Abstract: . . .  improved molecular genetics and genomics technology for genetic improvement of pasture grasses with emphasis on switchgrass (Sarath, Vogel, cooperative with ARS scientists at Albany, CA). b. Determine physiological, biochemical and genetic control processes for seed dormancy and germination of warm-season forage grasses and specific native legumes (Sarath, Mitchell). c. Determine the biochemical, physiological, and genetic mechanisms of rhizobial N fixation by native legume species when grown with native prairie grasses. (Sarath, Mitchell) Component III. Herbaceous Bio-energy Crop Production Systems Objective . . .
. . .  Develop information on the effect of harvesting and storage technologies on switchgrass conversion efficiency for the central Great Plains and Midwest (Mitchell, Vogel, DOE-INL, ARS-Madison, WI, Peoria, IL). Objective 5. Quantify soil carbon sequestration and other environmental benefits of herbaceous biomass crop production systems. a. Determine the short term (<5 and 10 years) effects of switchgrass grown and managed as a bioenergy crop in the central and northern Great Plains on soil carbon sequestration (Vogel, Mitchell, ARS soil scientists at Lincoln, NE, Ft. Collins, CO, and Mandan, ND). Page . . .
. . .  develop systems for deployment of transgenic sorghum. 3. Develop molecular tools and technology for efficient and reliable genetic characterization of fungal races and bacterial biotypes pathogenic on sorghum that can be used to expedite detection and identification of pathogens. Objective 1: Enhance the energy yield and nutrient value of sorghum by modifying structural and storage carbohydrates. Plant genetics procedures used to accomplish this objective will be supported by the following sub-objectives: a. Identify and describe waxy mutations of sorghum and develop sorghum germplasm with high amylopectin . . .
. . .  Aceria tosichella. Presumably HC-Pro either directly or indirectly provides a bridge between a component within the mites and virions of WSMV. Transgenic wheat expressing WSMV proteins promises to facilitate the above research and may provide new sources of resistance. Objectives of Research: This project contributes to the Action Plan for National Program 303: Component 2A: Pathogen Biology, Virulence Determinants, and Genetics of Pathogens and Component 2B: Plant-Microbe-Vector Interaction. Over the next 5 years we will focus on the following objectives: Objective 1: Identify and characterize . . .
. . .  red winter wheat to hard white winter wheat. This change is necessary for the U.S. to remain competitive in world wheat export markets. 4. To coordinate the Hard Winter Wheat Improvement Program and supervise the Hard Winter Wheat Regional Performance Nursery Program. Page 7 Wheat Virology Project – Proposed New 5 year Project 2007-2012 “Wheat streak mosaic virus interactions with host and vector” Scientists: Roy French, Drake Stenger Problems to be Addressed: The long-term goal of this project is to reduce wheat yield losses due to wheat streak mosaic virus (WSMV). Development of novel disease . . .
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