RELATIONSHIP OF QUANTITATIVE TRAITS WITH TWO VIRAL DISEASES IN MUNGBEAN (VIGNA RADIATA (L.) WILCZEK)

Mungbean germplasm comprising 262 lines was evaluated for resistance and susceptibility of MYMV and ULCV. Data on 9 quantitative characters viz., branches per plant, Pod length, pods per plant, seeds per pod, grain yield per plant, 100-grain weight, biological yield per plant and harvest index (%) showed that 211 accessions which were 80.53% of the population, proved to be resistant to MYMV, whereas remaining 51 (19.47%) were susceptible to the disease. In case of ULCV, 242 accessions which were 92.37% of the population, proved to be resistant, whereas remaining 20 (7.637%) were susceptible to the disease. Relationship of the disease with QTLs using 't' statistics revealed that MYMV was associated significantly with all the characters except with pod length and 100 seed weight. Similarly ULCV was also associated significantly with all the characters except pod length, pods per plant and 100 seed weight.