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Articles de revues sur le sujet « Seedling growth rate »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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1

KR, Reshmi Raj, Gopala Krishnan S, Arun Kumar MB, and VP Bansal. "Influence of differential root and shoot growth rate on seedling vigour index in rice." Oryza-An International Journal on Rice 59, no. 3 (2022): 323–29. http://dx.doi.org/10.35709/ory.2022.59.3.7.

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Early seedling vigour is an important trait in direct seeded rice which determines the growth and yield. It is a complex trait and is found to be associated with germination and seedling growth. The rice genotypes, BPT 5204 and PB 1850-27 were screened for early seedling vigour traits and the data was recorded on germination percentage, root length, shoot length, seedling length, seedling fresh weight and seedling dry weight. The seedling vigour index I and seedling vigour index II were calculated for both the genotypes. It was observed that seedling vigour index I and II was found higher in P

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Thompson, T. E., and L. J. Grauke. "Pecan Tree Growth and Precocity." Journal of the American Society for Horticultural Science 128, no. 1 (2003): 63–66. http://dx.doi.org/10.21273/jashs.128.1.0063.

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Precocity of pecan [Carya illinoinensis (Wangenh.) C. Koch] seedlings (year of first fruit production) was studied in relation to original seed measurements (nut weight, buoyancy, volume, and density) and in relation to growth index (GI) measurements of seedling trees for 4 years. A total of 2,071 pecan seedlings, representing nine controlled-cross families, were studied. Original seed measurements were not related to precocity of resultant seedling trees; but seed weight, buoyancy, and volume were significantly correlated with seedling growth rates. Nut density was negatively related to growt

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Thompson, T. E., and L. J. Grauke. "Pecan Tree Growth and Precocity." Journal of the American Society for Horticultural Science 128, no. 1 (2003): 63–66. https://doi.org/10.21273/jashs.128.1.63.

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Precocity of pecan [Carya illinoinensis (Wangenh.) C. Koch] seedlings (year of first fruit production) was studied in relation to original seed measurements (nut weight, buoyancy, volume, and density) and in relation to growth index (GI) measurements of seedling trees for 4 years. A total of 2,071 pecan seedlings, representing nine controlled-cross families, were studied. Original seed measurements were not related to precocity of resultant seedling trees; but seed weight, buoyancy, and volume were significantly correlated with seedling growth rates. Nut density was negatively related to growt

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Kim, Hyeonji, Heejae Jo, Gwang-Jung Kim, Hyung-Sub Kim, and Yowhan Son. "Effects of Spring Warming and Drought Events on the Autumn Growth of Larix kaempferi Seedlings." Water 14, no. 12 (2022): 1962. http://dx.doi.org/10.3390/w14121962.

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High temperatures and droughts following winter dormancy can negatively affect seedling growth and mortality. An open-field experiment was conducted to study the growth and mortality of Larix kaempferi seedlings in response to spring warming and drought treatments and to determine whether seedlings could regain their growth capability once the treatments were discontinued. In May 2020, 1-year-old seedlings were exposed to four treatments: control, warming-only, drought-only, and the combined warming and drought. Drought treatment reduced the seedling height and root collar diameter and increas

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Lin, Jiaqi, Dongling Li, Zhenghui Pan, Dou Feng, and Weiyan Xuan. "Effect of the Floating Seedling Technique on Banana Seedling Growth." HortScience 57, no. 3 (2022): 458–63. http://dx.doi.org/10.21273/hortsci16303-21.

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Floating seedling technology was used to propagate banana seedlings. The effects of different substrates, such as wood bran, vermiculite, and Murashige and Skoog (MS) nutrient solution, at different concentrations on the survival rate of banana floating seedlings and the growth of seedling stem, leaf, and root systems were compared. The results showed that banana seedlings treated with MS nutrient solution at one-half or one-third concentration or hydroponically with controlled slow-release fertilizer (0.5–0.6 g/plant) directly added to the wood bran substrate grew the fastest and had the larg

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Sayar, R., H. Bchini, M. Mosbahi, and H. Khemira. "Response of durum wheat (Triticum durum Desf.) growth to salt and drought stresses." Czech Journal of Genetics and Plant Breeding 46, No. 2 (2010): 54–63. http://dx.doi.org/10.17221/85/2009-cjgpb.

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Two durum wheat (Triticum durum Desf.) cultivars were tested for salt and drought tolerance at germination, seedling emergence and early seedling growth in NaCl and PEG-8000 solutions of different osmotic potentials (&ndash;0.2, &ndash;0.4, &ndash;0.6 and &ndash;0.8 MPa). Daily and final germination and emergence percentage, as well as germination and seedling emergence rate, seedling growth, fresh and dry weight were recorded under controlled conditions. Results showed that germination and emergence rates were delayed by both solutions in both cultivars, but Omrabia showed hig

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Zhao, Wen Ju, Li Rong Wang, Hong Ji, Jian Shu Song, and Yan Wei Fan. "Impacts of Plant Additive on the Seedling Bricks’ Physical Properties." Advanced Materials Research 518-523 (May 2012): 5401–5. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.5401.

