Results 21 to 30 of about 394,445 (306)

Effect of Cement Dust on Growth Parameters of Tomato (Lycopersicon esculentum L.)

open access: yesInternational Journal of Bio-Resource and Stress Management, 2023
The effect of cement dust on the growth parameters of tomato (Lycopersicon escu­lentum L.) was studied. The cement dust (@ 2 g plant-1) exerted both inhibitory and promotory effects on different growth parameters. The decrease in number of leaves (59.69
Enespa, S. K. Dwivedi
doaj  

Above- and below-ground competition in high and low irradiance: tree seedling responses to a competing liana Byttneria grandifolia [PDF]

open access: yes, 2008
: In tropical forests, trees compete not only with other trees, but also with lianas, which may limit tree growth and regeneration. Liana effects may depend on the availability of above- and below-ground resources and differ between tree species.
Bongers, F.   +3 more
core   +2 more sources

Morphological and moisture availability controls of the leaf area‐to‐sapwood area ratio: analysis of measurements on Australian trees [PDF]

open access: yesEcology and Evolution, 2015
Abstract The leaf area‐to‐sapwood area ratio (LA:SA) is a key plant trait that links photosynthesis to transpiration. The pipe model theory states that the sapwood cross‐sectional area of a stem or branch at any point should scale isometrically with the area of leaves distal to that point.
Togashi, HF   +8 more
openaire   +4 more sources

Does shade improve light interception efficiency? A comparison among seedlings from shade-tolerant and -intolerant temperate deciduous tree species [PDF]

open access: yes, 2006
• Here, we tested two hypotheses: shading increases light interception efficiency (LIE) of broadleaved tree seedlings, and shade-tolerant species exhibit larger LIEs than do shade-intolerant ones.
Adam B   +29 more
core   +3 more sources

Morphological characterization of Indian pummelo (Citrus maxima)

open access: yesThe Indian Journal of Agricultural Sciences, 2019
The present study was conducted with the aim to characterize different indigenous pummelo genotypes based on 19 quantitative and 9 qualitative traits. Leaf shape, leaf margin shape, leaf apex shape, petiole wing, petiole wing shape, fruit shape, fruit ...
A K DUBEY   +4 more
doaj   +1 more source

A simulation study on the interactive effects of radiation and plant density on growth of cut chrysanthemum [PDF]

open access: yes, 2002
In the present study, we used a photosynthesis-driven crop growth model to determine acceptable plant densities for cut chrysanthemum throughout the year at different intensities of supplementary light.
Challa, H., Heuvelink, E., Lee, J.H.
core   +3 more sources

Genetic variability studies in amaranthus (Amaranthus spp.)

open access: yesJournal of Horticultural Sciences, 2021
An investigation was carried out to estimate the nature and extent of genetic variability​ ​among twenty Amaranthus genotypes (Amaranthus spp.) under a randomized block design during the year 2019-20.
Annapoorna Agadi   +4 more
doaj   +1 more source

Leaf Size and Leaf Area Index in Fagus sylvatica Forests: Competing Effects of Precipitation, Temperature, and Nitrogen Availability [PDF]

open access: yes, 2008
Plants across diverse biomes tend to produce smaller leaves and a reduced total leaf area when exposed to drought. For mature trees of a single species, however, the leaf area-water supply relationship is not well understood.
Christoph Leuschner, Ina C. Meier
core   +1 more source

Análise de crescimento de biótipos de leiteira (Euphorbia heterophylla) resistentes e suscetível aos herbicidas inibidores da ALS Growth analysis of resistant and susceptible wild poinsettia (Euphorbia heterophylla) biotypes to ALS-inhibiting herbicides

open access: yesPlanta Daninha, 2000
Foram conduzidos dois experimentos em condições de casa de vegetação, com o objetivo de analisar comparativamente o crescimento de três biótipos de leiteira (Euphorbia heterophylla - EPHHL) resistentes (R) (Passo Fundo, Não-Me-Toque e Rio Pardo) e um ...
R.A. Vidal, M.M. Trezzi
doaj   +1 more source

The effects of different potted mixtures on the growth and development of miniature roses (Rosa ‘Orange Meillandina’) [PDF]

open access: yesInternational Journal of Recycling of Organic Waste in Agriculture, 2020
Purpose The miniature rose is one of the most important potted flowers. So far, however, no research has focused on its optimal growing medium. This experiment was performed to evaluate the effects of different media on the growth and development of ...
Masood Ghasemi Ghehsareh   +2 more
doaj   +1 more source

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