Assessment of Selected Elite Lines of Soybean for Resistance to Major Diseases Under Natural Field Condition

Field screening of selected entries of soybean was undertaken against Charcoal rot, Soybean Yellow Mosaic Virus, Bacterial pustule and Alternaria leaf spot under natural epiphytotics, during 2014–15 at RRC, Amravati. Thirty two selected advance lines of soybean were screened along with nine checks for these diseases in protected and un-protected conditions and results revealed that three entries viz. SL-955, KDS-705 and JS 20–71 were shown Resistant High Yield (R-HY) reaction to disease complex while eleven entries exhibit Susceptible High Yield Tolerance (S-HY (T)) reaction to disease complex. Only three entries (JS 20–53, SL 982 and DS 2705) initiated Resistant Low Yield (R-LY) reaction. Rest of the tested advance lines showed Susceptible Low Yield (S-LY) reaction.