PJB-2017-521
EVALUATION OF PROMISING MUNGBEAN MUTANTS AGAINST FOOT AND ROOT ROT, CERCOSPORA LEAF SPOT AND YELLOW MOSAIC DISEASES
Md. Emam Mehedi Masud
Abstract
BSTRACT The experiment was conducted to evaluate disease resistant mutants against foot and root rot, cercospora leaf spot and mungbean yellow mosaic disease under natural epiphytotic condition. 9 mutants collecting from the Bangladesh Institute of Nuclear Agriculture were used in this experiment. Among the mutants, MBM-07(S)-2 was found resistant against the foot and root rot disease followed by MBM-347-13, MBM-390-94-Y and MBM-656-51-2. Most of all plants of each plot were attacked by cercospora leaf spot of mungbean. The highest yellow mosaic disease incidence 84.76% was recorded in MBM-80 (LCAL) and the lowest 20.00% in MBM-527-114 followed by MBM-07-Y-2 (30.00%) and MBM-427-87-3 (33.67%). The highest yellow mosaic disease severity 26.84% was observed in MBM-80 (LCAL) and the lowest 0.38% was observed in MBM-527-114 followed by MBM-656-51-2 (1.04%) and MBM-427-87-3 (1.63%). The highest number of seeds per pod was counted in MBM-07-Y-1 and the highest 1000 seed weight was observed in BARI Moog-6 (50.00gm) followed by MBM-527-114 (45.67gm). The highest grain yield 204.44 kg was recorded in MBM-07-Y-1 followed by MBM-390-94-Y (186.66 kg). MBM-07(S)-2, MBM-07-Y-2, MBM-07-Y-1 and MBM-527-114 mutants showed less disease incidence and severity for foot and root rot, cercospora leaf spot and mungbean mosaic disease and gave better yield than other mutants. Keywords: Mungbean mutant, foot and root rot, cerospora leaf spot, yellow mosaic disease and disease resistant.
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