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Journal articles on the topic 'Seedling Roots'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Herr, DG, LC Duchesne, R. Tellier, RS Mcalpine, and RL Peterson. "Effect of Prescribed Burning on the Ectomycorrhizal Infectivity of a Forest Soil." International Journal of Wildland Fire 4, no. 2 (1994): 95. http://dx.doi.org/10.1071/wf9940095.

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Ectomycorrhizae formation, seedling health index, and seedling survival were assessed for two-year-old nursery-grown seedlings of Pinus resinosa and Pinus strobus two months after planting in clear-cuts that had received prescribed burning under different fire intensities. Controls consisted of seedlings planted in unburned clear-cuts. Fire intensity positively correlated with percent ectomycorrhizal roots for P. strobus but not for P. resinosa. Seedling health index and survival were highest in burned-over sites as compared to control sites for both pine species. Fire intensity correlated wit

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2

Sucoff, Edward, Cindy Buschena, and Perry Tamte. "Desiccation and water potentials in the roots, leaves, and shoots of bare-root red pine and white spruce." Canadian Journal of Forest Research 15, no. 5 (1985): 989–92. http://dx.doi.org/10.1139/x85-157.

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Bare-root seedlings of red pine (Pinusresinosa Ait.) and white spruce (Piceaglauca (Moench) Voss) were dried in various controlled situations before measurement of water potential (ψ) and moisture contents. For each situation, root ψ was directly proportional to and highly correlated with shoot ψ. The regression lines did not vary with environment for fully exposed seedlings within a seedling lot. Regressions did differ between seedling lots and between seedlings that had roots only, shoots only, or both roots and shoots exposed. Since the differences between root and shoot ψ were sometimes la

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3

Negi, Pitamber, Sandeep Sharma, and Neha Thakur. "Effects of root pruning on seedling growth and other parameters in Juniperus polycarpos under nursery condition." Indian Journal of Forestry 45, no. 4 (2023): 185–89. http://dx.doi.org/10.54207/bsmps1000-2023-0e87gv.

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A nursery trial was conducted to study the effects of root pruning on the seedling growth and other parameters of Juniperus polycarpos. Roots of two-year-old seedlings of J. polycarpos were pruned at different levels and transplanted in polybags of size 9’’ × 5” filled with potting media comprising soil, sand, and farm yard manure (2:1:1). Maximum growth of various seedling parameters, viz., shoot length (42.90 cm), root length (38.40 cm), collar diameter (6.16 mm), number of roots (45.93) and biomass, viz., fresh shoot biomass (24.03 g), fresh root biomass (6.35 g), total fresh biomass (30.38

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4

Flasiński, Stanisław, Janina Rogozińska, and Lucyna Drozdowska. "The effect of phosphours and water deficit on phosphatase activity and proline accumulation in seedling cotyledons and roots of oilseed rape as compared to that of excised cotyledons and roots." Acta Societatis Botanicorum Poloniae 55, no. 1 (2014): 83–96. http://dx.doi.org/10.5586/asbp.1986.010.

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Oilseed rape seedlings and excised cotyledons and roots were exposed to phosphorus and osmotic stress (-1 MPa: NaCl or PEG). The stress factors limited the growth of the seedlings and inhibited the growth of the excised roots and cotyledons. The phosphorus content in the cotyledons and roots depended on its level in the media and on the stress factors used. Phosphorus deficiency differentiated total phosphatase activity in seedling cotyledons and increased the activity in the excised cotyledons. In the excised and seedling roots, the lack of phosphorus, its deficiency and stress imposed by the

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5

Amador, Talita Silveira, and Claudio José Barbedo. "Germination inhibits the growth of new roots and seedlings in Eugenia uniflora and Eugenia brasiliensis." Journal of Seed Science 37, no. 3 (2015): 241–47. http://dx.doi.org/10.1590/2317-1545v37n3150595.

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Abstract:Seeds of Eugenia species can produce new roots and whole plants even when much of its reserves is removed. However, new roots and seedlings rarely are formed spontaneously, and after cutting, each seed fragment usually produces only one new seedling, suggesting some control of the formation of several seedlings. It is possible, therefore, that germination leads to the production of inhibitory substances avoiding the development of new embryonic tissues. In the present work we have analyzed the potential of germinating seeds of Eugenia uniflora and Eugenia brasiliensisto inhibit new ro

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6

Ekamawanti, Hanna Artuti, Lenawati Simanjuntak, and Abdurrani Muin. "Assessment of the Physical Quality of Eucalyptus pellita Seedlings from Shoot Cutting by Age Level." Jurnal Sylva Lestari 9, no. 2 (2021): 280. http://dx.doi.org/10.23960/jsl29280-290.

