Vol. 11, Issue 8 (2022)

Author(s):
Kumari Surbhi, KP Singh and Himani Jeena

Abstract:
Soybean is one of the most important oilseed crops cultivated all around the world. Bacterial blight of soybean is a disease of considerable economic importance which renders the crop unproductive and negatively affects the yield. Use of resistant crop varieties is an important component of integrated disease management programs for bacterial blight. The development of bacterial blight depends on prevailing environmental conditions viz., maximum and minimum temperature, relative humidity, rainfall, windstorm and soil moisture. Thus, evaluation of resistant varieties under natural epiphytotic conditions in the field is essential. The present study was conducted with the aim of screening thirty promising soybean genotypes under field conditions for resistance against bacterial blight for five consecutive years (2017-2021). Differential resistance response was observed for the varieties during the five years of study. Thirteen soybean genotypes showing consistency in their resistance response against bacterial blight were identified.