Influence of the Rag1 and Rag2 genes on aphid resistance and agronomic performance of soybean lines

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2010-12-01
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Fehr, Walter
Distinguished Professor Emeritus
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Proceedings of the Integrated Crop Management Conference
Iowa State University Conferences and Symposia

The Iowa State University Integrated Crop Management Conference is Iowa's premier crop production education event. No other program in Iowa brings together the diverse range of topics, slate of expert presenters and results of the latest University research.

The ICM Conference offers workshops focusing on the latest in crop production technology. Experts from Iowa and surrounding states will provide research updates and results in soil fertility, soil and water management, crop production and pest management.

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Aphids have been causing economic damage to soybean in the United States since 2000 (Hartman et al., 2001). High aphid density on soybeans causes the yield to decrease due to plant damage including leaf puckering, plant stunting, reduced pod and/or seed counts, and smaller seeds (Rice et al., 2008). In addition, the black sooty mold fungus that grows on aphid honeydew has a negative influence on soybean performance by reducing photosynthesis (Beckendorf et al., 2008).

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