PJB-2007-303
EFFICACY OF MICROBIAL BIOAGENTS FOR THE CONTROL OF COLLAR ROT DISEASE IN CHICKPEA
M. ASHRAF ZAHID*, SH. MUHAMMAD IQBAL, A. ALI AND S. HUSSAIN
Abstract
Study was conducted In vivo to evaluate the antagonistic effects of two microorganisms against collar rot disease of chickpea caused by the fungus Sclerotium rolfsii. The effect of microbial amendments viz., Vesicular arbuscular mycorrhizae (VAM) and root nodulating bacteria Rhizobium sp., on the collar rot disease in Cicer was studied individually and in combination when applied to the soil. The results depicted that 100% seedling mortality was recorded in the control treatment where only test fungus i.e., S. rolfsii was added to the soil. Maximum reduction in seedling mortality was obtained when VAM and Rhizobium sp. were applied in combination. Likewise, the two microorganisms when used alone significantly reduced the effect of disease on plant growth. Treatment with Rhizobium sp., had greater synergistic effect on plant height, shoot and root weight, nodules plant-1, pods plant-1 and 100-seed weight of chickpea as compared to VAM. It was inferred that both the amendments used have effectively improved various yield parameters by controlling the disease and reducing seedling mortality.
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