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Homemade seedling bricks, which mixed and suppressed with the plant additive, clay, compost, slow-release fertilizer, can create a good living environment for plant growth, guide the development and growth of plant roots, achieve integration of bricks and seedlings to plant, and the seedlings transplant without time limit. We tested the molding density, shatter resistance, seepage rate and other physical properties of seedling bricks without plant additive, adding 5% and 10% of wheat straw, wheat shells and corn leaves, and the results show that adding plant additive can improve the physical p

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Conner, Patrick. "Effect of Nitrogen Fertigation on First-year Pecan Seedling Growth." HortTechnology 17, no. 4 (2007): 491–95. http://dx.doi.org/10.21273/horttech.17.4.491.

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Pecan (Carya illinoinensis) seedling rootstocks require several years of growth in the nursery before they are large enough to graft. In this experiment, first-year pecan seedlings were fertigated with varying amounts of calcium nitrate in an attempt to stimulate growth rates. Pecan seedlings were fertigated every 2 weeks from May through October for a total of 10 applications. Total amounts of nitrogen (N) applied by fertigation were 0, 4, 10, 20, and 40 g of N per seedling. Leaf samples were taken after the fourth and tenth fertigations, and leaf elemental concentration was affected by ferti

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Moore, James A., Zhaofei Fan, and Bahman Shafii. "Effect of Root-Plug Incorporated Controlled-Release Fertilizer on Two-Year Growth and Survival of Planted Ponderosa Pine Seedlings." Western Journal of Applied Forestry 17, no. 4 (2002): 216–19. http://dx.doi.org/10.1093/wjaf/17.4.216.

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Abstract Three controlled-release fertilizers (fast release [FR], moderate release [MR], and slow release [SR]) were incorporated in the root plug at rates of 0.8, 1.6, or 3.2 g/seedling at the time of sowing as supplements to nursery supplied soluble fertilizer. Effects on seedling growth, survival, and foliar nutrient status of the “160/90” container ponderosa pine (Pinus ponderosa) were evaluated after outplanting. At the end of the second growing season, fertilized seedlings had significantly greater diameter and height than unfertilized seedlings. The 3.2 g of MR or SR fertilizer treatmen

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Conner, Patrick. "(130) Effects of Nitrogen Fertigation on First-year Pecan Seedling Growth." HortScience 41, no. 4 (2006): 1062D—1062. http://dx.doi.org/10.21273/hortsci.41.4.1062d.

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Pecan seedling rootstocks require several years of growth in the nursery before they are large enough to graft. In this experiment, first-year pecan seedlings were fertigated with varying amounts of calcium nitrate to stimulate growth rates. Pecan seedlings were fertigated every 2 weeks from May through October for a total of 10 applications. Total amounts of nitrogen (N) applied by fertigation were 0, 4, 10, 20, and 40 g of N per seedling. Leaf samples were taken after the fourth and 10th fertigation, and leaf elemental concentration was affected by fertigation rates. Seedling height and cali

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Gao, Min, Fengbao Yang, Hong Wei, and Xiaoxia Liu. "Automatic Monitoring of Maize Seedling Growth Using Unmanned Aerial Vehicle-Based RGB Imagery." Remote Sensing 15, no. 14 (2023): 3671. http://dx.doi.org/10.3390/rs15143671.

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Accurate and rapid monitoring of maize seedling growth is critical in early breeding decision making, field management, and yield improvement. However, the number and uniformity of seedlings are conventionally determined by manual evaluation, which is inefficient and unreliable. In this study, we proposed an automatic assessment method of maize seedling growth using unmanned aerial vehicle (UAV) RGB imagery. Firstly, high-resolution images of maize at the early and late seedling stages (before and after the third leaf) were acquired using the UAV RGB system. Secondly, the maize seedling center

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S.H.S. Senarathne. "Effect of Arbuscular Mycorrhizal Fungi Based Biofertilizer on Coconut Seedlings Growth in Nursery." CORD 34, no. 2 (2018): 12. http://dx.doi.org/10.37833/cord.v34i2.17.

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The success of a coconut plantation, in terms of its field establishment as well as its future performance, is heavily dependent on the quality of the seedlings used. Coconut nurseries adopt different agronomic practices to produce good quality seedlings. Applying mycorrhizal inoculants is becoming an increasingly common practice in plant nurseries as it facilitates healthy seedling growth resulting in healthy and vigorous seedlings in the nursery, helps to reduce mortality rates of seedlings in the field and reduce water and fertilizer consumption. In this study effects of mycorrhizae based b

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M.G. Nayak and G.S. Mohana, Babli Mog, J. D. Adiga. "Germination and seedling establishment in cashew (Anacardium occidentale L.): An interaction between seed size, relative growth rate and seedling biomass." Journal of Plantation Crops 45, no. 2 (2017): 110. http://dx.doi.org/10.19071/jpc.2017.v45.i2.3305.

