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Journal articles on the topic 'Early seedlings'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Bisognin, Dilson Antônio, Luis Velasquez, and Irvin Widders. "Cucumber seedling dependence on cotyledonary leaves for early growth." Pesquisa Agropecuária Brasileira 40, no. 6 (2005): 531–39. http://dx.doi.org/10.1590/s0100-204x2005000600002.

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The objective of this work was to evaluate the dependence of cucumber (Cucumis sativus L.) seedlings on cotyledonary leaves for early growth and establishment. Sets of two uniform emerging seedlings were used to quantify the initial growth and dry matter accumulation, as well as the intensity and stage of cotyledon damage in seedling establishment and to determine cotyledon protein, amino acid and carbohydrate contributions to the growing seedling. Cucumber seedling establishment was found to be highly dependent on cotyledonary leaves. Root system establishment was highly dependent on the heal

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2

Moe, Roar, John E. Erwin, and Will Carlson. "Factors Affecting Gerebera jamesonii Early Seedling Branching and Mortality." HortTechnology 6, no. 1 (1996): 59–61. http://dx.doi.org/10.21273/horttech.6.1.59.

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The role of irradiance and/or ethylene in inducing mortality and self-branching disorders in Gerbera jamesonii Bolus. seedlings was studied. Seedling mortality increased from 8% to 57% when seed was covered with vermiculite than left uncovered during germination. Supplemental lighting for 30 days after germination decreased seedling mortality and decreased the time to visible bud compared to seed germinated under natural light only. In subsequent experiments, seeds were germinated and then seedlings were water logged or sprayed with ethephon (0.69, 3.45, or 17.25 mM) at four different stages o

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3

Vasconcelos, Heraldo L., and J. Malcolm Cherrett. "Leaf-cutting ants and early forest regeneration in central Amazonia: effects of herbivory on tree seedling establishment." Journal of Tropical Ecology 13, no. 3 (1997): 357–70. http://dx.doi.org/10.1017/s0266467400010567.

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ABSTRACTThe effects of herbivory by the leaf-cutting antAtta laevigataFr. Smith on the re-establishment of forest trees in an abandoned farm near Manaus, central Amazonia, were investigated. Experimental seedling transplants and observations on seedlings which emerged naturally in the study area showed that damage by leaf-cutting ants negatively affected tree seedling survival and growth. However, excluding leaf-cutting ants from experimental plots for 20 mo did not significantly increase tree seedling densities. The number of seedlings emerging varied considerably between plots and this obscu

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4

Duchesneau, Robin, and Hubert Morin. "Early seedling demography in balsam fir seedling banks." Canadian Journal of Forest Research 29, no. 10 (1999): 1502–9. http://dx.doi.org/10.1139/x99-090.

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Following the 1995 mast year, we conducted detailed seedling demography surveys to characterize some ecological factors affecting germination and early establishment in understory balsam fir (Abies balsamea (L.) Mill.) seedling banks and verify if recruitment from a cohort can potentially renew the balsam fir seedling bank. Twenty-five seed traps paired with 32 demography subplots were located in each of four permanent plots and regularly monitored over a 2-year period. Spatial patterns of newly emerged seedlings generally corresponded to those found for seed dispersal. However, at the end of

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5

Tuttle, C. L., D. B. South, M. S. Golden, and R. S. Meldahl. "Initial Pinustaeda seedling height relationships with early survival and growth." Canadian Journal of Forest Research 18, no. 7 (1988): 867–71. http://dx.doi.org/10.1139/x88-133.

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Initial planting height of loblolly pine (Pinustaeda L.) seedlings from several nurseries and seed sources was related to survival and height growth on "good" and "poor" planting chances in Alabama. A planting chance was classified as poor if 2-year survival was less than 75% and total 2-year height growth was less than 75 cm. Seedling height (measured immediately following planting) was negatively related to survival, and the slope of the regression was four times greater when the planting chance was classified as poor than when it was classified as good. Initial height was also negatively re

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6

von Allmen, Lynette, and Tamara Thomsen. "EARLY SCREENING OF APPLE SEEDLINGS FOR CALCIUM UPTAKE." HortScience 27, no. 6 (1992): 581f—581. http://dx.doi.org/10.21273/hortsci.27.6.581f.

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Seedling of “Cortland” and “Idared” apples (Malus domestica) were grown in hydroponics and the shoots and roots were evaluated for percent concentration of calcium. “Cortland” is reported to be efficient in calcium uptake in comparison to “Idared”, reputed to be less efficient in calcium uptake and utilization. The seedlings were grown in hydroponic solutions containing calcium ranging from 0.5 ppm to 3.0 ppm concentrations. The shoots and the roots of the seedlings were analyzed for calcium content after 45 days. “Idared” seedling roots and shoots had higher calcium content at 0.5 ppm. Howeve

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7

Chang, Xiaochao, Jin Zhang, Fangfang Wan, Lihong Xian, and Yong Liu. "Effects of Root Pruning and Size on Growth Traits of Hybrid Poplar Seedlings." Forests 15, no. 10 (2024): 1770. http://dx.doi.org/10.3390/f15101770.

