INFLUENCE OF LOWER SEED RATE ON THE PERFORMANCE OF MUNGBEAN AND BLACKGRAM

Abstract

The experiment was conducted in the Farm of Sher-e-BangLa Agricultural University, Dhaka, during the period from March to May 2007 to study the influence of lower seed rate on the growth and yield of mungbean and blackgram. The experiment consists of two factors. Factor A: Crops DARt inung 6 and BALU mash I; Factor B: Seed rate, 30 kg seeds h&' (recommended dose). 27 kg seeds h ad (10% less than recommended dose), 24 kg seeds ha' (20% less than recommended dosc), 21 kg seeds ha' (30% less than recommended dose) and 18 kg seeds ha (40% iess than recommended dose). The two factors experiment was laid out in Split plot Desi,n with three replications. At 20, 30, 40, 50 DAS and at harvest the tallest plant (18.30 cm, 35.70 cm, 42.74 cm, 55.69 cm and 67.96 cm), maximum number of pods per plant (20.24), maximum pod length (6.98 cm), maximum seed yield per hectare (1.13 ton) and maximum stover yield per hectare (1.39 ton) was recorded from blackgram, while the shortest plant (15.64 cm, 30.45 cm, 36.51 cm, 50.91 cm and 61.55 cm), minimum number of pods per plant (18.10), minimum pod length (6.16 cm), minimum seed yield per hectare (1.01 ton) and minimum stover yield per hectare (1.24 ton) was found from mungbean. At 20, 30, 40, SODAS and at harvest the tallest plant (18.61 cm, 35.33 cm, 42.42 cm, 57.05 cm and 69.59 cm), maximum number of pods per plant (20.87), maximum pod length (6.95 cm), maximum seed yield per hectare (1 20 ton) and maximum stover yield per hectare (1.49 ton) was recorded from 2 kg seeds had while, the shortest plant (16.03 cm, 31.40 cm, 37.53 cm, 49.81 cm and 60.93 cm), minimum number of pods per plant (17.53), minimum pod length (6.04 cm), minimum seed yield per hectare (0.91 ton) and minimum stover yield (1.12 ton) was found from S5. At 20, 30, 40, 50 DAS and harvest the tallest plant (20.62 cm, 38.15 cm, 45.56 cm, 60.29 cm and 73.65 cm), maximum number of pods per plant (22.88), maximum pod kngth (7.39 cm), maximum seed yield per hectare (1.24 ton) and maximum stover yield per iicctarc (1.55 ton) was recordcJ from C7S2 , where as the shortest plant (13.40 cm, 26.60 cm, 32.14 cm, 44.57 cm, 53.18 cm), minimum number of pods per plant (14.17), minimum pod length (5.36 cm), minimu in seed yield per hectare (0.81 ton) and minimum stover yield (1.01 ten) was found from C1S5.