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<p>Seeds of cashew were used to determine the effect of seed mass (5.2 to 7.8 g) on germination, seedling emergence and growth<br />under nursery conditions. Germination percentage and germination time showed significant correlation with seed mass. Large<br />sized seeds had higher germination percentage (81.6%) and produced more vigorous seedlings. Per cent seedling emergence was<br />related to seed mass with large sized seeds exhibited faster emergence. Seed mass significantly affected seedling survival and<br />survival rate was high in seedlings arising from

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Gould, Nick, Tony Reglinski, Mike Spiers, and Joe T. Taylor. "Physiological trade-offs associated with methyl jasmonate - induced resistance in Pinus radiata." Canadian Journal of Forest Research 38, no. 4 (2008): 677–84. http://dx.doi.org/10.1139/x07-193.

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Methyl jasmonate (MeJA) can induce defence responses in plants to pathogen attack, but it can also have consequences for plant growth. The transient effects of exogenous MeJA treatment on the resistance of Monterey pine ( Pinus radiata D. Don) seedlings to Diplodia pinea (Desm.) Kickx. and some physiological parameters affecting the impact of treatment on seedling growth were investigated. Following foliar application of 4.5 mmol·L–1 MeJA, disease resistance was greatest 1–2 weeks after treatment and declined with time thereafter. Elevated disease resistance was accompanied by a reduction in s

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Zhang, Haiyan. "Seed Germination and Early Seedling Growth of Cynanchum bungei Decne (Asclepiadaceae) in Response to Photoperiod, Temperature, and Seed Size." HortScience 47, no. 9 (2012): 1338–41. http://dx.doi.org/10.21273/hortsci.47.9.1338.

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Cynanchum bungei Decne is a rare, endemic, and important medicinal plant species in China. Seed germination and early seedling growth of large seeds (greater than 7 mm) and small seeds (smaller than 7 mm) were investigated at three temperatures (15, 20, and 25 °C) in both continuous light and alternating light/dark photoperiods to determine seed propagation requirements. Photoperiod significantly affected seed germination and early seedling growth. Germination and seedling growth at a 12:12-h photoperiod performed better than in continuous light. Temperature had a significant effect on germina

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Healy, Will, and David Graper. "PETUNIA SEEDLING GROWTH - HPS PHOTOPERIOD STUDY." HortScience 25, no. 9 (1990): 1103c—1103. http://dx.doi.org/10.21273/hortsci.25.9.1103c.

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Petunia `Red Flash' seedling were grown under HPS (175 μmolm-2 s-1) photoperiod treatments of 10, 12, 14 or 16 hr at 20C soil temperature in a shaded glasshouse where the maximum peak PPF was reduced to 150 μmolm-2s-1. Seedling dry weight and individual leaf area were determined daily. The photosynthetic rate was determined when seedlings reached the second true leaf stage.The dry weight response to increasing photoperiod durations was cubic with a peak at 14 hr. Seedling dry weight increased slowly during days 5 through 10 then increased rapidly during the next 7 to 10 days. This increase coi

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Johnsen, Kurt H. "Growth and ecophysiological responses of black spruce seedlings to elevated CO2 under varied water and nutrient additions." Canadian Journal of Forest Research 23, no. 6 (1993): 1033–42. http://dx.doi.org/10.1139/x93-132.

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Two controlled-environment studies examined growth and ecophysiological responses of black spruce (Piceamariana (Mill.) B.S.P.) seedlings to elevated CO2 under varied water and nutrient additions. Growth analyses were conducted followed by measurements of gas exchange, xylem pressure potential and foliar N concentrations. Growth under elevated CO2 (700 ppm) increased final seedling dry weights by 20–48% compared with seedling growth under ambient CO2 (350 ppm). Percent increases in seedling dry weight were greater under drought versus well-watered conditions and higher versus lower nutrient ad

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Mao, Peili, Guangxuan Han, Guangmei Wang, Junbao Yu, and Hongbo Shao. "Effects of Age and Stand Density of Mother Trees on EarlyPinus thunbergiiSeedling Establishment in the Coastal Zone, China." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/468036.

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Effects of age and stand density of mother tree on seed germination, seedling biomass allocation, and seedling growth ofPinus thunbergiiwere studied. The results showed that age of mother tree did not have significant influences on seed germination, but it was significant on seedling biomass allocation and growth. Seedlings from the minimum and maximum age of mother tree had higher leaf mass ratio and lower root mass ratio than from the middle age of mother tree. Moreover, they also had higher relative height growth rate and slenderness, which were related to their biomass allocation. Stand de

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McCreary, Douglas D., and Joe B. Zaerr. "Root respiration has limited value for assessing Douglas-fir seedling quality." Canadian Journal of Forest Research 17, no. 9 (1987): 1144–47. http://dx.doi.org/10.1139/x87-175.

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Root damage is a principal cause of poor seedling quality. Currently, the most widely used seedling-quality test measures a seedling's ability to initiate and elongate roots in a favorable environment; however, this test requires a lengthy response period and tedious, time-consuming measurements. Alternatively, the respiration rate of roots could be measured much more quickly and easily. Results of this study, which examined whether root respiration could successfully predict the survival and growth of potted Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) seedlings in a growth room, indicat

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Bhardwaj, R. L. "Effect of Growth Media on Seed Germination and Seedling Growth in Papaya (Carica papaya L.) Cv. Red Lady." Journal of Horticultural Sciences 8, no. 1 (2013): 41–46. http://dx.doi.org/10.24154/jhs.v8i1.332.

