نتایج جستجو برای: specific leaf area
تعداد نتایج: 1627616 فیلتر نتایج به سال:
Recent studies have shown that stomata respond to changes in hydraulic conductance of the flow path from soil to leaf. In open-grown tall trees, branches of different heights may have different hydraulic conductances because of differences in path length and growth. We determined if leaf gas exchange, branch sap flux, leaf specific hydraulic conductance, foliar carbon isotope composition (delta...
Nowadays, various training systems are utilized to grow greenhouse roses. Some of the training systems permit high canopy light penetration and hence increase canopy photosynthesis rate. The aim of this investigation was to evaluate the response of arching and traditional training systems to shading (0 (no shading/control), 25, 50 and 65%) and their effects on marketing quality of cut roses (...
Physiological studies indicated that flag leaf has high contribution in wheat grain yield. In addition, number, distribution, and morphology of stomatal characteristics are important traits in the drought resistance and adaptation of wheat cultivars to fluctuating CO2 levels. A complete set of diallel crosses among seven durum wheat lines were used to study of genetic parameters of stomatal and...
Leaves are most vulnerable to herbivory during expansion. We hypothesised that one factor favouring small leaves could be that smaller-leaved species have shorter expansion times and are therefore exposed to high levels of herbivory for a shorter period than large leaves. In order to test this hypothesis, leaf expansion time and leaf area loss were measured for 51 species from Sydney, Australia...
The effect of cement dust on the growth parameters of brinjal (Solanum melongena) was studied. The cement dust (2 g/plant) exhibited both inhibitory and promotory effects on different growth parameters of the S. melongena. The decrease in the number of leaves (37.19 and 62.28%), leaf area (57.93 and 57.26%), root length (48.21 and 56.75%), shoot length (27.27 and 38.98%), plant circumference (3...
Environmental and developmental controls on specific leaf area are little modified by leaf allometry
Variations in camptothecin (CPT) content in relation to leaf characteristics namely leaf area, leaf biomass, and specific leaf area (leaf area divided by leaf biomass), and the influence of climatic factors on CPT content in saplings of Camptotheca acuminata Decne. were studied. Leaf area and CPT content showed a logarithmic relationship in young leaves similar to that between leaf biomass and ...
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