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Full-Text Articles in Physical Sciences and Mathematics
Impacts Of Plant Size, Density, Herbivory, And Desease On Native Platte Thistle (Cirsium Canescens), Deidra Jacobsen
Impacts Of Plant Size, Density, Herbivory, And Desease On Native Platte Thistle (Cirsium Canescens), Deidra Jacobsen
Department of Environmental Studies: Undergraduate Student Theses
Abstract. Based on prior field observations, we hypothesized that individual and interacting effects of plant size, density, insect herbivory, and especially fungal disease, influenced seedling and juvenile plant growth in native Platte thistle populations (Cirsium canescens Nutt.). We worked at Arapaho Prairie in the Nebraska Sandhills (May - August 2007), monitoring plant growth, insect damage, and fungal infection within different density thistle patches. In the main experiment, we sprayed half of test plants in different density patches with fungicide (Fungonil© Bonide, containing chlorothalonil) and half with a water control. Fungal infection rates were very low, so we found no difference …
Evaluating Hazelnut Cultivars For Yield, Quality And Disease Resistance, Sam Tobin
Evaluating Hazelnut Cultivars For Yield, Quality And Disease Resistance, Sam Tobin
Department of Environmental Studies: Undergraduate Student Theses
ABSTRACT This long term study focuses on testing various hazelnut cultivars for yield, nut quality and disease resistance. There are various cultivars that are being tested for these desired traits but only the Grand Traverse and Skinner will be applicable for the results of this localized study. The desired traits of commercial nut production are best matched by these two cultivars. Results from previous harvests will be used to draw trends to recommend commercially functional cultivars in Eastern Nebraska.