decresceu de 0,0 até -0,6 MPa e decréscimo na germinação e no IVG quando a disponibilidade hídrica no solo decresceu de 60% para 45 e 35% da capacidade de campo. Todas as características da parte aérea das plântulas foram prejudicadas pela redução da disponibilidade hídrica do solo, notadamente, os parâmetros altura de plântula,...<br>The objective of this research was to evaluate physiological characteres of the tropical forage legume, Macrotyloma axillare cv. Java (perennial horse gram) submitted to different water potentials and to determine the physiological quality of three seed lots of this cultivar. The physical purity, 1000 seeds weight, standard germination test (SGT) and speed of germination index (SGI) were evaluated. The following vigour tests were performed: first count of SGT; electrical conductivity and accelerated aging. The effect of substratum water availability was studied using polyethylene glicol solutions (PEG 6000) on seed germination and soil with three levels of water contents (60, 45 and 35% of field capacity) on germination and early growth of seedlings. Differences on initial physiological potential of scarified seeds could be observed by the germination test. First count of germination and SGI were not sensible to detect differences in seed physiological potential of these three lots. The accelerated aging of scarified seeds can be performed at 41ºC during at least 72 hours or at 45ºC for 48 hours. The electrical conductivity test was adequate to differentiate lots of scarified seeds after 48 hours of imbibition. The seed lot number three was classified as the lowest vigour lot of perennial horse gram seeds. There was progressive and significant decrease of germination percentage and of SGI when the substratum water potential decreased from zero to -0,6 MPa and reduction of germination percentage and SGI when the soil water availability decreased from 60% to 45 and 35% of field capacity. All seedlings shoot characters were hastened by the decrease of soil water availability, mainly the parameters: seedling height, fresh mass and area of leaves... (Complete abstract, click electronic access below)
Books on the topic "Seedling water"
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Bob, Gordon. Orchid seedling care: With special emphasis on water quality. Laid-Back Publications, 1991.
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Miller, Brad. Soil temperature effects on water relations of Picea mariana seedlings. National Library of Canada, 1991.
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Czapowskyj, Miroslaw M. Growth and nutrient status of black spruce seedlings as affected by water table depth. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1986.
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Imo, Moses Owade. Nutrient uptake efficiency, growth allocation, and water relations of mesquite seedlings at varying fertilization schedules. National Library of Canada = Bibliothèque nationale du Canada, 1992.
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Heidmann, L. J. Effect of prolonged drought on water relations of ponderosa pine seedlings growing in basalt and sedimentary soils. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1992.
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Zidar, Kara. Water potentials and root morphology as a measure of potential damage in frost-heaved birch seedlings (Betula papyrifera). Laurentian University, Department of Biology, 1987.
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Dat, James Frederick. Growth, water relations and nutrient uptake of bean seedlings under different air saturation vapour pressure deficit and nutrition regimes. National Library of Canada, 1994.
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Kost, David A. Leaf conductance, transpiration rates, and leaf abscission of water-stressed northern red oak seedlings inoculated with various ectomycorrhizal fungi. s.n, 1985.
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James, Robert L. An evaluation of the efficacy of hot water-chemical treatments to clean styroblock containers, Champion Timberlands Nursery, Plains, Montana. U.S. Dept. of Agriculture, Forest Service, Northern Region, 1989.
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Hunt, Gary A. Effect of misting on water loss, growth, and mycorrhizae in Engelmann spruce and Douglas-fir. Forestry Canada, 1990.
Find full textBook chapters on the topic "Seedling water"
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Kapoor, Riti Thapar. "Effect of Calcium Silicate Supplementation on the Growth of Trigonella Foenum-Graecum L. Variety Hisar Sonali Under Saline Conditions." In Proceedings of the Conference BioSangam 2022: Emerging Trends in Biotechnology (BIOSANGAM 2022). Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-020-6_21.
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AbstractSalinity is a major abiotic stress which decreases crop productivity. Salt stress also causes osmotic, water, ionic and oxidative stresses. Plants exposure to salt can check their growth by reduction in water and nutrient uptake, osmotic imbalance and cytotoxicity incited by sodium and chloride ions. Present study deals with the impact of salt on germination, growth and physiological components of fenugreek and its alleviation by the application of calcium silicate. The salt stress reduced fenugreek germination and growth but supplementation of calcium silicate to salt stressed seedlings mitigated deleterious impacts of salinity. Various parameters like germination, seedling length, biomass, pigment and protein contents of fenugreek seedlings were significantly improved with calcium silicate under salt stress. Maximum reduction 53.3% in protein amount was recorded in fenugreek seedlings treated with NaCl (10 mM) over control. Significant increase in total antioxidant content in fenugreek seedlings was observed with calcium silicate as it showed the following order: Ca2SiO4 > NaCl + Ca2SiO4 > NaCl > Control. Hence, application of calcium silicate can be useful for the fenugreek plants growing under saline conditions.
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Li, Xuemei, and Lihong Zhang. "SA and PEG-Induced Priming for Water Stress Tolerance in Rice Seedling." In Advances in Intelligent and Soft Computing. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27537-1_104.
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Gatica-Arias, Andrés, and César Vargas-Segura. "Chemical Mutagenesis of Coffee Seeds (Coffea arabica L. var. Catuaí) Using NaN3." In Mutation Breeding in Coffee with Special Reference to Leaf Rust. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-67273-0_13.