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The study was carried out to explore the effect of growth media on seed germination and seedling growth in papaya cv. Red Lady. Three types of media with three levels of cocopeat were studied. The experiment was laid out in Completely Randomized Design, with nine treatment combinations, and replicated thrice. Results showed that the medium Vermicompost + Sand + Pond soil (1:1:1) with 2cm cocopeat layer on top of the polybag (T9) gave highest germination rate (92.71%), maximum speed of emergence (493.34), highest seed vigour (89.33), maximum germination index (7.18), highest germination value (

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Hastuti, Endah Dwi, and Rini Budihastuti. "Analysis on the Absolute Growth Rate of Rhizophora mucronata Seedling in Silvicultural Pond Canals by the Influence of Initial Condition and Changes of Environment Quality." Biosaintifika: Journal of Biology & Biology Education 8, no. 1 (2016): 56. http://dx.doi.org/10.15294/biosaintifika.v8i1.5358.

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<p>Mangrove seedling growth in silvofishery pond is limited to water quality dynamics while the water quality dynamically changes. This research aimed to study the changes of environmental factor condition in silvofishery pond and to analyze its impacts on the growth of mangrove seedling. Research experiment involved18 treatment plots with mangrove Rhizophora mucronata seedling. Observed parameters included temperature, turbidity, salinity, pH, DO, TSS, BO, N and P. Calculation was conducted for the deviation of each parameters. Mangrove growth parameters were including height and diamet

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Hardiwinoto, Suryo, Nur Adin Eko Saputro, Handojo Hadi Nurjanto, and Widiyatno Widiyatno. "Media Kompos Serbuk Gergaji Kayu Sengon dan Pupuk Lepas Lambat untuk Meningkatkan Pertumbuhan Semai Pinus merkusii di KPH Banyumas Timur." Jurnal Ilmu Kehutanan 4, no. 2 (2013): 111. http://dx.doi.org/10.22146/jik.1567.

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Effects of Composted Sawdust of Falcata Media and Slow Release Fertilizer to Promote Pinus merkusii Seedling growth in Banyumas Timur FMUPhysical and chemical properties of the potting media, especially porosity and nutrient availability, are required to produce good quality seedlings of pine (Pinus merkusii Jungh et de Vries). Composted sawdust of sengon (Paraserianthes falcataria) wood is a potential material to be used for growing media of pine seedlings. However, since this material contains low nutrients, addition of a slow release fertilizer is required to meet the nutrient demand of see

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Zhou, Biao, Hong Miao, Chunsong Guan, Xin Ji, and Xiaochan Wang. "Design and Test of Seedling-Picking Mechanism of Fully Automatic Transplanting Machine." Applied Sciences 14, no. 20 (2024): 9235. http://dx.doi.org/10.3390/app14209235.

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The seedling retrieval mechanism is a crucial component of fully automatic transplanting machines, significantly influencing the quality, reliability, and efficiency of the transplanting process. Nonetheless, the existing seedling retrieval mechanisms in current transplanting machines exhibit several deficiencies, including substantial damage to seedlings and inadequate retrieval accuracy. To overcome these challenges, we propose an integrated approach combining pneumatic and mechanical techniques to further improve performance. By employing a lower thimble elevation and clamping mechanism, al

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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

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Connolly, Brian M. "Collection Age and Seed Mass Influence Germination and Seedling Growth in Midwestern White Spruce Accessions." Forest Science 67, no. 6 (2021): 637–41. http://dx.doi.org/10.1093/forsci/fxab038.

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Abstract Stored tree seed collections are essential resources for seedling production and conserving unique germplasm. As stored seeds age, however, seed viability and seedling vigor can decline. This study tests how age and seed mass correspond to germination dynamics and seedling vigor in four white spruce collections from the upper midwestern United States. Using two seedling growth experiments, this study demonstrates that white spruce seeds stored for &gt;30 years have low seed viability and slower seedling growth rates compared with seeds from more recent (≤10 years) white spruce col

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Che, Yuying, Yong Kong, Shangwen Song, Xianfeng Yi, Jing Zhou, and Baoxuan Liu. "Effect of Cork Flour Supplementation on the Growth Indices and Rhizosphere Bacterial Communities of Quercus variabilis Seedlings." Forests 14, no. 5 (2023): 892. http://dx.doi.org/10.3390/f14050892.

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Substrate and rhizosphere microorganisms are key factors affecting seedling growth; however, the effects of seedling substrates and rhizosphere bacteria on the growth of Quercus variabilis are not completely understood. Here, Q. variabilis seedlings were grown in substrates with and without cork flour, as follows: H substrate (charcoal soil/cork flour/perlite, 1:1:2), S substrate (cork flour/perlite, 1:1), and the control (CK) substrate (charcoal soil/perlite, 3:2). High-throughput sequencing and qPCR were used to investigate the effects of these substrates on seedling growth, physiological in

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Sun, Qiaoyu, Yong Liu, Hongbin Liu, and R. Kasten Dumroese. "Interaction of Biochar Type and Rhizobia Inoculation Increases the Growth and Biological Nitrogen Fixation of Robinia pseudoacacia Seedlings." Forests 11, no. 6 (2020): 711. http://dx.doi.org/10.3390/f11060711.

