WATER RELATIONS AND YIELD OF FOUR MUNGBEAN CULTIVARS UNDER DIFFERENT DATE OF SOWING

Abstract

The experiment was conducted at Sher-e-Bangla Agricultural University farm, Dhaka during the kharif -1 season from March to June, 2010 to study the water relations and yield of four mungbean cultivars under different date of sowing. The treatment consisted of four mungbean varieties viz., V 1 = BARI mung- 4, V = BARI mung- 5, V 3 = BARI mung- 6, V = BU mung- 4, and three sowing date, viz., S 1 = 9 March, S 2 = 24 March, S 3 4 = 8 April. The experiment was laid out in a randomized complete block design (RCBD) with three replications. Variety had significant influence on relative water content (RWC), exudation rate (ER); stem, leaf, root and total dry matter; pod length, pods per plant, seeds per pod, 1000seed

weight, seed yield, stover yield, biological yield and harvest index. BARI mung- 4 showed the highest seed yield showing the highest value of yield parameters and harvest index, RWC and ER, whereas, BU mung-4 produced the lowest seed yield. Sowing date also influenced significantly the mentioned parameters. Mungbean sowing on 24 March produced the highest seed yield followed by the sowing on 9 March and 8 April by producing the highest value of yield parameters, biological yield, RWC and ER. Among the interactions, BARI mung-4 sowing on 24 March produced the highest seed yield.

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