Induced mutations in mungbean

Mung bean seed (Manyar varieting) having 9% of water content, were irradiated with gamma-rays at doses of 0.1, 0.2, 0.3, and 0.4 kGy. M1 seeds were then randomly planted in the field. Selections for earliness, number of pod, resistance to some diseases and other characters were carried out in M2 generation and continued in M3. Purification were carried out in M4 generation. Preliminary yield trial were carried out in M5 generation by using Triple Lactice Design. The yield trial showed that 13 mutants are shorter and mutants are taller then the Control. Seven mutants were earlier in matulity as compared to the Control. Most of the mutant lines are resistant/moderately resistant to leaf spot disease and 29 mutant seems to be resistant/ moderately resistant to disease caused by Uromyces. Two mutants were showing a higher protein content and yield compared to the control. (author). 5 refs.; 2 tabs