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Adding biochar to soil can change soil properties and subsequently affect plant growth, but this effect can vary because of different feedstocks and methods (e.g., pyrolysis or gasification) used to create the biochar. Growth and biological nitrogen fixation (BNF) of leguminous plants can be improved with rhizobia inoculation that fosters nodule development. Thus, this factorial greenhouse study examined the effects of two types of biochar (i.e., pyrolysis and gasification) added at a rate of 5% (v:v) to a peat-based growth substrate and rhizobia inoculation (yes or no) on Robinia pseudoacacia

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Couvillon, Gary A. "Cercis canadensis L. Seed Size Influences Germination Rate, Seedling Dry Matter, and Seedling Leaf Area." HortScience 37, no. 1 (2002): 206–7. http://dx.doi.org/10.21273/hortsci.37.1.206.

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Several studies with annual crops have shown that large seeds improve percent germination, seedling growth, and uniformity, yield, seedling vigor, and stress tolerance. Little information is available on the influence of seed size on the resulting seedlings of woody plant species. Cercis canadensis L. seeds were divided into large and small seed size fractions and the seeds scarified, stratified, and planted. A larger percentage of large seeds germinated than did small seeds. Seedlings from large seeds had a greater peak and germination value than small seeds, indicating greater vigor and a mo

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Hu, Fan, Xuan, Mgelwa, and Chen. "Distinct Growth and Nutrient Status Responses to Fertilization Regimes in Two Generations of Chinese Fir Seedlings." Forests 10, no. 9 (2019): 719. http://dx.doi.org/10.3390/f10090719.

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Exponential fertilization is well-known for improving the growth and nutritional status of seedlings during nursery culture. However, less is known about how genetic variability among seedling species influences the effects of fertilization regimes on the growth of seedlings and their nutritional status under varying fertilization levels. Here, we conducted a greenhouse experiment to compare the growth, as well as the nitrogen (N) and phosphorus (P) nutrient concentration responses, of 2- and 3-generation Chinese fir (Cunninghamia lanceolata (Lambert) Hooker) seedlings to the impacts of varyin

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Xia, Hongmei, Shicheng Zhu, Teng Yang, et al. "A Plug Seedling Growth-Point Detection Method Based on Differential Evolution Extra-Green Algorithm." Agronomy 15, no. 2 (2025): 375. https://doi.org/10.3390/agronomy15020375.

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To produce plug seedlings with uniform growth and which are suitable for high-speed transplanting operations, it is essential to sow seeds precisely at the center of each plug-tray hole. For accurately determining the position of the seed covered by the substrate within individual plug-tray holes, a novel method for detecting the growth points of plug seedlings has been proposed. It employs an adaptive grayscale processing algorithm based on the differential evolution extra-green algorithm to extract the contour features of seedlings during the early stages of cotyledon emergence. The pixel ov

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Wismar, Jan Ericson, Ambariyanto, and Widianingsih. "Seagrass (<I>Enhalus acoroides</I>) Restoration Performance with Two Different Methods (Anchor and Seed) in Panjang Island, Jepara, Indonesia." Jurnal Ilmiah Perikanan dan Kelautan 15, no. 1 (2023): 84–94. http://dx.doi.org/10.20473/jipk.v15i1.35836.

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Highlight Research Seeds can grow into seagrass seedlings for an optimal period of five weeks Seed sowing can be optimized by supplementing nutrients with fertilizers The seedling transplant method, which utilizes seed seedlings, is not significantly different in daily growth from the anchor transplant method, which utilizes donors/seeds transport The biomass content of seagrass leaves can be used to determine the growth rate of the leaves Abstract Globally, the area of seagrass beds important to the ecosystems in coastal environment is decreasing due to environmental pressures, both natural a

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Marx, Laura M., and Michael B. Walters. "Effects of nitrogen supply and wood species on Tsuga canadensis and Betula alleghaniensis seedling growth on decaying wood." Canadian Journal of Forest Research 36, no. 11 (2006): 2873–84. http://dx.doi.org/10.1139/x06-171.

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Eastern hemlock (Tsuga canadensis (L.) Carrière) and yellow birch (Betula alleghaniensis Britt.) in primary Michigan forests depend on decaying wood for seedling-establishment sites, but seedling densities vary across wood species (hemlock, yellow birch, and sugar maple (Acer saccharum Marsh.)). We collected seedlings and wood from a natural field experiment and conducted a companion greenhouse experiment to determine whether seedling mass and nitrogen (N) content varied with wood species and whether they were related to wood inorganic N supply. Yellow birch seedlings were largest on hemlock w

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Şemun, TAYYAR, and YALÇIN Sevil. "The Influence of Ultraviolet-C Radiation on Seedling Growth of Cowpea (Vigna unguiculata (L) Walp.)." Journal of Scientific and Engineering Research 8, no. 3 (2021): 203–7. https://doi.org/10.5281/zenodo.10577667.