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The criteria for target seedling of Eucalyptus pellita F. Muell are at least 90days old, with consequences for the length of stay of the seedlings in the nursery. This study must assess the suitability as a target seedling first if it wants to plant the seedlings under 90days old in the field. The research aimed to evaluate and obtain the regression equation for the seedling’s age with the seedling’s morphological characters. The shoot seedlings cuttings aged 45, 60, 75, and 90 days after planting in the cocopeat growing medium were assessed. The study was used a survey method with a purposive

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7

ROUHANI, IRAJ, C. C. BLACK JR., H. MAX VINES, and P. P. KORMANIK. "EFFECT OF NUMBER OF LATERAL ROOTS ON EGGPLANT GROWTH AND YIELD." Canadian Journal of Plant Science 67, no. 1 (1987): 305–13. http://dx.doi.org/10.4141/cjps87-044.

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Root characteristics of eggplant (Solanum melongena L. ’Black Beauty’) were studied with the objectives of determining (1) the population distribution of number of lateral roots per seedling and (2) the relationship between the number of lateral roots per seedling on growth and fruit production. The number of lateral roots ranged from 1 to 34 per seedling with a mean of 12.7 for the total population (600 seedlings). The seedlings were separated into three groups based on the number of lateral roots: A, 20–34; B, 10–19; and C, 1–9. Seedlings of each root group were transplanted outdoors and gro

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8

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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9

Zhang, Jianhua, and M. A. Maun. "Effects of partial removal of seed reserves on some aspects of seedling ecology of seven dune species." Canadian Journal of Botany 69, no. 7 (1991): 1457–62. http://dx.doi.org/10.1139/b91-188.

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Greenhouse studies were conducted to determine the effects of partial removal of endosperm or cotyledons from seeds of seven dune species on seed germination, seedling emergence, seedling size, and dry matter allocation. Different proportions (0, 30, and 60%) were surgically removed from seeds of Agropyron psammophilum, Calamovilfa longifolia, Elymus canadensis, Leymus arenarius, Panicum virgatum, Lupinus perennis, and Strophostyles helvola. Partial removal of seed reserves caused a significant reduction in seedling variables 1 or 2 weeks after planting in sand. For example, seedling height, l

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10

Diebel, Kenneth E., and Peter P. Feret. "Using Fractal Geometry to Quantify Loblolly Pine Seedling Root System Architecture." Southern Journal of Applied Forestry 17, no. 3 (1993): 130–34. http://dx.doi.org/10.1093/sjaf/17.3.130.

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Abstract Fractal geometry is a simple method of quantifying and describing complex shapes often found in nature (Mandelbrot 1983). The spatial arrangement of pine seedling roots is complex and not easily quantified. In this paper we report on a method for quantifying seedling roots based on concepts of fractal geometry. Ten 1+0 bareroot seedlings of each of three grades of loblolly pine (Pinus taeda L.) were obtained from two Virginia Department of Forestry nurseries. The fractal dimension (D) was estimated for seedling roots using a computer-based box-count method. The results show that pine

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11

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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12

Buraczyk, Włodzimierz, and Magdalena Kapuścińska. "Effects of pruning of vertical roots on growth of one-year Scots pine (Pinus sylvestris L.) seedlings in the first year after transplanting." Folia Forestalia Polonica, Series A - Forestry 52(1) (March 1, 2010): 26–32. https://doi.org/10.5281/zenodo.30616.

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The research was carried out in 2006 within the area of forest nursery in Okalewo, the Forest Inspectorate Skrwilno (Central Poland, at 53º02´N, 19º23´E). The aim of the study was to determine the effects of root pruning in one-year Scots pine seedlings (Pinus sylvestris L.) on their growth after transplanting. The vertical roots of one-year Scots pine seedlings were pruned to the length of 5, 10, 15 i 20 cm and measured. The scope of measurements included: stem length and thickness, total root length, root length within thickness classes, surface root area, root volume a

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13

Kubar, Ishtiaque Hussain, Noor un nisa Memon, Naseem Sharif, et al. "COMPARATIVE STUDY OF ROOTSTOCKS AND THEIR EFFECTS ON STIONIC ESTABLISHMENT OF THE MANGO SEEDLINGS." Pakistan Journal of Biotechnology 20, no. 02 (2023): 146–52. http://dx.doi.org/10.34016/pjbt.2023.20.02.778.