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Selecting seedlings of varying sizes and effectively managing root pruning are key challenges in transplantation. However, the effects of seedling size and root pruning on transplantation outcomes are not fully understood. This study classified one-year-old Populus ‘Beilinxiongzhu-01’ seedlings into three size categories based on height: large (308.75 ± 9.66 cm), medium (238.00 ± 7.71 cm), and small (138.92 ± 7.18 cm). In early March of the subsequent year, root pruning was applied with varying intensities based on root collar diameter: low (15 times), medium (7.5 times), and high (3.75 times)

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8

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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9

Fried, Jeremy S., John C. Tappeiner II, and David E. Hibbs. "Bigleaf maple seedling establishment and early growth in Douglas-fir forests." Canadian Journal of Forest Research 18, no. 10 (1988): 1226–33. http://dx.doi.org/10.1139/x88-189.

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Survival, age and height distributions, and stocking of bigleaf maple (Acermacrophyllum Pursh) seedlings were studied in 1- to 250-year-old Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) stands in western Oregon to identify the stages in stand development in which bigleaf maple is most likely to establish successfully from seed. Maple seedling emergence averaged 30–40% where seeds were planted and protected from rodents but was typically <2% for unprotected seeds. Seedling survival after 2 years was highly dependent on canopy density, measured by percent sky. Average 1st-year survival of

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10

R. RAJENDRAN, V. RAV, K. VALLIAPPAN, et al. "Early production of robust seedlings through modified mat nursery for enhancing rice (Oryza sativa) pxoductivity and profit." Indian Journal of Agronomy 50, no. 2 (2001): 132–36. http://dx.doi.org/10.59797/ija.v50i2.5084.

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A modified rice (Oryza sativa L.) mat nursery was developed at the Soil and Water Management Research In- stitute (SWMRI), Thanjavur, India. It produced robust seedlings in 15 days after sowing (DAS) that were similar in size as that of 25 to 30 days old seedlings produced in traditional nursery. Seedling mats could be easily trans- ported and easily separated. The modified rice mat nursery could save the cost on seed, water'and labour and thereby an overall saving of cost by about 50% was achieved. Soil + pressmud mixture (1 :I wlw) produced the most vigorous seedlings in 15 days, recording t

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11

MISHRA, ABHA, and V. M. SALOKHE. "SEEDLING CHARACTERISTICS AND THE EARLY GROWTH OF TRANSPLANTED RICE UNDER DIFFERENT WATER REGIMES." Experimental Agriculture 44, no. 3 (2008): 365–83. http://dx.doi.org/10.1017/s0014479708006388.

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SUMMARYA series of experiments was conducted on rice seedlings in a nursery seedbed and after transplanting in order to understand root and shoot characteristics, and their contribution to the production of tillers and dry matter. At the nursery stage, the seedlings' were studied at varying densities (high and low) and fertilizer treatments (with and without nitrogen) at 12 and 24 days after sowing (DAS) in wet or dry seedbeds. After transplanting, the effects of seedling age at the time of transplanting (12 and 30 days), method of raising seedlings (dry or wet seedbed) and water regimes (floo

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12

Watson, Gary W., and Angela M. Hewitt. "Early Flare Root Development on Nursery Field-Grown Seedling Stock." Forests 11, no. 10 (2020): 1031. http://dx.doi.org/10.3390/f11101031.

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Field production of seedlings used to create nursery stock liners involves transplanting and root pruning that can alter root system architecture. Seedlings of eight species of trees commonly used in urban landscapes were selected based on the configuration of their woody lateral roots; Preferred (maximum gap between roots ≤90 degrees), Acceptable (maximum gap 120–150 degrees), and Inferior (≥180 degree gap—no lateral roots on one side). The lateral root configuration (LRC) of the seedlings was compared to the LRC one year after replanting. The number of lateral or regenerated roots alone was

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Fang, Xilin, Peng Liu, Abdul Wahab, Yue Wang, and Guanghui Chen. "Delayed Sowing under the Same Transplanting Date Shortened the Growth Period of Machine-Transplanted Early-Season Rice with No Significant Yield Reduction Caused." Agronomy 13, no. 11 (2023): 2748. http://dx.doi.org/10.3390/agronomy13112748.

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In early rice cultivation, the age of seedlings plays a crucial role in ensuring the annual safety production of double-cropping rice. When sowing staging and transplanting are performed simultaneously, it is still necessary to gather more data about the effects of seedling age on the growth period and grain yield of early rice machines transplanted. Two years ago, field experiments were conducted on machine-transplanted rice seedlings in the early season to compare the growth duration, crop growth characteristics, and yield attributes between the 18-day-old seedlings (SA18) and 32-day-old see

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14

Gorim, Linda, and Folkard Asch. "Seed coating reduces respiration losses and affects sugar metabolism during germination and early seedling growth in cereals." Functional Plant Biology 42, no. 2 (2015): 209. http://dx.doi.org/10.1071/fp14142.

