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 6 of 6 for “"radiation use efficiency"”.
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Direct and Indirect Effects of Elevated Carbon Dioxide and Ozone on the Canopy of a Soybean Agroecosystem
… [CO 2] and [O3]. By increasing photosynthetic efficiency, elevated [CO2] may increase maximum LAI. However, [O3] accelerates senescence and may reduce LAI. My second objective was to determine how changes in canopy size altered the radiation use efficiency of the canopy in elevated [CO2] and …
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Canopy Architecture and Plant Density Effect in Short-Season Chickpea (Cicer arietinum L.)
… harvest index, ascochyta blight severity and radiation- and water use efficiencies. The plant density which produced the highest seed yield when averaged over years for each location for each treatment revealed that a plant density of at least 55 plants m-2 produced a 23% to 49% seed yield …
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Environmental drivers of bulb production in brassicas
Bulb brassicas are used as supplementary feed in intensive pastures systems. However, there is a lack of quantitative data to define their growth and development. This has limited the creation and use of prediction models and decision support systems. Thus a series of experiments were used to …
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Evaluation and improvement of CERES-Maize evapotranspiration simulations under full and limited irrigation treatments in northern Colorado
… context and in a crop modeling context. Because of Colorado water law the quantification of ET is especially important, as ET is considered a consumptive use of the crop and therefore can be transferred between entities. The overall goal was to improve understanding of both field and model …
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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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A tripartite study on Bayesian estimation of photosynthetically active radiation, impacts of future climate, and adaptation strategies on crop production: a spatial model framework for the Eastern Kansas River Basin
… insight on crop productivity and water use management. More so, improvement in process-based crop model inputs such as photosynthetically active radiation (PAR) is essential to enhance model accuracy, while also documenting new estimation methods. The ultimate goal of this dissertation …