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Evaluation of Soybean Genotypes for Resistance to Charcoal Rot

A. Mengistu, P. A. Arelli, J. P. Bond, G. J. Shannon, A. J. Wrather, J. B. Rupe, P. Chen, C. R. Little, C. H. Canaday, M. A. Newman, and V. R. Pantalone

September 2011


Charcoal rot, caused by Macrophomina phaseolina, significantly reduces yield in soybean in the midsouthern United States. No commercial genotypes are marketed as resistant to charcoal rot. The objective of this study was to evaluate the reaction of MG III through V genotypes to M. phaseolina and identify lines with high levels of resistance. Identification of genotypes resistant to charcoal rot will be valuable to soybean breeders in planning future parental selections and in developing cultivars that benefit soybean producers.


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