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Seed germination and the successful establishment of young seedlings is an important aspect of plant life. Seed coats are used to improve stand establishment and early seedling vigour. Seedlings growing from hydro-absorber coated barley, rye and wheat with coat-shares greater than 75% of the average seed have been shown to promote better seedling growth compared with those seedlings growing from uncoated seeds. We investigated how and why these seedlings performed better by analysing the proportion of grain reserves mobilised for growth and respiration as well as how both sucrose and glucose a

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15

Sarıkamış, Gölge, Arda Yıldırım, and Didem Alkan. "Glucosinolates in seeds, sprouts and seedlings of cabbage and black radish as sources of bioactive compounds." Canadian Journal of Plant Science 95, no. 4 (2015): 681–87. http://dx.doi.org/10.4141/cjps-2014-412.

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Sarıkamış, G., Yıldırım, A. and Alkan, D. 2015. Glucosinolates in seeds, sprouts and seedlings of cabbage and black radish as sources of bioactive compounds. Can. J. Plant Sci. 95: 681–687. The glucosinolate content of seeds, sprouts and seedlings of white head cabbage and black radish were analyzed in order to determine changes in aliphatic and indole glucosinolates during seed germination and early seedling growth. Both species with distinct glucosinolate profiles exhibited higher levels of aliphatics and to a much lesser extent indoles. Glucosinolate content decreased in germinating seeds a

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16

Xu, Shengyong, Yi Zhang, Wanjing Dong, Zhilong Bie, Chengli Peng, and Yuan Huang. "Early Identification and Localization Algorithm for Weak Seedlings Based on Phenotype Detection and Machine Learning." Agriculture 13, no. 1 (2023): 212. http://dx.doi.org/10.3390/agriculture13010212.

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It is important to propose the correct decision for culling and replenishing seedlings in factory seedling nurseries to improve the quality of seedlings and save resources. To solve the problems of inefficiency and subjectivity of the existing traditional manual culling and replenishment of seeds, this paper proposes an automatic method to discriminate the early growth condition of seedlings. Taking watermelon plug seedlings as an example, Azure Kinect was used to collect data of its top view three times a day, at 9:00, 14:00, and 19:00. The data were collected from the time of germination to

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17

Thomson, J., U. Matthes-Sears, and R. L. Peterson. "Effects of seed provenance and mycorrhizal fungi on early seedling growth in Piceamariana." Canadian Journal of Forest Research 20, no. 11 (1990): 1739–45. http://dx.doi.org/10.1139/x90-231.

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The importance of provenance and fungal species effects on mycorrhiza formation in Piceamariana was determined. Seed was collected from two sites near Chapleau, Ontario. One provenance was collected from an upland site with sandy soil, the second from a lowland site with peaty soil. Seedlings were grown under aseptic conditions in test tubes. Two experiments were performed: in the first, seedlings were inoculated with Hebelomacylindrosporum, Laccarialaccata, or Paxillusinvolutus, whereas in the second, seedlings were inoculated with Laccariabicolor, Laccarialaccata, Laccariaproximo or noninocu

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18

Lopez, P. J. S., and C. K. Chandler. "Nursery Selection for High Early Fruit Yield in Subtropical Strawberries." HortScience 32, no. 3 (1997): 548E—549. http://dx.doi.org/10.21273/hortsci.32.3.548e.

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Development of new strawberry cultivars for winter fruit production in Florida entails growing of hybrid seedlings in a nursery in the summer of the first year for runner plant production. Two runner plants are taken from each seedling and planted in the fruiting field in the fall. An experiment was conducted to see if it is possible to predict which genotypes in the nursery will have the highest early season fruit yield. Seedlings from 24 families from a 6 × 4 factorial mating design were grown in a nursery. From each family, daughter plants of 20 seedlings with the highest vigor and 20 rando

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19

Dang, Xuan Thi Le, Thuy Hang Phan Thi, That Phap Ton, Cong Tin Hoang, and Quang Doc Luong. "Effects of salinity on seedling gemination and growth of early seedlings of the \(\textit{Najas indica}\) (Willd.) Cham." Tạp chí Khoa học và Công nghệ Biển 22, no. 2 (2022): 199–207. http://dx.doi.org/10.15625/1859-3097/17075.

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Najas indica (Willd.) Cham. is a freshwater submerged aquatic vegetation. N. indica is an annual plant. Therefore, seeds in the sediment and the survival and growth of seedlings play an important role in re-establishing new populations of the species. The purpose of this study was to determine the seed density in the sediment, examine the effect of salinity on seedling germination from seeds, and assess the impact of the salinity on the growth of early seedlings of N. indica under the experimental condition. The seed density of N. indica was highest from September to November and the lowest in

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20

Saani, Chinwe I., Joshua Kayode, Benson O. Ademiluyi, and M. Yoserizal Saragih. "Effect of Growth Media on Plumule Emergence and Early Seedling Growth of Monodora myristica." Budapest International Research in Exact Sciences (BirEx) Journal 2, no. 4 (2020): 436–42. http://dx.doi.org/10.33258/birex.v2i4.1257.