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AbstractCoffee (Coffea arabica L.) is one of the most important crops in the world and one of the main export products in several developing countries. Coffee is a perennial crop threatened by multiple, serious diseases and pests. Induced mutagenesis of seeds is widely used for increasing the genetic diversity and improvement of annual seed crops and could equally be applied to Arabica coffee breeding and genetic studies. Here we describe protocols to induce genetic variability in Arabica coffee seeds through mutagenesis using sodium azide (NaN3). Methods for NaN3 chemical toxicity testing and bulk irradiation are described. Briefly, the coffee seeds were immersed for 4, 8 and 12 hours in a NaN3 solution at different concentrations (0, 25, 50, 75, and 100mM). Two controls were used: one with distilled water and the other with the phosphate buffer (KH2PO4). Effects of the chemical mutagen on seed germination, seedling height, and root length were evaluated. As the concentration of applied NaN3 increased, the germination, seedling height, and root length decreased. Eight hours exposure was determined as an adequate immersion time. The LD50 values for NaN3 were between 50–75 mM. Our results indicate that NaN3 is an effective mutagen for Arabica coffee seeds and can be applied to coffee breeding and to study gene function in coffee.
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Quilloy, Fergie Ann, Benedick Labaco, Carlos Casal, and Shalabh Dixit. "Crop Establishment in Direct-Seeded Rice: Traits, Physiology, and Genetics." In Rice Improvement. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66530-2_6.
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AbstractThe changing climate and water availability strongly affect the current state of agricultural production. While the global temperature rises, the occurrence of extreme climatic conditions becomes erratic. This current scenario has driven the development of rice varieties and cultivation practices that require less water and favor mechanization. Although puddled transplanted rice has been more widely used in the past, direct seeding has been gaining popularity in recent years, especially due to its water- and labor-saving features. This technique allows full crop establishment from seeds that were directly sown in the field, thus avoiding puddling, transplanting, and maintaining standing water. Consequently, it offers promising positive environmental effects including decreasing the release of greenhouse gases and increasing water-use efficiency. Historically, rice varieties bred for transplanting are also used in direct seeding, which limits the maximum yield potential of field trials. The success of direct seeding relies strongly on the development of rice varieties with robust crop establishment. Anaerobic germination, seed longevity, and early seedling vigor are the key traits required to achieve this. This chapter expounds on the physiology, molecular mechanisms, genetics, and relevance of the enumerated traits for direct seeding. A brief discussion of breeding for rice varieties with improved germination under direct seeding is also provided.
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Wen, Shuangxi, Peng Li, Yaya Zhao, Jing Ran, Juanjuan Zhang, and Mi Xiao. "Effects of multi-wall carbon nanotubes on seed germination and seedling growth of Water lotus." In Advances in Petrochemical Engineering and Green Development. CRC Press, 2022. http://dx.doi.org/10.1201/9781003318569-6.
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Ma, Chao, Haoyun Hu, Lihua Jia, Ce Zhang, and Fei Li. "Effects of Brackish Water Salinity on the Soil Salt and Water Movements and the Cotton Seedling Growth Under Film Hole Irrigation." In Sustainable Development of Water Resources and Hydraulic Engineering in China. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-61630-8_3.
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Herr, D. G., and L. C. Duchesne. "Jack Pine (Pinus banksiana) Seedling Emergence is Affected by Organic Horizon Removal, Ashes, Soil, Water and Shade." In Boreal Forests and Global Change. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-0942-2_16.
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Shigalova, T. V., O. B. Chivkunova, and M. N. Merzlyak. "Effect of Water Stress on Fatty Acids of Chloroplasts in Saratovskaya 55 and Lutescence 1848 Var. Wheat Seedling." In Biological Role of Plant Lipids. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-1303-8_63.
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Velarde Allazo, Edwar Andrés, Jimmy Vasquez Cori, Reysa Nuñez del Prado, and Gerby Rondan Sanabria. "IoT-Based Control Technology for Rice Seedling Cultivation in Greenhouses with a Focus on Water Resource Optimization and Crop Resilience Under Thermal Stress Conditions." In Earth and Environmental Sciences Library. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-61956-4_8.
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McLeod, Kenneth W., Lisa A. Donovan, and Nancy J. Stumpff. "Responses of Woody Seedlings to Elevated Flood Water Temperatures." In The Ecology and Management of Wetlands. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8378-9_36.
Full textConference papers on the topic "Seedling water"
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Azis, Yunia Mulyani, Moechammad Sarosa, Septriandi Wirayoga, and Hadiwiyatno. "Onion Seedling Growth Optimization in Wates Village with Genetic Algorithm for Periodic Watering." In 2024 International Conference on Advanced Information Scientific Development (ICAISD). IEEE, 2024. https://doi.org/10.1109/icaisd63055.2024.10894858.
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DUMINS, Karlis, Toms STALS, and Dagnija LAZDINA. "FOREST REGENERATION QUALITY ASSESSMENT BY ASTA SYSTEM." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.178.
