Global ETD Search
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Showing 1 to 4 of 4 for “"photosynthetic active radiation"”.
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On the ecophysiology of Baltic cyanobacteria focusing on bottom-up factors
… surface water, exposed to high levels of both photosynthetically active radiation (PAR, 400–700 nm) and ultraviolet radiation (UVR, 280–400 nm), in combination with low ratios of dissolved inorganic nitrogen and inorganic phosphorus (DIN:DIP). The ability of nitrogen fixation, a high tolerance …
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Contribution of crop morphological characteristics and density of selected crops to weed species composition and suppression
… was directly related to leaf area index (LAI), radiation interception and radiation use efficiency (RUE). The highest LAI’s were recorded in turnip (4.1) at 60 DAS. While other crops such as bean and maize attained LAI's of only 0.66 and 1.1 respectively by the same time. Leaf area index …
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Wachstumsraten, Wachstumsmuster und Wachstumsstörungen tropischer Bäume: Analyse von Langzeiteffekten und kurzfristigen Störungen mit Hilfe von Jahrringstudien
… for the studied species. A significantly lower photosynthetic active radiation and daily photoperiod was found at Carlos Botelho by the strong influence of orographic rainfall, foggy conditions and shade caused by the adjacent mountain chain. Consequently, trees at this site generally showed a …
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Genotypic variation in water use efficiency, gaseous exchange and yield of four cassava landraces grown under rainfed conditions in South Africa
… effective quantum yield of PSII (ФPSII) and photosynthetic active radiation (PAR). Yield and yield components (root length (cm), root girth (cm), number of storage roots and mean root weight (g plant-1), root yield and aboveground biomass), as well as water use efficiency (WUE), were …