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The study investigated the emergence and early seedling development of Monodora myristica in six different growth media viz: mixture of river sand/top soil, river sand/saw dust, top soil/saw dust, saw dust only, top soil only and river sand only. Results obtained recorded highest percentage germination (63%) in seeds sown in saw dust only. Early seedling growth was observed for four months. The results of this study showed that seedlings sown in mixture of top soil/saw dust recorded highest mean plant height (16.83cm), stem girth ( 2.50mm), and leaf area (46.18cm2) at the end of the experiment

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21

Montagnoli, Antonio, Donato Chiatante, Anastazija Dimitrova, Mattia Terzaghi, Jeremiah R. Pinto, and R. Kasten Dumroese. "Early pine root anatomy and primary and lateral root formation are affected by container size: implications in dry-summer climates." REFORESTA, no. 12 (January 5, 2022): 20–34. http://dx.doi.org/10.21750/refor.12.04.96.

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Although the presence of root anatomical structures of young Pinus ponderosa seedlings grown in containers of contrasting volume (164 vs. 7000 cm3) was similar, seedlings reared 60 days in the large container had more vascular cambium although the xylem thickness was similar. In addition, seedlings in large containers had nearly twice as many resin ducts within the vascular cambium as their cohorts in small containers. Taproot length closely matched container depth. Though lateral root emission rates were similar between container sizes, large container seedlings had more than 2X the number of

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22

Jay, Mark G. Cortado. "Early growth of Syzygium tripinnatum (Blanco) Merr. seedlings inoculated with biofertilizers under nursery condition." Journal of Biodiversity and Environmental Sciences (JBES) 22, no. 4 (2023): 175–84. https://doi.org/10.5281/zenodo.10426626.

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The early growth of <em>Syzygium tripinnatum </em>(Blanco) Merr. seedlings applied with biofertilizer inoculants was evaluated under nursery condition at the Don Mariano Marcos Memorial State University, La Union, Philippines. This study generally aimed to recommend a biofertilizer inoculation protocol for <em>S. tripinnatum</em> seedlings for the production of its quality planting materials. Three treatments were used: T<sub>0</sub>– Uninoculated (Control), T<sub>1</sub>– Mycogroe, and T<sub>2</sub>– Mykovam. Results revealed that the height, diameter and

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23

Frampton, John, Bailian Li, and Barry Goldfarb. "Early Field Growth of Loblolly Pine Rooted Cuttings and Seedlings." Southern Journal of Applied Forestry 24, no. 2 (2000): 98–105. http://dx.doi.org/10.1093/sjaf/24.2.98.

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Abstract Early growth and fusiform rust resistance of loblolly pine (Pinus taeda L.) rooted cuttings and seedlings from the same nine full-sib families established on two sites (Nassau Co., FL and Monroe Co., AL) were compared. Although site effects on growth were large, height, diameter and volume growth of the rooted cuttings and seedlings did not differ through the first six growing seasons in the field (with the exception of first year height growth at the Florida site). Fusiform rust (caused by Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme [Cumm.] Burds. et Snow) incidence

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He, Jun Yu, Yan Fang Ren, Yin Fei Lv, and Hui Qing Chang. "Cadmium Impairs Early Seedling Growth, Mineral and Carbohydrate Mobilization during the Germination of Rice Seeds." Advanced Materials Research 864-867 (December 2013): 243–47. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.243.

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Cadmium (Cd) is an environmental pollutant extremely toxic to plants and other living organisms including humans. To assess Cd phytotoxicity, the seedling growth, mineral (K, Fe, Zn) and carbohydrate contents and hydrolase activities in the endosperm and seedlings during rice seed germination subjected to Cd stress were investigated. The results showed that Cd caused a reduction in seedling growth and distribution of biomass, mineral contents, compared to the control. Cd accumulation in seedlings increased in the duration of treatment. Cd exposure caused a deleterious fall in mineral nutrient

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Zhang, Shitao, Jiaqi Yang, Linnan Ouyang, and Shaoxiong Chen. "The Effect of Soaking Root Fertilizer on Promoting the Seedling Early Growth and Root Development of Eucalyptus urograndis." Forests 14, no. 10 (2023): 2013. http://dx.doi.org/10.3390/f14102013.

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We examined the feasibility of applying soaking root fertilizer to Eucalyptus urograndis seedlings by dipping the roots, and the effectiveness of the method for improving the overall growth quality of the seedlings by affecting root growth. The seedlings of E. urograndis in the Southern National Forest Seedling Demonstration Base in China were dipped with seven kinds of soaking root fertilizer formulas, while another group of clear water was set as a control. We regularly investigated the relationship between root traits and other seedling traits, and the formulas conducive to the high-quality

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26

Bumgarner, Mindy L., K. Francis Salifu, and Douglass F. Jacobs. "Subirrigation of Quercus rubra Seedlings: Nursery Stock Quality, Media Chemistry, and Early Field Performance." HortScience 43, no. 7 (2008): 2179–85. http://dx.doi.org/10.21273/hortsci.43.7.2179.

