Pythium, seedling disease of soybean and more…

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2013-12-04
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Chilvers, Martin
Rojas, Alejandro
Jacobs, Janette
Matthiesen-Andersen, Rashelle
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Robertson, Alison
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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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Abstract

Seedling diseases of soybean and corn can cause significant losses through poor stand establishment and reduced plant vigor. Identifying the causal agent of seedling disease is not a simple process as the soil environment is complex and contains many thousands of microbe species but only a small portion of these actually cause disease. The primary causes of soybean seedling disease are Pythium spp., Phytophthora sojae, Rhizoctonia solani and Fusarium spp. In this study it was our objective to identify the predominant oomycete (Pythium and Phytophthora) species that cause soybean seedling disease. Only by understanding which pathogens cause disease are we are ultimately able to improve disease management.

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