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To explore the quality rootstock which impart better stionic establishment of the mango seedlings, we studied the comparative effect of scion and rootstock using three mango scion varieties (Sindhri, Chaunsa and Neelum) grafted on three rootstocks i.e. Ratam, Pado and Sindhri. Parameters including seed germination (%), seedling height (cm), leaves seedling rootstock-1, seedling vigor index (SVI), fresh biomass of shoot and roots (g), dry biomass of shoot and roots (g), chlorophyll content (rg), rootstock diameter (mm), scion diameter (mm), stionic ratio, leaves graft-1 and sturdiness quotient

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14

Franzin, Mayara L., Camila C. Moreira, Leila N. P. da Silva, et al. "Metarhizium Associated with Coffee Seedling Roots: Positive Effects on Plant Growth and Protection against Leucoptera coffeella." Agriculture 12, no. 12 (2022): 2030. http://dx.doi.org/10.3390/agriculture12122030.

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Metarhizium species can be mutualistic symbionts of plants. They are able to colonize roots, promote plant growth and provide protection against pests. We previously found Metarhizium robertsii and M. brunneum associated with coffee roots in a diversified coffee system. Here, we investigated whether these fungi, when inoculated in coffee seedlings, can associate with roots, improve seedling growth and indirectly protect against the coffee leaf miner (CLM) Leucoptera coffeella (Lepidoptera: Lyonetiidae). We performed a greenhouse experiment with coffee seedlings using suspensions of each Metarh

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15

Saputra, Hariadi, Yadi Setiadi, and Iwan Hilwan. "RESPON PERTUMBUHAN BIBIT ANGSANA (Pterocarpus indicus Willd.) TERHADAP MEDIA TUMBUH, PEMOTONGAN AKAR LATERAL DAN PEMBERIAN URIN SAPI Response of Angsana (Pterocarpus indicus Willd.) Seedling on Growing Media, Lateral Roots Cutting, and Cow’s Urine." Journal of Tropical Silviculture 8, no. 3 (2018): 154–59. http://dx.doi.org/10.29244/j-siltrop.8.3.154-159.

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Nursery is a process in producing good quality seedlings. Seedling quality is determined by physical-physiological quality including woody stem, health, height, diameter, number of leaves, leaf color and compactness of media. The quality of angsana seedlings in this study was observed using some growth media, lateral root cutting, and cow’s urine addition with various concentration and liquid organic fertilizer for 13 weeks. The study was conducted in a completely randomized design (CRD) in split plot with 3 growth mediums, 10 combinations of root-cutting and fertilizing treatment using 9 seed

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16

Cobb, B. G., D. L. Andrews, D. M. MacAlpine, J. R. Johnson, and M. C. Drew. "1001 ANOXIA TOLERANCE OF MAIZE SEEDLING ROOTS." HortScience 29, no. 5 (1994): 573a—573. http://dx.doi.org/10.21273/hortsci.29.5.573a.

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We have been examining the response of maize seedling roots to oxygen stress. Previously, we have shown that maize seedlings with primary root lengths of 10cm or greater require a pretreatment with low oxygen (hypoxia) for survival of greater than 12 hours of anoxia. During the pretreatment there is induction of mRNA and increase in enzymatic activity of alcohol dehydrogenase (ADH) and other enzymes that are necessary for alcoholic fermentation. However, we have found that younger seedlings do not need a pretreatment to survive anoxia. They appear to have high levels of ADH and other enzymes t

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17

Eissenstat, David M., Javier F. Espeleta, and Eric L. Whaley. "Responses of the Fine Roots of Citrus to Dry Surface Soil." HortScience 31, no. 4 (1996): 577a—577. http://dx.doi.org/10.21273/hortsci.31.4.577a.

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Despite the frequent occurrence of hot, dry surface soil, little is known about the fate of roots in this soil layer during and following periods of surface drought. Phosphorus uptake kinetics were examined in surface roots of citrus seedlings exposed to different periods of drought. Exposure to dry soil for up to 43 days had no effect on phosphate uptake of excised roots measured at solution concentrations of 50, 750, and 1500 μm phosphate. Effects of surface drought on fine root behavior of seedlings and bearing trees were examined in the field using a split-pot arrangement. At the end of 5

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18

Li, Bailian, H. L. Allen, and S. E. McKeand. "Nitrogen and Family Effects on Biomass Allocation of Loblolly Pine Seedlings." Forest Science 37, no. 1 (1991): 271–83. http://dx.doi.org/10.1093/forestscience/37.1.271.