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Container seedling production systems for forest tree nurseries are challenged by the need for judicious water consumption. Subirrigation systems may provide an alternative to overhead systems by mitigating water use, yet remain relatively untested for propagation of forest tree seedlings. We evaluated effects of overhead versus subirrigation under varying media (40:60, 60:40, and 80:20 peat:perlite) and fertilization (0 or 1.2 g nitrogen/plant) regimes on nursery development and first-year field performance of northern red oak (Quercus rubra L.) seedlings. Fertilization increased aboveground

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27

Ancha, Paul U., Onyekachi Chukwu, Caleb I. Ezeano, Maryprecious A. Udekwe, and Francisca C. Iheme. "Effect of growth media on the early performance of Prosopis africana (Guill. and Perr.) Taub. seedlings." European Journal of Biological Research 10, no. 3 (2020): 257–62. https://doi.org/10.5281/zenodo.3980933.

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This study examined the performance of <em>Prosopis africana </em>seedlings raised under different growth media. The experiment was laid in a completely randomized design with three treatments (topsoil, mixture of topsoil and poultry droppings, and mixture of topsoil and cow dung). Each treatment was replicated 4 times and each replicate had 10 potted seedlings making a total of 120 seedlings. The seedling growth variables; heights (cm) collar diameters (cm), number of leaves data were collected every 3 days for 12 weeks. The data collected were subjected to analysis of variance and significan

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Morgan, JW. "Ecological Studies of the Endangered Rutidosis leptorrhynchoides. II. Patterns of Seedling Emergence and Survival in a Native Grassland." Australian Journal of Botany 43, no. 1 (1995): 13. http://dx.doi.org/10.1071/bt9950013.

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The emergence, survival and growth of seedlings of the endangered Rutidosis leptorrhynchoides F.Muell. were followed in a Themeda triandra grassland during 1991 and 1992. The effect of summer irrigation on seedling survival was also investigated. Seedling emergence occurred in both years within 2 weeks of the 'autumn break' when soil moisture rose above 20%. Ninety percent of emergence was observed within 4 weeks of the onset of germination and 87% of seedlings were within 20 cm of an established plant. No emergence was observed after 8 weeks. Thirteen percent of the 1991 cohort survived for 1

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Haeussler, Sybille, John C. Tappeiner II, and Brian J. Greber. "Germination, survival, and early growth of red alder seedlings in the central Coast Range of Oregon." Canadian Journal of Forest Research 25, no. 10 (1995): 1639–51. http://dx.doi.org/10.1139/x95-178.

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Effects of forest disturbance and soil moisture levels on establishment of red alder (Alnusrubra Bong.) seedlings were studied at four sites representing a climatic moisture gradient within the central Coast Range of Oregon. On average, there was no difference in seedling emergence between recent clearcuts and second-growth forests, but emergence was much higher on mineral soil than on organic seedbeds. Emergence, on both types of seedbed, was positively correlated with spring soil moisture conditions (R2 = 0.60). Seedling survival, on the other hand, differed greatly between clearcut and fore

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Kojwang, H. O., and B. J. van der Kamp. "Early symptoms and resistance of lodgepole pine seedlings inoculated with western gall rust." Canadian Journal of Botany 70, no. 6 (1992): 1274–78. http://dx.doi.org/10.1139/b92-160.

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One-year-old seedlings in 10 open-pollinated Pinus contorta families were inoculated with spores of the rust fungus Endocronartium harknessii at two stages of seedling maturity and two levels of inoculum concentration. The early symptoms (general red stain, red flecks, red streaks) that appeared on the seedlings were recorded 2, 4, and 8 weeks after inoculation, while the number of galls was recorded 1 year after inoculation. The frequency of general red stain and red flecks varied significantly among families. Resistance of families as percent of seedlings producing galls also varied signific

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Luo, Yonghong, Jinfeng Zhang, Xingfu Yan, et al. "Response of Seedling Growth Characteristics to Seed Size and Cotyledon Damage in Quercus wutaishanica." Forests 14, no. 9 (2023): 1905. http://dx.doi.org/10.3390/f14091905.

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The successful establishment of seedlings is very important for plant regeneration, but it is vulnerable to many factors at this stage. Cotyledon damage will directly affect the health of seedlings, thus affecting the regeneration of the plant population. However, little is known about the effects of different cotyledon loss degrees of large and small seeds on seedling growth. We investigated the effects of 1/4 (light excision), 1/2 (moderate excision), and complete excision of cotyledons (heavy excision) on the growth characteristics of seedlings germinating from different sizes of seeds. The

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MacDonald, Joanne E., and John N. Owens. "Morphology, Physiology, Survival, and Field Performance of Containerized Coastal Douglas Fir Seedlings Given Different Dormancy-induction Regimes." HortScience 41, no. 6 (2006): 1416–20. http://dx.doi.org/10.21273/hortsci.41.6.1416.