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<strong>Abstract</strong> This research was conducted to investigate the effects of ultraviolet-C (UV-C) radiation on seedling emergence and seedling growth parameters of cowpea seeds. The UV-C radiation treatments at different exposure times (0, 30, 60, 180 and 300 minutes) on the seeds were applied by using a ST 51 G/W 51UV tube with a wavelength of about 254nm. The control and UV-C treated seeds were sown in plastic boxes filled with experimental soil and incubated at optimum conditions. The seedling emergence rates (%), seedling height (cm), root length (cm), fresh and dry weights of seedl

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Hall, Kip E., Larry H. McCormick, and Larry J. Kuhns. "Black Alder Seedlings Demonstrate Tolerance to Preemergence Herbicides in Preliminary Trials1." Northern Journal of Applied Forestry 3, no. 2 (1986): 76–79. http://dx.doi.org/10.1093/njaf/3.2.76.

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Abstract Seven preemergence herbicides, atrazine, metolachlor, napropamide, oryzalin, oxadiazon, oxyfiuorfen, and simazine, were screened for phytotoxic effects on newly planted black alder seedlings. All treatments containing atrazine significantly reduced seedling survival, as did simazine treatments greater than 3.4 kg/ha. The simazine rate of 3.4 kg/ha, the napropamide rate of 26.9 kg/ha, and metolachlor rates greater than 3.4 kg/ha temporarily stunted seedling height growth early in the first growing season. Temporary stunting was also observed for the highest rates of the granular and em

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Choi, Eun-Ji, Seong-Hyeon Yong, Dong-Jin Park, et al. "Germination and Growth Characteristics of Quercus myrsinifolia Blume Seedlings According to Seed Coat Removal, Type of Potting Soil and Irrigation Cycle." Forests 13, no. 6 (2022): 938. http://dx.doi.org/10.3390/f13060938.

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The importance of evergreen oak species is increasing due to changes in the ecosystem caused by climate change and environmental changes such as fine dust and carbon dioxide. The Quercus myrsinifolia Blume seeds showed a recalcitrant seed property, where the germination rate decreased when the moisture content was decreased. For seedling propagation of evergreen oak, the effect of oak seed coat (pericarp and testa) removal on germination and seedling growth as well as the effect of potting soil and irrigation cycle on seedling quality were investigated. The germination rate and germination cha

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Budiadi, Budiadi, Widiyatno Widiyatno, Handojo Hadi Nurjanto, Habib Hasani, and Aqmal Nur Jihad. "Seedling Growth and Quality of Avicennia marina (Forssk.) Vierh. under Growth Media Composition and Controlled Salinity in an Ex Situ Nursery." Forests 13, no. 5 (2022): 684. http://dx.doi.org/10.3390/f13050684.

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Avicennia marina (Forssk.) Vierh. is an important mangrove species that inhabits the outermost zone of mangrove forests, but it has been shown to have a poor ability to regenerate due to its low seedling quality. We conducted a study to evaluate the specific growth requirements of A. marina, i.e., medium and salinity level. Germinated seeds were transplanted to pots filled with media, i.e., silt loam (M1), loam (M2), sandy loam (M3), or sand (M4), with various salinity levels 5 (S1), 5–15 (S2), 15–25 (S3), or 25–35 ppt (S4). Survival rate, growth, biomass partition, and seedling quality were o

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da Silva, Poliana Noemia, Vinícius Politi Duarte, Evaristo Mauro de Castro, Bruno Montoani Silva, Josiel de Jesus Santos, and Fabricio José Pereira. "Compaction of Iron Mining Tailings Impairs Seedling Emergence of Schinus terebinthifolia but Vigor Features Show Tolerance During Early Growth." Forests 16, no. 6 (2025): 950. https://doi.org/10.3390/f16060950.

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Soil compaction is a well-known harmful process for germination and seedling growth. Studies about compaction in mining tailings have been neglected despite being essential for the reforestation of impacted areas. This work evaluated the effects of compaction of iron mining tailings on the seedling emergence, early growth, and photosynthesis of Schinus terebinthifolia Raddi, a tolerant species with potential for reforestation. Experiments were implemented in a greenhouse where seeds of S. terebinthifolia were sown in iron mining tailings with four compaction treatments: (1) an uncompacted dry

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Tumpa, Katarina, Antonio Vidaković, Damir Drvodelić, et al. "The Effect of Seed Size on Germination and Seedling Growth in Sweet Chestnut (Castanea sativa Mill.)." Forests 12, no. 7 (2021): 858. http://dx.doi.org/10.3390/f12070858.

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The quantity and quality of seedlings in the nursery has an impact on the success of re-establishment and later growth. High germination rates enable a sufficient number of seedlings, and their quality is assessed using a number of parameters, including seedling height and root collar diameter. These parameters are influenced in some species by seed size, but the correlation between them is species-specific. The model species in this research was sweet chestnut (Castaneasativa Mill.), and seeds from 12 populations from two distinct biogeographical regions of Croatia were collected. We examined

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Wyatt, Jim E., and Marla C. Akridge. "EFFECTS OF SEED SIZE ON LIMA BEAN GROWTH AND DEVELOPMENT." HortScience 28, no. 4 (1993): 274D—274. http://dx.doi.org/10.21273/hortsci.28.4.274d.