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Abstract Biomass of stem, needles, and roots were determined for seedlings of 23 open-pollinated loblolly pine families alter 20 weeks' growth in a greenhouse under two nitrogen (N) levels (5 and 50 ppm). Allometric analysis was used to determine the N and family effects on the biomass allocation. Nitrogen had significant effects on seedling growth and biomass allocation to stem, needles, and roots. Low N resulted in smaller seedling size, but relatively more biomass was allocated to roots than under the high N condition. N stress generally favored biomass allocation to roots at the expense of

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19

Kupryashina, M. A., and Sv A. Alen’kina. "Effects of Azospirillum lectin on wheat seedling growth under salt stress." Biomics 14, no. 4 (2022): 315–21. http://dx.doi.org/10.31301/2221-6197.bmcs.2022-31.

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Azospirillum brasilense, which has the potential to stimulate plant growth, belongs to plant-growth-promoting bacteria. The positive effect of Azospirillum on plants may be due to different mechanisms. Azospirilla can assist in mitigation of many kinds of abiotic stress. Lectins are glycoproteins with different molecular masses and carbohydrate specificities. Azospirillum lectins are polyfunctional molecules. They promote plant growth and enzyme activity, they also can alter the plant cell content of stress metabolites, which attests that they can induce adaptation processes in wheat seedling

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20

McKevlin, M. R., D. D. Hook, W. H. McKee Jr., S. U. Wallace, and J. R. Woodruff. "Phosphorus allocation in flooded loblolly pine seedlings in relation to iron uptake." Canadian Journal of Forest Research 17, no. 12 (1987): 1572–76. http://dx.doi.org/10.1139/x87-241.

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To determine whether P allocation in loblolly pine (Pinustaeda L.) seedlings is related to uptake of Fe2+ and its subsequent oxidation and precipitation out of the transpiration stream, newly germinated and 1 -year-old loblolly pine seedlings were grown in flooded and drained pots in a glasshouse for 24 to 28 weeks. The foliage of the younger seedlings grown in flooded pots exhibited P deficiency symptoms and had lower P concentrations, averaging 63% of those for drained seedling foliage. The older seedlings did not develop P deficiency symptoms but flooding resulted in P concentrations in the

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21

Feret, Peter P., and Richard E. Kreh. "Effect of Undercutting on Loblolly Pine Seedling Size and Its Relation to Root Growth Potential." Southern Journal of Applied Forestry 10, no. 1 (1986): 24–27. http://dx.doi.org/10.1093/sjaf/10.1.24.

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Abstract Loblolly pine seedlings undercut using five different treatments extending from July to September exhibited significant alteration of shoot and root biomass. Root growth potential (RGP) (measured by number of new elongating roots) was not significantly altered by undercutting. Undercutting did significantly alter the RGP/root weight ratio and the RGP/shoot weight ratio because of both concomitant changes in root and shoot biomass and changes in seedling physiology. Root growth potential and efficiency of existing old roots to produce new roots were not well correlated with seedling si

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22

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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23

Enns, Linda C., Margaret E. McCully, and Martin J. Canny. "Branch roots of young maize seedlings, their production, growth, and phloem supply from the primary root." Functional Plant Biology 33, no. 4 (2006): 391. http://dx.doi.org/10.1071/fp06029.

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Branch root development on the primary root of maize (Zea mays L.) seedlings was followed for 9 d after planting. This period includes the shift from seedling heterotrophy to autotrophy. Linear density of branches in the basal region ranged from ~38 cm–1 at the base to ~10 cm–1 beyond 10 cm. Branch roots in the first ~8 cm were produced before assimilate was available. Branch length decreased from ~26 mm at 1 cm along the primary root to ~8 mm at 10 cm from the base. Without the cotyledon, branch root density in the basal region was ~10 cm–1 and roots were short (~5 mm). Beyond 8–10 cm both me

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24

Sayer, Mary Anne Sword, Shi-Jean Susana Sung, and James D. Haywood. "Longleaf Pine Root System Development and Seedling Quality in Response to Copper Root Pruning and Cavity Size." Southern Journal of Applied Forestry 35, no. 1 (2011): 5–11. http://dx.doi.org/10.1093/sjaf/35.1.5.