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In Latvia one third of the total forest area is regenerated by planting tree seedlings and therefore it is important to choose the appropriate soil preparation method and the right type of regeneration material for each forest type. Usually the success of afforestation is evaluated by how high is the average seedling survival rate and growth parameters like height, annual increment, diameter at breast height while the location of the seedling is disregarded. This may be of great importance since in such stands the environmental conditions typically are not entirely homogenous. Micro topography differences impact seedling growth, because it modifies water regime, temperature, micronutrient availability, sun radiation and other factors. Therefore, aim of this work is to improve monitoring methods and determine the most efficient soil preparation and seedling preparation combination to improve the quality of forest regeneration. That could be done using ASTA documentation system originally developed to show seedling and mound location and density in planting area during mechanic planting. But it also allows to link the precise location of the seedling and growing conditions with its growing rate and survival and therefore it is easier to exclude seedlings that are affected by other factors than those that you are interested in, so you can gain more representative results. This also could be used in forest management. When using ASTA system it is also possible to display how different tree disease are distributed in the stand, if they have spread eventually or localized only in some parts of the stand, also it can be used for browsing and other tree damage monitoring in the stand. In conclusion: in harsh environmental conditions on unprepared forest soil and soil prepared in furrows made by disc trench larger seedlings show better survival rate. Survival of seedlings is significantly impacted by micro topography, whereas mounded micro sites equalize local environmental conditions that reduce impact of micro topography.
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GRYBAUSKIENE, Vilda, and Gitana VYČIENĖ. "EVAPOTRANSPIRATION-BASED IRRIGATION SCHEDULING FOR PICEA ABIES (SPRUCE) SEEDLINGS." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.062.
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The water balance of agro ecological systems is a key parameter for most physical and physiological processes with the system soil–crop–climate. Therefore it is of great importance to calculate the water budget parameters in the required scale. The field study was conducted in the period of 2002–2005. Seedlings were planted in Irrigation engineering department experimental fields at the Lithuanian University of Agriculture. Seedlings were grown under standard nursery cultural practices until being transplanted into new fields in mid April 2002 and 2004. The research site contains evaporators and 8 lysimeters in which spruce seedlings were grown and studied. Lysimeters amount 42 m2 and 30 m2. At 2002, field No.1 was irrigated 8 times, irrigation norm was 250 m3 ha-1 and seedling got 2000 m3 ha-1 water. Field No.2 was irrigated 6 times, irrigation norm – 1500 m3 ha-1. In 2003 fields No. 1 and No. 2 were irrigated 4 times and seedlings got 1000 m3 ha-1 water. At 2004, field No.1 was irrigated 8 times, irrigation norm was 250 m3 ha-1 and seedling got 2000 m3 ha-1 water. Field No.2 was irrigated 6 irrigation norm – 1500 m3 ha-1. The total evapotranspiration of the first year seedlings planted in the field No.1 in 2004 made up 323 mm. The total evapotranspiration of the seedlings growing in variant No. 2 was 307 mm in 2004 and it is by 16 mm less as compared to variant No.1.
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McGrath, J. Mitchell, Vinay Hiremath, Paul Galewski, and Safa Elzohary. "TRANSCRIPTIONS OF SEEDLINGS GERMINATING IN WATER, HYDROGEN PEROXIDE, AND SALT FOR DISCOVERY OF SEEDLING VIGOR GENES AND BIOCHEMICAL PATHWAYS." In 37th Biennial Meeting of American Society of Sugarbeet Technologist. ASSBT, 2013. http://dx.doi.org/10.5274/assbt.2013.28.
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Dumacheva, Elena, Elena USOL'CEVA, Polina MAKSIMOVA, et al. "INTRODUCTION ISSUES: INFLUENCE OF SALINITY ON GAS EXCHANGE PROCESSES OF SEEDLINGS HEDYSARUM GRANDIFLORUM PALL." In Multifunctional adaptive fodder production. Federal Williams Research Center of Forage Production and Agroecology, 2024. http://dx.doi.org/10.33814/mak-2023-32-80-104-110.
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The large-flowered sweetvetch (Hedysarum grandiflorum Pall.) is a perennial beautiful-flowering plant with a narrow ecological amplitude, promising for introduction and cultivation. Under controlled conditions using the LI-6800 instrument, LI-COR, USA, the dynamics of indicators of photosynthesis intensity, transpiration and accompanying physiological processes related to gas exchange in H. grandiflorum seedling leaves under different light levels (1500, 1000, 500, 200, 100, 50, 0 µM/m2/s) in saline conditions was studied. It has been established that photosynthetic apparatus of H. grandiflorum seedlings adapts well enough to saline conditions and significant photosynthesis suppression by 17.4 % is observed only at PAR level of 300 µM/m²/s¹. At the same time, a significant decrease in the rate of water evaporation by the surface of cotyledon leaves under the influence of salinity conditions — by 36.5–54.3 % is observed. The obtained data indicate a potentially high adaptive capacity of H. grandiflorum seedlings due to self-regulation of gas exchange processes.
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Yildirim, E., M. Ekinci, M. Yüce, M. Turan, and S. Ors. "EFFECTS OF BIOSTIMULANT TREATMENTS ON AMINO ACID CONTENT OF TOMATO SEEDLING UNDER WATER DEFICIT." In International conference on agriculture. The International Institute of Knowledge Management, 2022. http://dx.doi.org/10.17501/26827018.2022.7101.
