DETERMINATION OF THE FREQUENCY OF IRRIGATION ON THE YIELD OF SELECTED MUNGBEAN VARIETIES

Abstract

The experiment was conducted at the Agricultural Botany, field of Sher-e-Bangla Agricultural university. Dhaka during the Rabi season from October, 2011 to February. 2012 to study the influence of water deficit on the morphophysiology and yield attributes of mungbean. In the experiment the consisted of five mungbean varieties viz. BARI mung 2. BARI mung 3, BARI mung 4, BARI mung 5. BARI mung 6 and four different number of irrigation, 11 = three irrigations. 12 = two irrigations. 13 = One irrigation, 14 = no irrigation. The experiment was laid out in a two factors randomized complete block design (RCBD) with three replications. The days to emergence was not significantly affected due to the variety of mungbean. The maximum days to emergence was obtained from days to emergence BARI mung 4. Results showed that a significant variation was observed among the treatments in respect of majority of the observed parameters. The tallest plant was obtained from BARI mung 2. Treatment BAR.!mung 3 produced maximum number of leaves and branches. The earliest of days to first flowering, the longest time of days to last flowering, the earliest of days to first pod setting and days to first maturity were found in BARI mung 2. The highest numbers of flower per plant, pod length and number of seeds per plant (5.04) was recorded in BARI mung 2. The highest yield (1.39 tfha) was recorded in BARI mung 2. The tallest plant was obtained from three irrigation levels. Treatment three irrigations produced maximum number of leaves and branches. The earliest of days to first flowering, the longest time of days to last flowering, the earliest of days to first pod setting and days to first maturity were found in three irrigations. The highest number of flowers per plant and pod length was produced in three irrigations. The highest number of seeds per plant (6.92) was recorded in three irrigations. The maximum yield (1.31 t/ha) was obtained from three irrigations. Interaction effect of variety and number of irrigation had a significant variation on all parameter. The tallest plant and highest number of leaves were obtained from BARI mung 2 with three irrigation treatment. The earliest of days to first flowering, the longest time of days to last flowering, the earliest of days to first pod setting and the earliest of days to first maturity were found in BARI mung 2 with three irrigations. The highest number of flower per plant, pod length was produced in BARI mung 2 with three irrigations. The highest seeds weight per plant (10.63g) was obtained from BARI mung 2 with three irrigations. The highest yield (1.62 tlha) was obtained from BARI mung 2 with three irrigations.