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Abstract Cultural practices that modify root system structure in the plug of container-grown seedlings have the potential to improve root system function after planting. Our objective was to assess how copper root pruning affects the quality and root system development of longleaf pine seedlings grown in three cavity sizes in a greenhouse. Copper root pruning increased seedling size, the allocation of root system dry weight to the taproot, and the fraction of fibrous root mass allocated to secondary lateral roots compared with primary lateral roots. It decreased the allocation of root system d

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25

Bachand, George D., and John D. Castello. "Seasonal Pattern of Tomato Mosaic Tobamovirus Infection and Concentration in Red Spruce Seedlings." Applied and Environmental Microbiology 64, no. 4 (1998): 1436–41. http://dx.doi.org/10.1128/aem.64.4.1436-1441.1998.

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ABSTRACT Tomato mosaic tobamovirus (ToMV) infects red spruce (Picea rubens) and causes significant changes in its growth and physiology. The mechanism of infection and the pattern of virus concentration in seedling roots and needles were investigated. One-year-old red spruce seedlings were obtained from the nursery in April and June 1995 and August 1996 and tested for ToMV using enzyme-linked immunosorbent assay (ELISA). Virus-free seedlings were divided into three treatments: control, root inoculated, and needle inoculated. Two control, five root-inoculated, and five needle-inoculated seedlin

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Bakker, Matthew G., Jyotsna Acharya, Thomas B. Moorman, Alison E. Robertson, and Thomas C. Kaspar. "The Potential for Cereal Rye Cover Crops to Host Corn Seedling Pathogens." Phytopathology® 106, no. 6 (2016): 591–601. http://dx.doi.org/10.1094/phyto-09-15-0214-r.

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Cover cropping is a prevalent conservation practice that offers substantial benefits to soil and water quality. However, winter cereal cover crops preceding corn may diminish beneficial rotation effects because two grass species are grown in succession. Here, we show that rye cover crops host pathogens capable of causing corn seedling disease. We isolated Fusarium graminearum, F. oxysporum, Pythium sylvaticum, and P. torulosum from roots of rye and demonstrate their pathogenicity on corn seedlings. Over 2 years, we quantified the densities of these organisms in rye roots from several field exp

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Om, H., R. K. Joon, and O. P. Singh. "Damaged Seedling Roots and Grain Yield." International Rice Research Newsletter 12, no. 4 (1987): 59. https://doi.org/10.5281/zenodo.7123094.

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This article 'Damaged Seedling Roots and Grain Yield' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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Barberis, Ignacio M., and James W. Dalling. "The effect of light, seed size and biomass removal on cotyledon reserve use and root mass allocation in Gustavia superba seedlings." Journal of Tropical Ecology 24, no. 6 (2008): 607–17. http://dx.doi.org/10.1017/s0266467408005440.

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Abstract:Some large-seeded tree species have cotyledonary reserves that persist for months after seedling establishment. We carried out two screened growing-house experiments with seedlings of Gustavia superba (Lecythidaceae) to test hypotheses proposed to explain why cotyledons are retained. We grew seedlings from large and small seeds in sun and shade to determine if cotyledon reserves supplement photosynthetic carbon gain, and in a second experiment applied defoliation and shoot removal treatments to determine if reserves are allocated to resprout tissue. In each experiment we tracked cotyl

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Thiffault, Nelson. "Stock type in intensive silviculture: A (short) discussion about roots and size." Forestry Chronicle 80, no. 4 (2004): 463–68. http://dx.doi.org/10.5558/tfc80463-4.

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I present an overview of some main issues related to the role of stock type in the intensive silviculture of conifers. The aim of my analysis is to answer some aspects of the question of whether or not foresters involved in intensive silviculture in eastern Canada should be concerned with stock type selection. When artificially establishing a forest stand, stock type selection can interact with other treatments to influence plantation success and productivity. Of particular importance are seedling size and root system characteristics. Research has demonstrated the greater intrinsic growth pote

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Harrison, Susan, and Marina LaForgia. "Seedling traits predict drought-induced mortality linked to diversity loss." Proceedings of the National Academy of Sciences 116, no. 12 (2019): 5576–81. http://dx.doi.org/10.1073/pnas.1818543116.