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Soare, Rodica. "THE EFFECT OF SALICYLIC PRE-TREATMENT ON GERMINATION AND SEEDLING GROWTH OF CHICKPEA (CICER ARIETINUM L) UNDER WATER SHORTAGE CONDITIONS." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2015. http://dx.doi.org/10.5593/sgem2015/b61/s25.082.
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Abass Hussein, Haifaa. "Studying the effect of some natural materials on the germination and growth of chickpea plant (cricer arietinum L.)." In X INTERNATIONAL CONGRESS OF PURE AND APPLIED TECHNOLOGICAL SCIENCES. Rimar Academy, 2023. http://dx.doi.org/10.47832/minarcongress10-4.
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A laboratory experiment was carried out in one of the laboratories of the horticulture department, college of agriculture, Al-qadisiya university, during the spring season of the year 2023, with the aim using environmentally friendly natural materials instead of chemical fertilizers and studying their effect as fertilizer for chickpea plant (cricer arietinum L). Acomplete randomized design (CRD) was used with three replications and one factors, as the treatments included (T1 control distilled water, T2 banana peels fertilizer, T3 eggs shell fertilizer and T4 mixture of two fertilizers. Results showed that the treatment of the plant with mixture natural fertilizer gave agood result compared to the control treatment 100% ,while it gave the lowest germination rate when the control treatment 91.6 % without significant differences.The results were also the highest in the number of branching of the root of the seedling and in the same treatment 18.6 branch ,while the comparison treatment gave the lowest number of branch and reached 14.3 branch without significant differences .the length of the root stock and feather ,its dry weight and the strength of the seedling also had the highest rates when theT4 treatment reached 12.1 cm ,4cm ,0.299 mg .0.322 mg and 1.7000 respectively ,with significant differnces ,while the rates were lower when the control (T1 treatment )the comparison an ounted to 5.5 cm ,2.3 cm 0.142 mg 0.133 mg and 726.0 resectively
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Bojovic, Biljana, Milica Kanjevac, and Dragana Jakovljevic. "EFEKAT PRAJMIRANJA SEMENA PŠENICE (Triticum aestivum L.) NA SADRŽAJ FOTOSINTETSKIH PIGMENATA I UKUPNIH SOLUBILNIH PROTEINA." In XXVI savetovanje o biotehnologiji sa međunarodnim učešćem. University of Kragujevac, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.401b.
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In this paper, effect of different priming treatments in the pregerminative phase of wheat seeds (Triticum aestivum L.) on the concentration of photosynthetic pigments and total soluble proteins in the leaf of seedling was investigated. Seeds were treated with solutions of the phytohormones gibberellin and auxin (hormone priming), salts of potassium and magnesium (halo priming), ascorbic acid and hydrogen peroxide (chemo priming) and water (hydro priming). Based on the obtained results, it was determined that the content of pigments and total soluble proteins can be increased by applying the appropriate priming treatment. The most favorable effect on the examined parameters was observed in the treatment with potassium nitrate.
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AL-Rukabi, M. N., and V. I. Leunov. "Evaluation of tomato hybrids with different level of ripe rate under hydroponic conditions (fitopyramide)." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-49.
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Greenhouse tomatoes are divided into early, medium and late-maturing. The days from seedling germination to the first harvest are taken into account. Tomato has a huge potential for heterosis in terms of precocity, overall yield, signs of resistance and uniformity. The preferred agricultural method is hydroponics, which allows you to grow plants without using soil, only using mineral nutrient solutions in water. The cultivation of tomato plants on the " Fitopyramida " will allow to sell their products in the periods with the highest realized prices. An experiment on variety testing of 11 tomato hybrids of different product groups that differ in precocity allowed us to select the most adapted to the conditions of the " Fitopyramida " technology, including the indeterminate beef Ruddy ball F1, cherry hybrids Elf F1 and orange-fruited cherry Magic harp F1. the determinant hybrid Captain F1 showed Good results.
Reports on the topic "Seedling water"
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Mi, Zetian, Yanfa Yan, Dunwei Wang, et al. HydroGEN Seedling: Monolithically Integrated Thin Film/Silicon Tandem Photoelectrodes for High-Efficiency and Stable Photoelectrochemical Water Splitting. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1974610.
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Swan, Megan, and Christopher Calvo. Vegetation trends in pinyon-juniper woodlands in Southern Colorado Plateau Network parks. National Park Service, 2025. https://doi.org/10.36967/2312771.
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The Southern Colorado Plateau Network has monitored vegetation and soils in pinyon-juniper woodlands at Bandelier National Monument (BAND), Grand Canyon National Park (GRCA), and Mesa Verde National Park (MEVE) since 2007. This report analyzes 15 years of data on site characteristics and changes in selected indicators. Overall, MEVE and GRCA exhibited similar conditions in Pinyon-Juniper woodlands, with sparsely vegetated understories and dense canopies dominated by Utah juniper (Juniperus osteosperma) and two-needle pinyon pine (Pinus edulis). In contrast, BAND had a more diverse understory with a greater variety of forb and shrub species, and a less dense overstory primarily of one-seed juniper (Juniperus monosperma). Seedling and sapling presence was noted at all sites but was least common at BAND. Soils differed in texture, development, and depth across parks. Aggregate stability was generally moderate across all sites. While plant species richness was generally low, it was highest at BAND. Nonnative plants were uncommon except for cheatgrass (Bromus tectorum), which had up to 40% cover at some BAND plots. Vegetation analysis revealed a pattern of stability and slight positive changes over the 15-year monitoring period. Species richness increased at all sites, and cover of shrubs and cactus/succulents rose at three out of four locations. However, exotic cheatgrass (Bromus tectorum) also increased significantly at BAND—averaging about 2% per year—while it slightly decreased at GRCA (< 1% annually). Climate variables influenced plant trends, with increasing water stress negatively impacting vegetation cover, particularly perennial grasses. Although tree mortality was generally low, it was highest for pinyons at GRCA. Limiting disturbance in pinyon-juniper woodlands to prevent the introduction of invasive grasses is recommended; stand thinning in old-growth woodlands designed to potentially increase drought resilience requires further study and is not recommended.
