GROWTH AND YIELD RESPONSE OF MUNGBEAN VARIETIES UNDERDIFFERENT WEED MANAGEMENTS

Abstract

The experiment was conducted in the Farm of Sher- e- Bangla Agricultural University during the period from August to November 2008 to study the growth and yield response of mungbean varieties under different weed managements. The experiment consisted of two factors. Factor A: Mungbean variety (2 levels ): V = BARI Mung-5 and V = BARI Mung-6; Factor B: Weed management (7 levels): W 0 2 = No weeding (Control), W 1 = One weeding at 15 days after sowing (DAS), W = One weeding at 25 DAS, W 3 = One weeding at 35 DAS, W = Two weedings at 15 and 35 DAS, W 5 = Two weedings at 25 and 45 DAS and W 4 = Weed free condition. The experiment was laid out in a factorial Randomized Complete Block Design (RCBD) with three replications. Results revealed that, the mungbean variety BARI Mung-6 stand superior than BARI Mung-5 in respect of plant height (58.45 cm and 56.14 cm), branches plant -1 6 (22.90 and 20.91), dry matter content plant (18.10 g and 17.82 g), pods plant -1 (77.30 and 74.92), seeds plant -1 (319.24 and 300.20), seed yield (1.51 t ha -1 and 1.34 t ha -1 ) and stover yield (2.29 t ha -1 -1 and 2.13 t ha ), respectively. Among weed management practices, maximum pods / plant (79.32) seeds/ plant(336.17), seed yield (1.62 t ha -1 ) & straw yield ( 2.53 t ha ) obtained from weed free which was at par to weeding once & two weedings. In intraction, the variety BARI Mung-6 weeded twice at 15 & 35 DAS produced maximum yield (1.75 t ha -1 ) as well as yield attributes. This treatment showed 68.3% higher seed yield than control.

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