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Trait-based approaches are increasingly used to predict ecological consequences of climate change, yet seldom have solid links been established between plant traits and observed climate-driven community changes. Most analyses have focused on aboveground adult plant traits, but in warming and drying climates, root traits may be critical, and seedlings may be the vulnerable stage. Relationships of seedling and root traits to more commonly measured traits and ecological outcomes are poorly known. In an annual grassland where winter drought-induced seedling mortality is driving a long-term decline

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Cumming, Jonathan R., and Leonard H. Weinstein. "Nitrogen source effects on Al toxicity in nonmycorrhizal and mycorrhizal pitch pine (Pinus rigida) seedlings. I. Growth and nutrition." Canadian Journal of Botany 68, no. 12 (1990): 2644–52. http://dx.doi.org/10.1139/b90-334.

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Previous studies indicated that the association of Pisolithus tinctorius with pitch pine (Pinus rigida) seedling roots prevented Al toxicity from developing when seedlings were exposed to 200 μM Al in sand culture. The ectomycorrhizal fungus reduced seedling Al uptake and maintained P nutrition when seedlings were cultured on one-quarter strength Johnson's solution containing 3.5 and 0.5 mM [Formula: see text] and [Formula: see text], respectively. To broaden the scope of these findings, nonmycorrhizal and mycorrhizal seedlings were grown on one-quarter strength Johnson's solution modified to

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Kormanik, Paul P. "Lateral Root Morphology as an Expression of Sweetgum Seedling Quality." Forest Science 32, no. 3 (1986): 595–604. http://dx.doi.org/10.1093/forestscience/32.3.595.

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Abstract Sweetgum seedlings from four open pollinated mother trees were grown in nursery beds infested with one of four vesicular-arbuscular mycorrhizal (VAM) fungi, and with available soil P levels (Bray II) adjusted to 50 ppm. Comparable beds had no VAM fungi present but had their available soil P levels adjusted to about 75, 100, 200, and 300 ppm. When lifted, the seedlings were placed in one of three morphological grades based upon number of permanent lateral roots exceeding 1 mm in diameter: Grade 1 seedlings had more than six roots; grade 2 between four and six roots; grade 3 had fewer t

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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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Pernot, Clémentine, Nelson Thiffault, and Annie DesRochers. "Influence of Root System Characteristics on Black Spruce Seedling Responses to Limiting Conditions." Plants 8, no. 3 (2019): 70. http://dx.doi.org/10.3390/plants8030070.

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Roots directly affect planted seedling adaptation to new growing conditions at reforestation sites. To test the influence of root characteristics on the short-term response of seedlings to limiting resources (water, nutrient, or oxygen), we conducted two experiments. We compared (1) the growth and physiology of three types of four-year-old black spruce (Picea mariana (Mill.) BSP) seedlings (Containerized, highly developed initial roots restricted to a plug; bareroot, less developed but unrestricted initial roots; deeply-planted containerized, restricted initial and adventitious roots) to diffe

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Sun, Guangyan, Yi Gou, Linxi Zhang, et al. "Effects of Different Temperatures on the Physiological Characteristics of Sweet Potato (Ipomoea batatas L. Lam) Storage Roots and Growth of Seedlings During the Sprouting and Seedling Period." Plants 14, no. 6 (2025): 868. https://doi.org/10.3390/plants14060868.

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Seedling cultivation is the foremost part of sweet potato (Ipomoea batatas L. Lam) production. It is of great significance to reveal the effects of different temperatures on the nutrients of sweet potato storage roots and their relationship with the sprouting quality and to explore the appropriate temperature management for seedlings. In this study, we simulated the temperature differences during the sprouting and seedling period in the summer growing area of sweet potato in the Yangtze River Basin and set three constant temperatures (17 °C, 22 °C and 27 °C) and corresponding three-day/night v

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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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Han, Luhua, Menghan Mo, Yansu Gao, Haorui Ma, Yang Liu, and Hanping Mao. "Effects of Biochar Addition into Substrate on Tomato Plug Seedlings and Its Working with Automatic Transplanting." Journal of Biobased Materials and Bioenergy 16, no. 1 (2022): 68–76. http://dx.doi.org/10.1166/jbmb.2022.2150.

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Vegetable seedling transplantation has become a beneficial and specialized procedure, and a vegetable-specific study on seedling qualities for compatibility with automatic transplanting is needed. In this study, biochar prepared from corn straws was used as the auxiliary material to cultivate seedlings. Firstly, physicochemical properties of compound substrates with different composite of biochar (volume ratio 0, 10, 20~50%) and growth indices of seedlings were measured according to agpronomic conditions. Then, mechanical properties of root lumps and transplanting integrity were investigated.

