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 “"phenology model"”.
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A crop phenology model for Windows
An object oriented model for simulating crop and weed phenology under field conditions has been developed for educational and research purposes. The model can be used to study seasonal dynamics of crop and weed canopies which are important in controlling crop photosynthesis, evapotranspiration, …
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Ovicidal activity of methomyl on eggs of pest and beneficial insects and mites associated with apples in Virginia
… activity and prospects for development of a phenology model to predict seasonal activity of the species is discussed.
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Population ecology of the red admiral butterfly (Bassaris gonerilla) and the effects of non-target parasitism by Pteromalus puparum
… of this thesis was to quantify, using population models, the effect that P. puparum is having on B. gonerilla abundance. Population monitoring and a phenology model (based on temperature-related development rates) indicated that B. gonerilla has two full generations and one partial generation per …
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Mountain pine beetle outbreaks in high elevation whitebark pine forests: the effects of tree host species and blister rust infection severity on beetle productivity
… snap in October 2009 as indicated by combined phenology/cold tolerance model results. MPB attack density was lowest on the most severely WPBR-infected trees, but emergence rates and size of beetles from these trees were greatest. Low attack rates in severely infected whitebark pine may indicate …
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Mountain pine beetle outbreaks in high elevation whitebark pine forests: the effects of tree host species and blister rust infection severity on beetle productivity
… snap in October 2009 as indicated by combined phenology/cold tolerance model results. MPB attack density was lowest on the most severely WPBR-infected trees, but emergence rates and size of beetles from these trees were greatest. Low attack rates in severely infected whitebark pine may indicate …