Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"specific leaf area (SLA)"”.
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Environmental Gradients Impact Key Leaf Traits in Riparian Trees
<p>Specific leaf area (SLA) reflects a plant’s carbon investment per area and relates to generalized leaf economics spectrum growth strategies (LES). To fill gaps of knowledge about intraspecific SLA variation and why it is often inconsistent with the LES, we studied the response of two riparian …
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Primary plant succession at Franz Josef Glacier: Aspects of predictability and ecophysiology: A dissertation submitted in partial fulfilment of the requirement for the Degree of Bachelor of Horticultural Science (Honours) at Lincoln University
… during early succession and pedogenesis. Total leaf N was determined for 3 species, Griselinia littoralis, Pseudopanax colensoi and Coprosma lucida, on each site. Leaf N (mg/g) was highly variable exhibiting no clear trends. Leaf N per unit leaf area (mg/cm² ) declined with increasing surface …
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Changes in Leaf Area and Nutrient Content of Celtis spp. Across a Precipitation Gradient in Texas
… that an increase in precipitation increases leaf size and the C/N ratio, but can decrease leaf nitrogen concentration, thereby increasing the quantity of forage while potentially decreasing quality. I examined whether this prediction held across the longitudinal precipitation gradient of …
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Crescimento do porta enxerto 'Sunki tropical' (Citrus sunki hort. ex tan) em substratos orgânicos.
… length and diameter of the main root (CRP, DRP), leaf number (N ° F), leaf area (LA), dry matter (FS), reason leaf area ratio (LAR), leaf weight ratio (PPR), specific leaf area (SLA), specific leaf weight (PEF), absolute growth rate (AGR), relative growth rate (RGR), root / shoot ratio shoot (R / …
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Analysis of the Effect of Two Tillage Systems on Soybean (Glycine Max (L.) Merrill) Growth
… biomass (TPDB), the stem dry biomass (SDB), the leaf dry biomass (LDB) and the pod dry biomass (PODDB) were substantially larger with CT than with NT. The soybean planted with CT demonstrated hastened maturity, increased crop growth rate (CGR), leaf area index (LAI), net assimilation rate (NAR), …
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The ecology of sprouting in South African forests, savannas and fynbos
… strategy. Westoby's LHS scheme, which comprises specific leaf area (SLA), plant height and seed mass, is of the more practicable existing plant ecological strategy schemes. I show that the LHS scheme does not consistently identify sprouting across genera or families. In general, basal sprouters …
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Spatial models of plant diversity and plant functional traits : towards a better understanding of plant community dynamics in fragmented landscapes
… neutral model. I found that the ratio of survey area to landscape size is an important determinant of scale-dependent dispersal-diversity relationships. With small ratios, the model predicted increasing dispersal-diversity relationships, while decreasing dispersal-diversity relationships emerged, …
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Plasticidad fenotípica y diferenciación genética inter- e intrapoblacional en Quercus Suber l.: evaluación mediante caracteres fisiológicos y marcadores moleculares
… mayores valores de superficie foliar específica (SLA) y de contenidos foliares de nitrógeno (Nm) y de clorofilas total (Chlm) mientras que aquellos originarios de lugares fríos y secos presentaron los menores valores para estos caracteres. Estos resultados sugieren que la sequía estival y la …
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Growth of pasture species in the shade in relation to alder silvo-pastoral systems : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy (Ph.D.) in Pastoral Science, Institute of Natural Resources at Massey University, New Zealand
… Wana cocksfoot and 24-27 for PG 74 cocksfoot. Leaf area per plant for perennial ryegrass was also significantly (P<0.0001) lower than for Wana cocksfoot. Cocksfoot selections were more tolerant of heavy shade than perennial ryegrass, and Wana was the most tolerant of the cocksfoot selections of …
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Patterns and processes in tropical forests: an analysis of forest structure and function from long-term permanent plots in Venezuela, Northern South America
… linear mixed models and data from 10 functional leaf and stem-level traits that are known to be important attributes of tree species. Additionally, four functional diversity indexes, soil nutrient content and chemistry, along with plot stem density were included into the analysis as potential …