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Nurjaman, K. M., A. S. Wulandari, and Y. Istikorini. "Effect of Endophytic Fungi Inoculation and Ecoenzyme on the Growth of Gmelina (Gmelina arborea (Roxb.)) Seedlings." IOP Conference Series: Earth and Environmental Science 959, no. 1 (2022): 012011. http://dx.doi.org/10.1088/1755-1315/959/1/012011.

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Abstract During the growth process, plants require nutrients and have a symbiotic relationship with beneficial microbes. The purpose of this study was to examine the effect of endophytic fungi inoculation and eco enzymes on the growth of Gmelina Seedlings. The endophytic fungi which were used were Ochroconis sp., Ascotricha sp., and Arthrinium malaysianum. Endophytic fungi inoculation into Gmelina Seedlings was carried out by watering fungal suspension onto the planting medium. The same method was carried out for the application of eco enzyme. The results showed that inoculation of the endophy

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Walters, Judi R., Tina L. Bell, and Steve Read. "Intra-specific variation in carbohydrate reserves and sprouting ability in Eucalyptus obliqua seedlings." Australian Journal of Botany 53, no. 3 (2005): 195. http://dx.doi.org/10.1071/bt04016.

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Seedlings of 13 provenances of Eucalyptus obliqua L’Hér. grown under favourable moisture and nutrient conditions in a glasshouse for 9 months showed significant differences in seedling height, lignotuber size and carbohydrate reserve pools in roots and lignotubers. Lignotuber size was strongly and inversely correlated with mean annual rainfall of the source provenance, and larger E. obliqua lignotubers had higher concentrations and pools of carbohydrate reserves than smaller lignotubers. When seedling stems were clipped just above the lignotuber to simulate grazing or damage by fire, clipped s

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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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Ran, Shengxiang, Kun Zhang, Yuqi Zhou, Weiqun Huang, and Fenglin Zhong. "Nickel Ions Enhanced the Adaptability of Tomato Seedling Roots to Low-Nitrogen Stress by Improving Their Antioxidant Capacity." Horticulturae 9, no. 12 (2023): 1342. http://dx.doi.org/10.3390/horticulturae9121342.

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To elucidate the physiological mechanisms underlying the impact of exogenous nickel ions (Ni2+) on the adaptability of tomato (Solanum lycopersicum L.) seedling roots to low-nitrogen levels, the cultivar ‘Micro Tom’ was selected as the experimental material and cultivated hydroponically in the cultivation room of the Fujian Agriculture and Forestry University. Two distinct nitrogen concentrations (7.66 and 0.383 mmol·L−1) and two different levels of Ni2+ (0 and 0.1 mg·L−1 of NiSO4·6H2O) were employed as treatments. On the 9th day of cultivation, we measured the root biomass, the concentrations

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Veselá, Petra, Martina Vašutová, Karolína Hofmannová, Magda Edwards-Jonášová, and Pavel Cudlín. "Ectomycorrhizal Community on Norway Spruce Seedlings Following Bark Beetle Infestation." Forests 10, no. 9 (2019): 740. http://dx.doi.org/10.3390/f10090740.

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Ectomycorrhizal (ECM) fungi importantly influence seedling growth, nutrition, and survival and create an extensive mycelial network interconnecting tree species and enabling resource redistribution. Due to their symbiotic relationship with trees, they are impacted by forest disturbances, which are of increasing relevance due to climate change. The effect of disturbance on seedling colonization and their morphology is still largely unknown. Seedling growth parameters and the ECM fungal assemblage on the roots of Norway spruce (Picea abies (L.) H. Karst.) seedlings were assessed in mature spruce

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Sharma, G. D., R. R. Mishra, and W. R. Lyngdoh. "Influence of copper and formalin on the mycorrhiza of pine (Pinus kesiya Royle ex Gordon)." Acta Mycologica 21, no. 1 (2014): 91–100. http://dx.doi.org/10.5586/am.1985.008.

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Various concentrations of copper sulphate and formalin were tested for their effect on the efficiency of mycorrhizal functioning in pine seedlings. Low and higher doses of copper applied to the container grown seedling exhibited a less stimulatory effect than nedium doses. When applied in higher concentrations, the formalin caused mortality in young pine seedlings. The seedling yield and phosphate uptake was found maximum in 100 ppm applied concentration of copper. while słów growth and lower phosphate concentration was observed in the seedlings not given any copper treatment. Formalin at 50 p

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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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Ludang, Yetrie, Wahyu Supriyati, and Alpian Alpian. "Distribusi Biomassa dan Karbon Tingkat Semai Jenis Manggis, Lengkeng, Sengon dan Jelutung." HUTAN TROPIKA 17, no. 1 (2022): 61–67. http://dx.doi.org/10.36873/jht.v17i1.4363.