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Boyle, Maxwell, and Elizabeth Rico. Terrestrial vegetation monitoring at Timucuan Ecological and Historic Preserve: 2019 data summary—Version 2.0. National Park Service, 2022. http://dx.doi.org/10.36967/nrds-2290196.
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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and it is currently conducted on 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation. 2019 marks the first year of conducting this monitoring effort on four SECN parks, including Timucuan Ecological and Historic Preserve (TIMU). A total of 23 vegetation plots were established in the park in May and June. Data collected in each plot include species richness across multiple spatial scales, species-specific cover and constancy, species-specific woody stem seedling/sapling counts and adult tree (greater than 10 centimeters [3.9 inches (in)]) diameter at breast height (DBH), overall tree health, landform, soil, observed disturbance, and woody biomass (i.e., fuel load) estimates. This report summarizes the baseline (year 1) terrestrial vegetation data collected at Timucuan Ecological and Historic Preserve in 2019. Data were stratified across three dominant broadly defined habitats within the park (Coastal Plain Nonalluvial Wetlands, Coastal Plain Open Uplands and Woodlands, and Maritime Upland Forests and Shrublands) and three land parcels (Cedar Point, Theodore Roosevelt, and Thomas Creek). Noteworthy findings include: A total of 157 vascular plant taxa (species or lower) were observed across 23 vegetation plots, including nine species not previously known from the park. Three plots were located in the footprint of the Yellow Bluff Fire, and were sampled only two weeks following the fire event. Muscadine (Muscadinia rotundifolia), cat greenbrier (Smilax glauca), water oak (Quercus nigra), and swamp tupelo (Nyssa biflora) were the most frequently encountered species in Coastal Plain Nonalluvial Wetland habitat; saw palmetto (Serenoa repens), slash pine (Pinus elliottii), and gallberry (Ilex glabra) were the most frequently encountered species in Coastal Plain Open Upland and Woodland habitat; and Darlington oak (Quercus hemisphaerica), Spanish moss (Tillandsia usenoides), and red bay (Persea borbonia) were the most frequently encountered species in Maritime Upland Forests and Shrublands. There were no exotic species of the Florida Exotic Pest Plant Council list of invasive plants (FLEPPC 2020) observed on any of these plots. Both red bay and swamp bay (Persea palustris) were largely absent from the tree stratum in these plots; however, they were present (occasionally in high abundance) in the seedling and sapling strata across all habitat types. Buckthorn bully (Sideroxylon lycioides)—listed as Endangered in the state of Florida by the Florida Department of Agriculture and Consumer Services (FDACS 2020)—was observed in three Maritime Upland Forest and Shrubland plots. The tree strata in each broadly defined habitat were dominated by the following species: Coastal Plain Nonalluvial Wetlands-loblolly bay (Gordonia lasianthus) Coastal Plain Open Uplands and Woodlands-longleaf pine (Pinus palustris) Maritime Upland Forests and Shrublands-oaks (Quercus sp.) Most stems within the tree strata exhibited healthy vigor and only moderate dieback across all habitat types. However, there was a large amount of standing dead trees in plots within Maritime Upland Forests and Shrublands. Downed woody biomass (fuel loads) were highest in the Cedar Point and Thomas Creek land parcels.
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Boyle, Maxwell, and Elizabeth Rico. Terrestrial vegetation monitoring at Timucuan Ecological and Historic Preserve: 2019 data summary. National Park Service, 2021. https://doi.org/10.36967/2286623.
