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 5 of 5 for “"sunflecks"”.
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Inhibition of Canopy Tree Seedlings by Thickets of <I>Rhododendron maximum</I> L. (Ericaceae) in an Eastern Deciduous Forest
… seedling photosynthetic capacity implies that sunflecks are critical for seedling net carbon gain in these forest understory environments. To determine the effect of <I>R. maximum</I> on the photosynthetic response to sunflecks of oak seedlings, light flecks were simulated on 288 randomly …
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Analysis of the "nurse-tree effect" of exotic shelter trees on the growth of the indigenous Podocarpus falcatus in an Ethiopian montane forest
… low (70%), because of the high intensity of the sunflecks, especially during the dry season. On cloudy days the efficiency was nearly 100% and resulted in an optimum photosynthetic performance of the saplings in the Pinus plantation. In the Eucalyptus plantation, the two-tired canopy resulted in …
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The Photoprotective Role of Anthocyanin Pigments in Leaf Tissues
… during periodic exposure to high intensity sunflecks or sun-patches, which are potentially damaging to shade-adapted plants. In developing leaves of three deciduous-tree species, anthocyanin disappearance corresponded with development of ~50% mature photopigment concentrations, ~80% lamina …
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Caracterização microclimática, ecofisiológica e fitossociológica em uma floresta estacional semidecidual secundária, em Viçosa, MG
… e transpiração. Verificou-se, também, que os sunflecks são importantes para a assimilação de carbono pelas plantas no sub-bosque. A análise da composição florística e fitossociológica revelou a ocorrência de 128 espécies, distribuídas em 43 famílias, existindo variação relevante da diversidade …
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The Physiological Ecology of Fraser FIr in Southern Appalachian Cloud Forests
… the understory most of the time except in direct sunflecks, are mostly due to conifer shoot structure and not leaf biochemistry. Thus, benefits of diffuse light to plant ecophysiology seems to be an emergent property, arising certainly at the shoot or branch level, and evident mostly at the …