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The effects of different dormancy-induction regimes on first-year containerized coastal Douglas fir [Pseudotsuga menziesii (Mirb.) Franco var. menziesii] seedling morphology and physiology in the nursery, as well as seedling survival and performance after one growing season in a common garden, were investigated. In early July, three dormancy-induction regimes were applied: moderate moisture stress (MS), short day (SD), and short day with moderate moisture stress (SD+MS). In early October, seedling height, root collar diameter, and shoot dry weight were unaffected by regime, but root dry weight

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Li, Jian, and Xiuhai Zhao. "Modification of Density Dependence and Habitat Filtering on Seedling Survival of Different Mycorrhizal-Type Tree Species in Temperate Forests." Forests 14, no. 9 (2023): 1919. http://dx.doi.org/10.3390/f14091919.

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Conspecific negative density dependence (CNDD) and habitat filtering are critical to seedling survival. However, the relative importance of the two processes in affecting survival of seedlings with different types of mycorrhizae remains unclear. In this study, the effects of CNDD and habitat filtering on the survival of tree seedlings with different mycorrhizal types were investigated at different successional stages of a temperate forest in the Changbai Mountain Natural Reserve, Northeast China. Conspecific negative density dependence and habitat filtering significantly affected seedling surv

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Rostad, Halvor, Aksel Granhus, Inger Sundheim Fløistad, and Svein Morgenlie. "Early summer frost hardiness in Picea abies seedlings in response to photoperiod treatment." Canadian Journal of Forest Research 36, no. 11 (2006): 2966–73. http://dx.doi.org/10.1139/x06-167.

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According to previous studies, short-day (SD) treatment may increase frost hardiness in Picea abies (L.) Karst. seedlings during shoot elongation the next year. The purpose of this study was to examine how timing of the SD treatment affects spring frost hardiness. The following four treatments were applied in the first growth period: natural photoperiod (Nat), or SD treatment (8 h light : 16 h dark) either 14–28 July (SD1), 28 July – 11 August (SD2), or 11–20 August (SD3). After 125 days in cold storage (October–January), the seedlings were transferred to forcing conditions (20–25 °C, 24 h lig

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Brigard, Juan P., Richard L. Harkess, and Brian S. Baldwin. "Tomato Early Seedling Height Control Using a Paclobutrazol Seed Soak." HortScience 41, no. 3 (2006): 768–72. http://dx.doi.org/10.21273/hortsci.41.3.768.

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Tomato seedling hypocotyls elongate rapidly after germination resulting in weak seedlings. The effects of 0, 250, 500, 750, or 1000 mg paclobutrazol (PB)/L seed soak and soaking times from 1 to 12 hours on tomato (Solanum lycopersicum L.) seed germination, seedling growth, and plant growth were tested. Adequate height control was obtained with 250 mg PB/L while soaking time did not affect seedling growth. In a second experiment, PB was tested at 0, 50, 100, 150, 200, or 250 mg PB/L soaking the seed for 1 hour. A concentration of PB at 100 mg·L–1 provided optimum control of hypocotyl elongation

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Li, Qiang, Pujia Yu, Xiaoying Chen, Guangdi Li, Daowei Zhou, and Wei Zheng. "Facilitative and Inhibitory Effect of Litter on Seedling Emergence and Early Growth of Six Herbaceous Species in an Early Successional Old Field Ecosystem." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/101860.

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In the current study, a field experiment was conducted to examine effects of litter on seedling emergence and early growth of four dominant weed species from the early successional stages of old field ecosystem and two perennial grassland species in late successional stages. Our results showed that increased litter cover decreased soil temperature and temperature variability over time and improved soil moisture status. Surface soil electrical conductivity increased as litter increased. The increased litter delayed seedling emergence time and rate. The emergence percentage of seedlings and esta

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Duryea, Mary L., and Steven K. Omi. "Top pruning Douglas-fir seedlings: morphology, physiology, and field performance." Canadian Journal of Forest Research 17, no. 11 (1987): 1371–78. http://dx.doi.org/10.1139/x87-212.

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Seedlings from nine Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) seed sources were top pruned at six nurseries in the Pacific Northwest and then planted at field sites in their own seed zones and on one common site. Seedlings pruned tall (25 cm) and early in the growing season flushed again about 5 weeks after pruning and set bud 2 weeks later than unpruned controls. Nursery yield (number of shippable seedlings) was the same for tall–early pruned and control seedlings; however, pruning increased the number of seedlings with multiple leaders from 10 to 38%. Pruned seedlings were smaller th

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Gebirehiwot, Hana Tamrat. "Review on Factors Affecting Early Survival of Tree /Shrub Seedlings and it’s Remedy in Restoration Sites of Ethiopia." Journal of Landscape Ecology 16, no. 1 (2023): 128–48. http://dx.doi.org/10.2478/jlecol-2023-0007.