Full textAbstract:
The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and it is currently conducted on 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation. 2019 marks the first year of conducting this monitoring effort on four SECN parks, including Timucuan Ecological and Historic Preserve (TIMU). A total of 23 vegetation plots were established in the park in May and June. Data collected in each plot include species richness across multiple spatial scales, species-specific cover and constancy, species-specific woody stem seedling/sapling counts and adult tree (greater than 10 centimeters [3.9 inches (in)]) diameter at breast height (DBH), overall tree health, landform, soil, observed disturbance, and woody biomass (i.e., fuel load) estimates. This report summarizes the baseline (year 1) terrestrial vegetation data collected at Timucuan Ecological and Historic Preserve in 2019. Data were stratified across three dominant broadly defined habitats within the park (Coastal Plain Nonalluvial Wetlands, Coastal Plain Open Uplands and Woodlands, and Maritime Upland Forests and Shrublands) and three land parcels (Cedar Point, Theodore Roosevelt, and Thomas Creek). Noteworthy findings include: A total of 157 vascular plant taxa (species or lower) were observed across 23 vegetation plots, including nine species not previously known from the park. Three plots were located in the footprint of the Yellow Bluff Fire, and were sampled only two weeks following the fire event. Muscadine (Muscadinia rotundifolia), cat greenbrier (Smilax glauca), water oak (Quercus nigra), and swamp tupelo (Nyssa biflora) were the most frequently encountered species in Coastal Plain Nonalluvial Wetland habitat; saw palmetto (Serenoa repens), slash pine (Pinus elliottii), and gallberry (Ilex glabra) were the most frequently encountered species in Coastal Plain Open Upland and Woodland habitat; and Darlington oak (Quercus hemisphaerica), Spanish moss (Tillandsia usenoides), and red bay (Persea borbonia) were the most frequently encountered species in Maritime Upland Forests and Shrublands. There were no exotic species of the Florida Exotic Pest Plant Council list of invasive plants (FLEPPC 2020) observed on any of these plots. Both red bay and swamp bay (Persea palustris) were largely absent from the tree stratum in these plots; however, they were present (occasionally in high abundance) in the seedling and sapling strata across all habitat types. Buckthorn bully (Sideroxylon lycioides)—listed as Endangered in the state of Florida by the Florida Department of Agriculture and Consumer Services (FDACS 2020)—was observed in three Maritime Upland Forest and Shrubland plots. The tree strata in each broadly defined habitat were dominated by the following species: Coastal Plain Nonalluvial Wetlands-loblolly bay (Gordonia lasianthus) Coastal Plain Open Uplands and Woodlands-longleaf pine (Pinus palustris) Maritime Upland Forests and Shrublands-oaks (Quercus sp.) Most stems within the tree strata exhibited healthy vigor and only moderate dieback across all habitat types. However, there was a large amount of standing dead trees in plots within Maritime Upland Forests and Shrublands. Downed woody biomass (fuel loads) were highest in the Cedar Point and Thomas Creek land parcels.
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Livensperger, Carolyn, Rebecca Weissinger, Luke Gommermann, and Alice Wondrak Biel. Riparian monitoring of wadeable streams on the Fremont River, Capitol Reef National Park, 2009?2021. National Park Service, 2023. http://dx.doi.org/10.36967/2301391.
Full textAbstract:
The goal of Northern Colorado Plateau Network (NCPN) riparian monitoring is to deter-mine long-term trends in hydrologic, geomorphic, and vegetative properties of wadeable streams in the context of changes in other ecological drivers, stressors, and processes. This information is intended to provide early warning of resource degradation and determine natural variability of wadeable streams. This report summarizes NCPN monitoring of the Fremont River in Capitol Reef National Park (NP) from water years 2009 to 2021. The focus of this report is to (1) examine patterns in water availability at one monitoring reach from 2010 to 2021, and (2) present geomorphology and vegetation data from four reaches monitored from 2009 to 2021. Vegetation sampling and geomorphology surveys were completed at varying intervals throughout the time period; this report looks at changes within single reaches and establishes a baseline for future comparisons. There are four monitoring reaches established on the Fremont River: (1) F-01, approximately 2.5 kilometers upstream of a knickpoint (sharp change in channel slope) and associated waterfall that emerged following construction of State Highway 24 in 1964, (2) F-07, in a large oxbow that was cut off due to the highway construction, (3) F-04, approximately 1.5 kilometers downstream of the knickpoint, and (4) F-14, approximately 4.8 kilometers downstream of the knickpoint. Geomorphic and vegetation surveys took place at all reaches. Hydrologic monitoring occurred only at F-01. From 2001 to 2021, the entire range of flows recorded at a gaging station on the Fremont River upstream of the park near Bicknell, Utah, decreased, with the steepest decreases occurring in the highest flow percentiles. Continuous hydrologic monitoring at reach F-01 in the park from 2010 to 2021 showed perennial flows in the Fremont River, with lower flows during the irrigation season (April 1?October 31). The irrigation season was also characterized by greater evapotranspiration, which may be exacerbated in the future due to higher air temperatures. Lower observed inputs and greater evapotranspiration suggest the Fremont River is at risk for progressively lower flows over time. While overbank flows occurred infrequently in the monitoring reach, inhibiting cottonwood recruitment, groundwater levels remained shallow enough to support mature cottonwood trees. Protecting spring snowmelt flows of 94 cfs (the average annual maximum 14-day rolling mean at reach F-01), or greater should maintain the current wetland vegetated zone. Maintaining the hydrologic record was challenging due to high-magnitude flood events and turbid flows; the park should consider a gaging station for an accurate discharge record. Geomorphic surveys showed net sediment deposition at reaches F-01 and F-14 in the channels, banks, and floodplains from 2009 to 2021, with more deposition occurring earlier in the study period. A large flood event in 2013 resulted in high flows and deposition of close to one meter at F-01. Only localized erosion occurred, and thalweg surveys showed that stream channels were either stable or increasing in elevation. Reach F-07, the abandoned oxbow, exhibited little geomorphic change over the study period. Riparian vegetation was characteristic of a Fremont cottonwood woodland, with canopy closure up to 30% and a mixed understory of shrubs and herbaceous species. Obligate wetland vegetation cover of 5%?10% was present at reaches F-01, F-04, and F-14. Reach F-07, in the oxbow, has transitioned to an upland system, with little to no canopy cover and no obligate wetland species. While mature cottonwoods were present in reaches F-01, F-04, and F-14, there was limited evidence of seedlings or saplings graduating into larger size classes. Cottonwood seedlings are primarily resprouts from beaver-browsed trees, although one seedling recruitment event was observed in 2014, following high flows in late 2013. Protecting some cottonwoods with chicken wire may help protect the larger size classes and maintain a mixed-age woodland. Exotic plant species cover was less than 10% in reaches F-01, F-04, and F-14. Efforts to control Russian olive (Eleagnus angustifolia) along the Fremont River appear to have been successful in these reaches. In reach F-07, exotic plant cover ranged from 9% to 25%, with notable spikes in Russian thistle (Salsola tragus) and cheatgrass (Bromus tectorum) in 2010 and 2011, respectively.