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The carbon content in trees is affected by the amount of tree biomass. The value of the biomass content of the tree indicate to the value the carbon content. It is interest to study of the growth rate of seedlings and learn to carbon and biomass distributions. This aims of the study is to know the level of carbon distribution of Manggis, Lengkeng, Sengon and Jelutung seedlings. The samples of selected seedlings were removed (destructive method). The roots washed by water to remove the sticky soil. The samples dried for 1 day, dried with a temperature of 102 ± 30C to constant weight. Samples th

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Fassio, Claudia, Ricardo Cautin, Alonso Pérez-Donoso, Claudia Bonomelli, and Mónica Castro. "Propagation Techniques and Grafting Modify the Morphological Traits of Roots and Biomass Allocation in Avocado Trees." HortTechnology 26, no. 1 (2016): 63–69. http://dx.doi.org/10.21273/horttech.26.1.63.

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Root morphological traits and biomass allocation were studied in 2-year-old ‘Duke 7’ avocado (Persea americana) trees propagated using seedling and clonal techniques. The plants either were or were not grafted with the scion ‘Hass’. Whole tree excavation 1 year after planting revealed that the propagation technique affected the root growth angle of the main roots (third order roots), the root length density (defined as the total length of roots per volume of soil), and the number of first and second order roots present. The root system of clonal trees showed a typical morphology of rooted cutt

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Maskina, M. S., O. P. Meelu, and H. S. Baddesha. "Effect of Injured Seedling Roots on Rice Yield." International Rice Research Newsletter 10, no. 6 (1985): 31. https://doi.org/10.5281/zenodo.7099933.

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This article 'Effect of Injured Seedling Roots on Rice Yield' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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Simpson, David G., and Alan Vyse. "Planting stock performance: Site and RGP effects." Forestry Chronicle 71, no. 6 (1995): 739–42. http://dx.doi.org/10.5558/tfc71739-6.

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Douglas-fir [Pseudotsuga menziesii var glauca (Beissn.) Franco], interior spruce [Picea glauca Moench (Voss), Picea engelmannii (Parry) and their naturally occurring hybrids] and lodge-pole pine (Pinus contorta Dougl.) seedlings were planted on several forest sites in south central British Columbia. At planting, root growth potential (number of newly elongated roots longer than 10 mm per seedling) was determined. Trees were assessed for survival and height for at least five years. Survival of Douglas-fir and growth of all three species was affected by planting site, probably reflecting moistur

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Iles, T. M., D. H. Ashton, K. J. Kelliher, and P. J. Keane. "The effect of Cylindrocarpon destructans on the growth of Eucalyptus regnans seedlings in air-dried and undried forest soil." Australian Journal of Botany 58, no. 2 (2010): 133. http://dx.doi.org/10.1071/bt08124.

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The growth of Eucalyptus regnans F.Muell. (mountain ash) seedlings is poor in natural forest soil, where purple coloration of the foliage indicates P deficiency and where the fungus Cylindrocarpon destructans (Zinsm.) Scholten is commonly isolated from the roots of the seedlings. When forest soil is air-dried, P acquisiton and growth of seedlings are markedly improved, although the degree of growth stimulation varies considerably at different times, as does the frequency of occurrence of C. destructans on the roots. C. destructans has been implicated as a possible reason for suppressed growth

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Medina, Edison Cardona, Marisa Santos, and Rubens Onofre Nodari. "Post-seminal structure and development of the hemiparasitic plant Escobedia grandiflora (Orobanchaceae)." Acta Scientiarum. Biological Sciences 41 (November 6, 2019): e46667. http://dx.doi.org/10.4025/actascibiolsci.v41i1.46667.

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Escobedia grandiflora (L.f.) Kuntze is a wild hemiparasitic plant with orange roots. Little is known about the development of initial parasitism with the host, despite the significant value of roots for Central and South American communities. Therefore, this study aimed to characterize post-seminal structure and development of E. grandiflora in Pennisetum purpureum host. To analyze the structure and development of E. grandiflora, seedlings, stems and roots samples were processed and examined under light, confocal and scanning electron microscopy. Escobedia grandiflora seeds are composed of see

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