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Abstract Restoration activities in degraded and/or deforested forest landscapes are common and old occurrences around the world. Tree planting is common in most forest landscape restoration initiatives. In Ethiopia, eight seedling-based landscape restoration options are identified to alleviate land degradation and its consequences. The primary purpose of this work was to review factors affecting the early survival of tree and shrub seedlings and their remedies in the restoration sites of Ethiopia. Drought and moisture stress, low soil fertility, poor seedling quality, weak species site matchin

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Shalaby, Tarek A., Naglaa A. Taha, Dalia I. Taher, et al. "Paclobutrazol Improves the Quality of Tomato Seedlings to Be Resistant to Alternaria solani Blight Disease: Biochemical and Histological Perspectives." Plants 11, no. 3 (2022): 425. http://dx.doi.org/10.3390/plants11030425.

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The production and quality of tomato seedlings needs many growth factors and production requirements besides controlling the phytopathogens. Paclobutrazol (PBZ) has benefit applications in improving crop productivity under biotic stress (Alternaria solani, the causal agent of early blight disease in tomatoes). In the current study, the foliar application of PBZ, at rates of 25, 50, and 100 mg L−1, was evaluated against early blight disease in tomatoes under greenhouse conditions. The roles of PBZ to extend tomato seedling lives and handling in nurseries were also investigated by measuring diff

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Zhang, Yiting, Hao Dong, Shiwei Song, Wei Su, and Houcheng Liu. "Morphological and Physiological Responses of Cucumber Seedlings to Supplemental LED Light under Extremely Low Irradiance." Agronomy 10, no. 11 (2020): 1698. http://dx.doi.org/10.3390/agronomy10111698.

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In order to inhibit spindling growth and improve quality of cucumber seedlings under low irradiance, effects of supplemental light-emitting diodes (LED) light (SL) on morphological and physiological characteristics of cucumber seedlings at different growth stages under extremely low irradiance (ELI) were investigated. Supplementary monochromatic, dichromatic and trichromatic LED light on cucumber seedlings were conducted in experiment one, and supplements of combination ratios and intensity of blue and red LED light (RB) were conducted in experiment two. The morphological and physiological par

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Castro, David, Andreas N. Schneider, Mattias Holmlund, Torgny Näsholm, Nathaniel R. Street, and Vaughan Hurry. "Effects of Early, Small-Scale Nitrogen Addition on Germination and Early Growth of Scots Pine (Pinus sylvestris) Seedlings and on the Recruitment of the Root-Associated Fungal Community." Forests 12, no. 11 (2021): 1589. http://dx.doi.org/10.3390/f12111589.

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Scots pine (Pinus sylvestris L.) is one of the most economically important species to the Swedish forest industry, and cost-efficient planting methods are needed to ensure successful reestablishment after harvesting forest stands. While the majority of clear-cuts are replanted with pre-grown seedlings, direct seeding can be a viable option on poorer sites. Organic fertilizer has been shown to improve planted seedling establishment, but the effect on direct seeding is less well known. Therefore, at a scarified (disc trencher harrowed) clear-cut site in northern Sweden, we evaluated the effect o

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MORAR, Irina M., Alina M. TRUTA, Roxana L. STOIAN-DOD, et al. "Responses of silver fir (Abies alba Mill.) seedlings from different geographical locations to low temperature stress." Nova Geodesia 3, no. 4 (2023): 136. http://dx.doi.org/10.55779/ng34136.

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Climate change has exacerbated difficulties for both the environment and humans in recent years, with major consequences on the resilience and ecological diversity of forests, including those of silver fir (Abies alba Mill.). Because cold stress is an important challenge to silver fir seedling growth, particularly in the early phases of development, the goal of this study was to find potential genetic resources with appropriate responses to the action of low temperatures. Thus, traits of interest were studied in the early stage of seedlings from seven different Romanian provenances. Soil elect

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Blain, Dominique, and Martin Kellman. "The effect of water supply on tree seed germination and seedling survival in a tropical seasonal forest in Veracruz, Mexico." Journal of Tropical Ecology 7, no. 1 (1991): 69–83. http://dx.doi.org/10.1017/s0266467400005101.

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ABSTRACTIn Iropical seasonal forests, mass seedling death may incidentally occur early in the rainy season following untimely germination provoked by an isolated heavy rainfall. We hypothesized that, in a soil with little moisture retention capacity, irregular rainfall patterns would result in large fluctuations of water supply and, in the early wet season, drought episodes could cause seedling death. This hypothesis was tested in a seasonal tropical forest in Mexico where seedling density is low and the soil consists of almost pure sand with a low water retention capacity. Various patterns of

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Larsen, Harry S., David B. South, and James N. Boyer. "Foliar Nitrogen Content at Lifting Correlates with Early Growth of Loblolly Pine Seedlings from 20 Nurseries." Southern Journal of Applied Forestry 12, no. 3 (1988): 181–85. http://dx.doi.org/10.1093/sjaf/12.3.181.

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Abstract Height growth of outplanted loblolly pine seedlings was monitored over a 3-year period. Growth of seedlings from 20 nurseries was correlated with initial seedling characteristics from paired samples. Height growth during the first 6 months after planting was negatively correlated with the initial seedling height and shoot/root ratio and was positively correlated with root growth potential (RGP) and root weight. However, these variables were not significantly correlated with later growth. Foliar nitrogen content (mg of foliar nitrogen per seedling) was positively correlated with both i

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Islam, M. S., M. N. N. Mazumder, T. Sarmin, M. I. Ali, M. S. Hossain, and S. M. A. Chowdhury. "Assessing boro rice yield variances across varied seedling ages to address early flash flood vulnerabilities in the Haor area of Bangladesh." Bangladesh Journal of Nuclear Agriculture 38, no. 1 (2024): 41–52. http://dx.doi.org/10.3329/bjnag.v38i1.76564.