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Czapowskyj, Miroslaw M., Robert V. Rourke, Walter J. Grant, and Walter J. Grant. Growth and nutrient status of black spruce seedlings as affected by water table depth. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station, 1986. http://dx.doi.org/10.2737/ne-rp-591.
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Czapowskyj, Miroslaw M., Robert V. Rourke, Walter J. Grant, and Walter J. Grant. Growth and nutrient status of black spruce seedlings as affected by water table depth. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station, 1986. http://dx.doi.org/10.2737/ne-rp-591.
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Seginer, Ido, Daniel H. Willits, Michael Raviv, and Mary M. Peet. Transpirational Cooling of Greenhouse Crops. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7573072.bard.
Full textAbstract:
Background Transplanting vegetable seedlings to final spacing in the greenhouse is common practice. At the time of transplanting, the transpiring leaf area is a small fraction of the ground area and its cooling effect is rather limited. A preliminary modeling study suggested that if water supply from root to canopy is not limiting, a sparse crop could maintain about the same canopy temperature as a mature crop, at the expense of a considerably higher transpiration flux per leaf (and root) area. The objectives of this project were (1) to test the predictions of the model, (2) to select suitable cooling methods, and (3) to compare the drought resistance of differently prepared seedlings. Procedure Plants were grown in several configurations in high heat load environments, which were moderated by various environmental control methods. The difference between the three experimental locations was mainly in terms of scale, age of plants, and environmental control. Young potted plants were tested for a few days in small growth chambers at Technion and Newe Ya'ar. At NCSU, tomato plants of different ages and planting densities were compared over a whole growing season under conditions similar to commercial greenhouses. Results Effect of spacing: Densely spaced plants transpired less per plant and more per unit ground area than sparsely spaced plants. The canopy temperature of the densely spaced plants was lower. Air temperature was lower and humidity higher in the compartments with the densely spaced plants. The difference between species is mainly in the canopy-to-air Bowen ratio, which is positive for pepper and negative for tomato. Effect of cooling methods: Ventilation and evaporative pad cooling were found to be effective and synergitic. Air mixing turned out to be very ineffective, indicating that the canopy-to-air transfer coefficient is not the limiting factor in the ventilation process. Shading and misting, both affecting the leaf temperature directly, proved to be very effective canopy cooling methods. However, in view of their side effects, they should only be considered as emergency measures. On-line measures of stress: Chlorophyll fluorescence was shown to accurately predict photosynthesis. This is potentially useful as a rapid, non-contact way of assessing canopy heat stress. Normalized canopy temperature and transpiration rate were shown to correlate with water stress. Drought resistance of seedlings: Comparison between normal seedlings and partially defoliated ones, all subjected to prolonged drought, indicated that removing about half of the lowermost leaves prior to transplanting, may facilitate adjustment to the more stressful conditions in the greenhouse. Implications The results of this experimental study may lead to: (1) An improved model for a sparse canopy in a greenhouse. (2) A better ventilation design procedure utilizing improved estimates of the evaporation coefficient for different species and plant configurations. (3) A test for the stress resistance of transplants.
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Boyle, M. Terrestrial vegetation monitoring at Ocmulgee Mounds National Historical Park: 2021 data summary. National Park Service, 2023. http://dx.doi.org/10.36967/2299748.
