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1	Seed Vigor Test for the Establishment of Switchgrass Forberg, Daniel Bilik 01 January 2009 (has links) (PDF) Switchgrass (Panicum virgatum), a high-yielding perennial C4 prairie grass species, is a top candidate as a bioenergy feedstock for cellulosic ethanol production. Seedling establishment is a primary concern given the inherent variability in switchgrass seed dormancy. Determining current states of seed quality in terms of emergence percentage is crucial for a successful stand establishment. A practical seed vigor test was conducted under greenhouse conditions to determine current emergence percentage. Three depths and three media types were conditions evaluated in the vigor test. To find correlation between emergence percentage in greenhouse test conditions and that in field conditions, results from the vigor test were applied in two separate field evaluations. Field evaluations showed that vigor test conditions of field soil at 1-cm depth yielded below the target, suggesting that this condition did not put enough stress on seedling emergence in the greenhouse vigor test. A 20% increase of vigor test results in the field soil/1 cm condition could accurately predict field emergence. Field results suggested that coarse sand at 5-cm accurately predicted field emergence of highly vigorous varieties and that coarse sand at 1-cm and fine sand at 3-cm predicted field emergence in moderately to least vigorous varieties. dormancy Panicum virgatum stand emergence planting rate Agronomy Agronomy and Crop Sciences
2	Effects of High Intensity Management of Winter Wheat on Grain Yield, Straw Yield, Grain Quality, and Economic Returns Peterson, Todd January 2021 (has links) No description available. Agronomy Agriculture Agricultural Economics wheat grain yield grain quality deoxynivalenol DON Fusarium Head Blight FHB straw yield straw yield economic returns profit partial returns income ROI high input omission trial fungicide feekes nitrogen sulfur sulphur intensive management traditional management seeding rate planting rate

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Seed Vigor Test for the Establishment of Switchgrass

Effects of High Intensity Management of Winter Wheat on Grain Yield, Straw Yield, Grain Quality, and Economic Returns