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Objectives of this study were to determine the effects of lima bean seed size differences and a short chilling period after planting on seedling emergence rate, seedling abnormalities and vigor. Individual seeds of 'Jackson Wonder' lima bean were weighed and placed into one of five size classes: 24-33. 36-41. 44-49, 52-57, and 60-73 g per 100 seed. Seed of each size class were germinated at a constant 23-26C or chilled at 8C for 24 hrs and then moved to 23-26C conditions for the remainder of the study. A 24 hr chilling period after planting had a detrimental effect on subsequent lima bean seed

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Nordin, Nurliyana, Mohd Izuan Effendi Halmi, Pitipong Thobunluepop, et al. "Effect of Seed Germination and Early Seedling Growth Response on Two Rice (Oryza sativa) Varieties Supplied with Different Types and Concentrations of Wastewater in Thailand." Journal of Biochemistry, Microbiology and Biotechnology 11, no. 2 (2023): 24–34. http://dx.doi.org/10.54987/jobimb.v11i2.848.

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With increasing concerns over water scarcity, wastewater reclamation for agricultural irrigation has gained attention. However, the use of wastewater can have both positive and negative effects on crop growth. Seed germination and early seedling growth tests are considered to accurately represent crop growth population. This study aimed to evaluate the effect of different types and concentrations of wastewater on rice seed germination and early seedling growth. Two rice varieties, SIRAJ279 and MR219, were grown in wastewater from shrimp culture, domestic sources, and cement factories at five c

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Bi, Yinli, Linlin Xie, Zhigang Wang, Kun Wang, Wenwen Liu, and Wenwu Xie. "Arbuscular mycorrhizal symbiosis facilitates apricot seedling (Prunus sibirica L.) growth and photosynthesis in northwest China." International Journal of Coal Science & Technology 8, no. 4 (2021): 473–82. http://dx.doi.org/10.1007/s40789-021-00408-6.

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AbstractArbuscular mycorrhizal (AM) fungi can successfully enhance photosynthesis (Pn) and plants growth in agricultural or grassland ecosystems. However, how the symbionts affect species restoration in sunlight-intensive areas remains largely unexplored. Therefore, this study’s objective was to assess the effect of AM fungi on apricot seedling physiology, within a specific time period, in northwest China. In 2010, an experimental field was established in Shaanxi Province, northwest China. The experimental treatments included two AM fungi inoculation levels (0 or 100 g of AM fungal inoculum pe

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Al-Mousawi, Muntadher Mohammed, Manar A. F. Hassan, Susan Mohammed Alrubaei, Zaid Khaleel Kadhim, and Maryam M. Salman. "Effect of Spraying Nano-Fertilizer (Loenergy Plus) and Hibiscus Extract on the Vegetative Growth Characteristics of the Seedling of Sour Orange Citrus aurantium L." IOP Conference Series: Earth and Environmental Science 1262, no. 4 (2023): 042029. http://dx.doi.org/10.1088/1755-1315/1262/4/042029.

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Abstract The experiment was carried out from the middle of March until the end of June in the greenhouse belonging to the Department of Horticulture and Landscape Engineering, the College of Agriculture, and the University of Karbala. To investigate the impact of spraying hibiscus extract and Nano-fertilizer (Loenergy Plus) on the vegetative growth traits of the seedling of the orange starting in 2022. The experiment was set up as a randomized complete block design (RCBD) with two factors: with Nano-fertilizer (Loenergy Plus) and hibiscus extract, each in three concentrations, and three replic

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Kang, Sang-Mo, Muhammad Imran, Shifa Shaffique, Eun-Hae Kwon, Yong-Sung Park, and In-Jung Lee. "Growth and Photosynthetic Characteristics of Sesame Seedlings with Gibberellin-Producing Rhodobacter sphaeroides SIR03 and Biochar." International Journal of Plant Biology 13, no. 3 (2022): 257–69. http://dx.doi.org/10.3390/ijpb13030022.

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The use of plant growth-promoting rhizobacteria (PGPR) with biochar is apprised to be a promising bio-fertilizer for improving the soil fertility and plant growth and development. The current study aimed to identify a potential plant growth-promoting rhizobacterium alongside biochar to improve sesame seedling productivity. Our results revealed that among the nine isolates, SIR01, SIR03, and SIR07 significantly improved the growth and biomass of sesame and Waito-C rice seedlings. The increase in growth of Waito-C rice seedlings through isolate SIR01, SIR03, and SIR07, suggests their ability to

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Pathania, Ranu, J. Shekhar, S. S. Rana, and Saurav Sharma. "Assessment of physiological indices and energetics under different system of rice intensification in north western Himalayas." Journal of Applied and Natural Science 9, no. 4 (2017): 2372–76. http://dx.doi.org/10.31018/jans.v9i4.1540.