Full textAbstract:
The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the NPS Inventory and Monitoring Program. The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and monitoring is conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation. 2021 marks the first year of conducting this monitoring effort at Ocmulgee Mounds National Historical Park (OCMU). Eight vegetation plots were established throughout the park in early May. Data collected in each plot included species richness across multiple spatial scales, species-specific cover and constancy, species-specific woody stem seedling/sapling counts and adult tree (greater than 10 centimeters [3.9 inches {in}]) diameter at breast height (DBH), overall tree health, landform, soil, observed disturbance, and woody biomass (i.e., fuel load) estimates. This report summarizes the baseline (year 1) terrestrial vegetation data collected at Ocmulgee Mounds National Historical Park in 2021. Data were stratified across two dominant broadly defined habitats within the park, Coastal Plain Alluvial Wetlands and Coastal Plain Upland Forests. Noteworthy findings include: 142 vascular plant taxa (species or lower) were observed across eight vegetation plots, including 15 species not previously documented within the park. The most frequently encountered species in each broadly defined habitat included: Coastal Plain Alluvial Wetlands: Chinese privet (Ligustrum sinense), Chinese tallow (Triadica sebifera), Japanese honeysuckle (Lonicera japonica), eastern poison ivy (Toxicodendron radicans var. radicans), and smallspike false nettle (Boehmeria cylindrica). Coastal Plain Upland Forests: sweetgum (Liquidambar styraciflua), muscadine (Muscadinia rotundifolia var. rotundifolia), winged elm (Ulmus alata), water oak (Quercus nigra), loblolly pine (Pinus taeda), yaupon (Ilex vomitoria), Japanese honeysuckle, American beautyberry (Callicarpa americana), ebony spleenwort (Asplenium platyneuron), and multiple species of woody vines. Eleven non-native species invasive (Category 1 or Category 2) by the Georgia Exotic Pest Plant Council (GA-EPPC 2023) were encountered within the park during this monitoring effort. Three of these species—Chinese privet, Chinese tallow, and Japanese honeysuckle—were among the most frequent and abundant of all species observed within Coastal Plain Alluvial Wetland plots. There were no observations of vascular plant species listed as rare and tracked by the Georgia Department of Natural Resources (GADNR 2023) within these monitoring plots. Sweetgum, red maple (Acer rubrum), swamp tupelo (Nyssa biflora), and Chinese tallow were the most dominant species within the tree stratum of Coastal Plain Alluvial Wetland sites; water oak, loblolly pine, and sweetgum were the most dominant species of Coastal Plain Upland Forests. There were very few observable disturbances to natural and semi-natural vegetation communities documented during this monitoring effort, including very little to no impact of browsing by white-tailed deer, rooting by feral hogs, or presence of diseased or dying trees. The two most pronounced threats to native vegetation on the park are (1) the high prevalence of non-native, invasive plant species (particular within alluvial habitat, and (2) the altered hydrology of the park’s alluvial wetlands from conversion of large berms for vehicle and railroad traffic. Long-term monitoring data will aid in understanding how these threats over time impact the park’s forest communities.
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Whelan, Kevin, and Wendy Wright. Protocol implementation plan for monitoring mangrove soil surface elevation tables in South Florida / Caribbean Network parks. National Park Service, 2016. https://doi.org/10.36967/2230638.
Full textAbstract:
The mangrove forest ecosystem is a critical coastal resource in South Florida’s Biscayne National Park (BISC); Salt River Bay National Historical Site and Ecological Preserve (SARI) in St. Croix, U.S. Virgin Islands; and the Virgin Islands National Park (VIIS) in St John, U.S. Virgin Islands. Mangrove wetlands provide flood control, storm protection, shore stabilization, water filtration (capturing soil runoff), carbon sequestration, and habitat for fish and wildlife communities. The economic value of the services derived from mangroves has been estimated as high as $200,000–$900,000 ha-1 (United States Dollar [USD]) (Wells et al. 2006, Gilman et al. 2009). There is a feedback loop between soil elevation, hydrology, and mangrove forest health. The soil elevation level in mangrove forests affects tidal inundation period, tidal inundation frequency, and overall hydroperiod, all of which affect mangrove seedling species recruitment, composition, and survival (Whelan 2009). Additionally, mangrove forest hydrology affects soil processes such as sedimentation, erosion, and the shrink and swell of soil materials. Due to the importance of soil elevation to mangroves, it is critical to understand the rate of change in soil elevation to better predict the long-term ability of mangrove forests to regenerate. Therefore, the National Park Service (NPS) South Florida / Caribbean (SFCN) Inventory and Monitoring (I&M) Network is establishing a long-term soil surface elevation monitoring program in Biscayne, Salt River Bay, and Virgin Islands national parks as part of the Coastal Geomorphology Vital Sign, as part of the vital signs monitoring program. The program aims to monitor rates of soil accretion and erosion, and determine if soil processes are keeping pace with relative sea level (RSL) which has been measured at 1.1–1.9 mm yr-1 in South Florida (Maul and Martin 1993). If the RSL rate is greater than the rate at which mangrove soil elevation increases then the current mangrove forest will transgress upslope and the current areas occupied by mangrove forest will eventually convert to shallow open-water marine habitats as the trees die off and there is no recruitment to replace them. For resource managers, it will be important to understand how this process is affecting mangrove forest in their park units. Local long-term monitoring is necessary to develop this understanding. This plan outlines the means by which monitoring data will be collected, managed, and reported for the monitoring of Mangrove Soil Surface Elevation Tables in SFCN parks and park units, as described in the approved SFCN monitoring plan (Patterson et al. 2008). The South Florida / Caribbean Network is implementing the Southeast Coast Network’s (SECN) peer-reviewed and approved Protocol for Monitoring Coastal Salt Marsh Elevation and Vegetation Communities in Southeast Coast Network Parks (DeVivo et al. 2015) as it relates to soil elevation monitoring. The South Florida / Caribbean Network did not implement the soil salinity component or the marsh vegetation sampling. The modifications made to the sampling process are minor but reflect necessary changes to implement the SECN sampling protocol in the park units of our network. We deviated from the SECN peer-reviewed protocol for a few of the standard operating procedures (SOPs). For example, we drew from the Northeast Coastal and Barrier Network protocol Measuring and Understanding Wetland Elevation Change using the Surface Elevation Table (SET) and Marker Horizon Techniques (Lynch et al. 2015) because we are using their SET Microsoft® Access relational database.