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Haor is one of the most flood-prone areas of Bangladesh and it underlies in water for several months of a year. Boro rice cultivation in this area is challenging due to the flash flood. An experiment was conducted to examine the suitability and productivity of four rice varieties transplanted in different seedling ages. This experiment was carried out at Sunamganj district for two consecutive years of Boro season in 2021-22 and 2022-23. Four Boro rice varieties namely Binadhan-10, Binadhan-17, Binadhan-24, BINA dhan25, and three seedling ages (i.e., 30, 35 and 40 days old seedlings) were used

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Rajametov, Sherzod Nigmatullaevich, Eun Young Yang, Myeong Cheol Cho, Soo Young Chae, and Hyo Bong Jeong. "Screening of pepper (Capsicum l.) seedlings tolerance to low temperature." Agrarian Scientific Journal, no. 11 (November 23, 2020): 78–82. http://dx.doi.org/10.28983/asj.y2020i11pp78-82.

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This study was conducted on screening for 21 pepper genotypes tolerant to low temperature and their duration for survival in 3-4 (38 days after sowing), and 4-6 (47 days after sowing) true leaf seedling growth stages (LS). It was detected that response of seedlings on low temperature were different and ranged among the genotypes depends on growth stages. Seedlings in early 3-4 LS growth stage were more susceptible than 4-6 LS seedlings, where the first symptoms of leaf cold damages (LCD) were revealed within 7 days after transplanting (DAT) and 12 DAT in pepper seedlings, respectively. There w

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Roberts, Jessica J., and Janusz J. Zwiazek. "Growth, morphology, and gas exchange in white spruce (Picea glauca) seedlings acclimated to different humidity conditions." Canadian Journal of Forest Research 31, no. 6 (2001): 1038–45. http://dx.doi.org/10.1139/x01-043.

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The study examined the effects of different relative humidity conditions at germination, early growth, and following cold storage on morphological and physiological characteristics of white spruce (Picea glauca (Moench) Voss) seedlings. Seedlings that were grown for 18 weeks following seed germination at the lower, 30% RH (RHinitial) treatments were shorter and had smaller stem diameters, shorter needles with more epicuticular wax, and a greater density of needles per centimetre stem, compared with the 80% RHinitial seedlings. After 18 weeks of growth under 30, 50, and 80% RH, the seedlings we

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Moreno-Alías, Inmaculada, Hava F. Rapoport, Rafael López, Lorenzo León, and Raúl de la Rosa. "Optimizing Early Flowering and Pre-selection for Short Juvenile Period in Olive Seedlings." HortScience 45, no. 4 (2010): 519–22. http://dx.doi.org/10.21273/hortsci.45.4.519.

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In recent years, the juvenile period of olive seedlings has been reduced by diverse forcing and pruning-formation techniques, but it is still a major drawback for breeding. Plant height at the time when seedlings are transplanted to the field has been found effective for obtaining earlier flowering, but the value of this parameter varies widely among olive breeding programs. We evaluated different transplant dates, taking into account mean plant height and age, with the aim of determining the optimum parameters for achieving early flowering and easy plant management and, at the same time, for

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Castro, Jorge, and Alexandro Leverkus. "Effect of Herbaceous Layer Interference on the Post-Fire Regeneration of a Serotinous Pine (Pinus pinaster Aiton) across Two Seedling Ages." Forests 10, no. 1 (2019): 74. http://dx.doi.org/10.3390/f10010074.

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Herbaceous vegetation is a major source of interference with the regeneration of woody species. This is particularly the case after forest fires, as a dense herbaceous layer usually regenerates naturally. Although the competitive effect of the herbaceous vegetation upon tree seedlings has been widely studied, there are still gaps in knowledge for management related to the effect of tree seedling age and size on the outcome of the interaction. In this study, we seek to determine the response of maritime pine (Pinus pinaster Aiton) seedlings to herbaceous competition at two different seedling ag

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Krasowski, M. J., and J. N. Owens. "Morphological and physiological attributes of root systems and seedling growth in three different Picea glauca reforestation stock." Canadian Journal of Forest Research 30, no. 11 (2000): 1669–81. http://dx.doi.org/10.1139/x00-093.

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The relationship between certain morphological characteristics of white spruce (Picea glauca (Moench) Voss) planting stock (STK) and post-planting seedling performance was evaluated. Root system size at planting, its expansion, and its capacity to conduct water during the first post-planting weeks were determined. These characteristics were related to the performance of STK planted on two forest sites and measured for three growing seasons and to the performance of seedlings grown in large wooden boxes buried in the soil outdoors for one growing season (grown without competition from other veg

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