EFFECTS OF POWDERY MILDEW ON YIELD, YIELD COMPONENTS AND SEED QUALITY OF MUNGBEANS
Keywords:
Mungbean, powdery mildew, yield components, seed qualityAbstract
Powdery mildew caused by Podosphaera phaseoli (Zhao) U. Braun. is an important foliar disease of mungbeans. An experiment was conducted over two seasons to evaluate the loss due to the disease, using a split-plot design with the two main plots being with and without the application of fungicide. Five mungbean varieties and lines were in the sub-plots. Among these, one was highly resistant, one moderately resistant and three were susceptible to the disease. The experiment showed that powdery mildew reduced yield, seed weight per plant, seeds per plant, pods per plant and seed size by 26.21, 19.53, 33.22, 20.02, and 6.02 percent, respectively. It was also found that the disease caused the reduction of seed germination, seedling vigor and weight of bean sprout.
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