SCREENING OF MUNGBEAN CULTIVARS AGAINST MUNGBEAN YELLOW MOSAIC VIRUS (MYMV) AND IT’S MANAGEMENT

Abstract

An experiment was conducted at the central farm of Sher-e-Bangla Agricultural University (SAU) during June to September, 2014. The screening experiment was carried out with seven mungbean varieties viz., V1 (BARI Mungbean-2), V2 (BARI Mungbean-3), V3 (BARI Mungbean-4), V4 (BARI Mungbean-5), V5 (BARI Mungbean-6), V6 (BINA Mungbean-7) and V7 (BINA Mungbean-8). The management experiment was carried out with seven different treatments viz., T1 (Admire), T2 (Aktara), T3 (Marshall), T4 (Confider), T5 (Garlic Extract), T6 (Neam) and T7 (Control) in BARI mungbean-5 against Mungbean yellow mosaic virus. The performance of the mungbean cultivars against Mungbean yellow mosaic virus differed significantly. The highest plant height (86.95 cm) was observed in V2 but the highest number of branch plant-1 (3.30), number of pods plant-1 (31.89), pod length (8.19 cm) and seed yield (2433 kg ha-1) were observed in V5 (BARI Mungbean-6). Again, the minimum disease incidence (2.22, 5.00 and 6.67% at 30, 40 and 50 DAS, respectively) and disease severity (8.67, 12.67 and 17.67% at 30, 40 and 50 DAS, respectively) were found in V5 (BARI Mungbean- 6). In management experiment, the different management option showed significantly different performance against the disease. The highest number of branch plant-1 (3.22) and seed yield (1877.33 kg ha-1) were observed with the application of T1 (Admire). The minimum disease incidence (1.33, 3.11 and 4.44% at 30, 40 and 50 DAS, respectively) and disease severity (8.66, 12.67 and 17.67% at 30, 40 and 50 DAS, respectively) were found with the application of T1 (Admire). Considering the performances of different management option against Mungbean yellow mosaic virus, the highest reduction of disease incidence (71.42%), disease severity (62.66%) and increasing the yield (85.29%) over control were recorded incase of application of T1 (Admire).