Soybean research white paper

New marketing tactics by the chemical companies now encourage producers to use fungicides for reasons other than disease control i. NCERA members have pooled their soybean fungicide trial data, and a combined meta-analysis is being conducted to determine the benefits, if any, of the use of foliar fungicides on soybeans in the absence of disease. As an outcome of these discussions, plans are under development to produce a fungicide efficacy table for soybean diseases similar to that produced by the NCERA Wheat Disease Committee. Todays producers are becoming more sophisticated in the ways in which they obtain research and crop management information.

Many of them are increasingly using the internet as a source of information as well as podcasts and videocasts e.

Because of this, information from NCERA projects needs to be prepared for delivery in multiple formats. There are several examples of how the committee is adapting educational information for the modern soybean grower. Working with the Plant Management Network www. Over ten soybean disease-related webcasts are available currently, and more are in development. NCERA members will continue to update webcasts as needed and develop new webcasts as new issues arise. The Plant Health Initiative website www. The site also provides links to state specific information where available.

Soybean disease information on this site will continue to be updated as new information becomes available. Although this is primarily a NCERA Soybean Rust Committee activity, diseases other than soybean rust are monitored and reported through this site, and information regarding current disease levels in specific areas of specific states and disease management recommendations are provided.

Results of collaborative research projects will be reported at scientific meetings and be published in peer reviewed journals. Communication of these findings will also be made available to producers, commercial field managers and agriculture industry personnel through Plant Disease Management Reports, fact sheets, web site materials, field days, and educational offerings in traditional Extension meeting formats.

Surveys of the impact of information delivered will occur, depending on funding availability. Officers are to include a chair and secretary who is the chair-elect. Officers will be elected for a one year term. Members of NCERA regularly publish collaborative efforts in peer reviewed journals, disease management reports, Extension bulletins and on web sites. The following list highlights those citations that demonstrate collaborative efforts.

Refereed Journal Articles 1. Diers, B.

Registration of AxN soybean germplasm with partial resistance to Sclerotinia stem rot. Crop Sci. Donald, P. Martin, P. Sellers, G. Noel, A. MacGuidwin, J. Faghihi, V. Ferris, C.

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Grau, D. Jardine, H.

Soybean Research: Health Benefits of Colored Soybeans

Melakeberhan, T. Niblack, W. Stienstra, G. Tylka, T. Wheeler, and D. Assessing Heterodera glycines-resistant and susceptible cultivar yield response.

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Dorrance, A. Isolation, storage, pathotype characterization and evaluation of resistance for Phytophthora sojae in soybean. Plant Health Progress doi Phytophthora root and stem rot of soybean. The Plant Health Instructor. Gao, X. Interactions between soybean cyst nematode and Fusarium solani f. Phytopathology Guzman, P. Neece, D. QTL Associated with yield in three backcross-derived populations of soybean. Harmon, C. First report of Phakopsora pachyrhizi telia on kudzu in the United States. Plant Disease Hill, J. Identification of field tolerance to Bean pod mottle and Soybean mosaic viruses in soybean.

Hobbs, H. Green stem disorder of soybean. Plant Dis. Hyten, D. Map location of the Rpp1 locus that confers resistance to Phakopsora pachyrhizi soybean rust in soybean. Crop Science Isard, S. The effect of solar irradiance on the mortality of Phakopsora pachyrhizi urediniospores. Lynch, T. First report of soybean rust caused by Phakopsora pachyrhizi on Phaseolus spp. Malvick, D.

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Association between genotypes of the brown stem rot pathogen Phialophora gregata and resistant and susceptible soybean cultivars in the north-central United States and Ontario. Canadian Journal of Plant Pathology Miles, M. International fungicide efficacy trials for the management of soybean rust. Differential response of common bean cultivars to Phakopsora pachyrhizi. Mueller, D. Application of thiophanate-methyl at different host growth stages for control of Sclerotinia stem rot in soybean.

Crop Prot. Efficacy of fungicides on Sclerotinia sclerotiorum and their potential for control of Sclerotinia stem rot on soybean. Mueller, E. Seasonal progression, symptom development, and yield effects of Alfalfa mosaic virus epidemics on soybean in Wisconsin. Mullen, J. Sikora, J. McKemy, M. Palm, L. Levy and R. Pedersen, P. Potential for integrated management of soybean virus disease. Schneider, C.

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Hollier, H. Whitam, M. Palm, J. McKemy, J. Levy, and R. Wrather, J. Effects of diseases on soybean yields in the United States to Tyler, B. Putnam, N. Terry, A. Phytophthora genome sequences uncover evolutionary origins and mechanisms of pathogenesis.

Statement of Issues and Justification

Science Ziems, A. Response of Soybean cultivars to Bean pod mottle virus Infection. Plant Disease. Extension Publications Dorrance, A. Draper and D. Hersham, Eds. Using foliar fungicides to manage soybean rust. Field crop fungicides for the North Central United States. Soybean Rust: What is Your Risk?. National circular printed by the ipmPIPE. Soybean rust management with foliar fungicides. Evaluation of Folicur sensitivity and its effect on soybean yield in Iowa, Illinois, and North Dakota, Managing frogeye leaf spot and charcoal rot in the North Central region.

Malvick, G. Hartman, Indiana, T. Soybean is rich in protein, which is great for the humans and animals eating it. But this high protein content comes at a cost. To make protein, soybean plants need a lot of nitrogen. The plants get some of the nitrogen they need by working with specialized bacteria in the soil.

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These bacteria live in root nodules. They pull nitrogen from the atmosphere and convert it to a form the plants can use. But this process—biological nitrogen fixation—may not provide all the nitrogen soybean crops need. Farmers may have to apply nitrogen fertilizer as well. This could remove the need to apply additional nitrogen fertilizers.

Hungria, lead author of the study, and her colleagues coated soybean seeds with the bacteria the usual method used by growers. They supplied additional bacteria by spraying it on the plants during other stages of growth. Soybean plants that received the additional spray inoculation developed more root nodules. And more nodules led to higher yields. Spraying bacteria on the soy fields during growth pushed up yields even further. The increase in root nodules after additional spray inoculation surprised Hungria and her colleagues.

Previous research indicated that each nodule makes it more difficult for soybean plants to develop subsequent ones. But in this study, soybean plants were able to form new nodules when researchers provided more bacteria.