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Field experiment was conducted at the research farm of CSK Himachal Pradesh Krishi Vishvavidyalaya, Rice and Wheat Research Centre, Malan during kharif 2013 with the objective to select the best seedling age and spacing of rice under system of rice intensification in terms of energetic and employment generation for mid hill con-dition of Himachal Pradesh. The experiment was laid out in 3 times replicated split plot design, assigning of three seedling ages (10, 17 and 24 days) and two spacings (20 cm x 20 cm and 20 cm x 15 cm) in main plots and four seedling vigours corresponding to four seedin

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Smith, Albert E. "Interference with Loblolly Pine (Pinus taeda) Seedling Growth by Three Grass Species." Weed Technology 3, no. 4 (1989): 696–98. http://dx.doi.org/10.1017/s0890037x00033066.

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The growth of loblolly pine seedlings was reduced by interference from bermudagrass, tall fescue, and broomsedge. The order for treatment influence on pine seedling growth rate measurements was tall fescue > bermudagrass > broomsedge > weed free for the 2-yr study. The increase in height of seedlings for the weed free, broomsedge, bermudagrass, and tall fescue was 4.1, 2.9, 1.9, and 1.1 cm/month, respectively; and the average increase in seedling stem diameter was 1.3, 0.5, 0.4, and 0.2 mm/month, respectively.

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Tanner, E. V. J., V. K. Teo, D. A. Coomes, and J. J. Midgley. "Pair-wise competition-trials amongst seedlings of ten dipterocarp species; the role of initial height, growth rate and leaf attributes." Journal of Tropical Ecology 21, no. 3 (2005): 317–28. http://dx.doi.org/10.1017/s0266467405002269.

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To investigate whether seedlings of ten dipterocarp species differed significantly in terms of growth and mortality or whether species were not significantly different and could be considered ecologically similar, seedlings were grown, two per pot, in two experiments: (1) where the two seedlings were of equal height (30 cm); and (2) where one seedling was 10 cm shorter than the other. Seedlings were grown in a shade house with 15% above-canopy light in a 50:50 forest soil–sand mixture and were watered frequently; pots were placed so that seedling density was 130 seedlings m−2 of ground. In the

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Zhou, Xiangyu, Yu Zhang, Suohu Leng, et al. "Uniconazole and Adaptability of Transplantations by Enhancing the Competition Tolerance in a High Sowing Density of Rapeseed Blanket Seedlings." Agronomy 12, no. 11 (2022): 2637. http://dx.doi.org/10.3390/agronomy12112637.

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Having nursery rapeseed (Brassica napus L.) seedlings at a high density in a tray is an indispensable step to realizing mechanized transplanting for rapeseed. The reduction in seedling quality caused by high sowing density is one of the key factors affecting transplanting quality and yield. Uniconazole has been considered as a potential plant growth regulator to improve plant growth under diverse unfavorable circumstances. In two sowing densities (400 and 800 seeds per tray), an experiment was carried out between 2021 and 2022 to investigate the effects of uniconazole seed-coating treatments o

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Pola, Wissanee, and Sukanya Aiamla-or. "Seedling Growth and Systemic Uptake of Liquid Vermicompost-Coated Seeds in Organic Pumpkin (Cucurbita sp.)." Horticulturae 11, no. 1 (2025): 58. https://doi.org/10.3390/horticulturae11010058.

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Liquid vermicompost (LVC) is one of the organic ingredients for improving plant growth. This study aims to investigate the impact of the application of LVC coating formulations in distinct ratios on seeding emergence, seedling growth parameters, and nitrogen content as well as the systemic uptake characteristics in seedlings. Coating formulations contained gum arabic (GA) mixed with 5–15% of LVC and were applied to pumpkin seeds and compared to non-coated seeds. All samples were stored under cold and ambient conditions for 3 months to evaluate the performance of the coating. Results showed no

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Marler, Thomas E. "Illuminating Long-lived Cycas Cotyledons Reduces Sink Demands on Megagametophytes during Initial Seedling Growth." HortScience 60, no. 1 (2025): 133–39. https://doi.org/10.21273/hortsci18256-24.

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Cycas megagametophyte resources are translocated to developing seedlings through the persistent green cotyledons. The source activities of cotyledons and megagametophytes following germination are not adequately understood. The decline in megagametophyte weight during seedling development was quantified until ultimate tissue desiccation for two Cycas species. In addition, the influence of illuminating the green cotyledons during germination and initial radicle growth on megagametophyte, root, and cotyledon dry weight (DW) was determined to evaluate the role of cotyledon photosynthesis on growt

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Diniz, Kênia Almeida, Paulo de Albuquerque Silva, João Almir Oliveira, and José Renato Emiliorelli Evangelista. "Sweet pepper seed responses to inoculation with microorganisms and coating with micronutrients, aminoacids and plant growth regulators." Scientia Agricola 66, no. 3 (2009): 293–97. http://dx.doi.org/10.1590/s0103-90162009000300002.

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Small sized seeds, such as the horticultural species, have limited quantities of reserves that can be balanced by coating then with essential nutrients for their initial development. In addition, inoculation of the seeds with microorganisms may protect the plants against phytopathogens, thus enhancing their growth. The present work had the objective of evaluate the physiological quality and seedling development of sweet pepper seeds and seedlings coated with several kind of films. Seeds were first coated with polymers and then with antagonistic microorganisms (Trichoderma viride, Trichoderma p

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