EFFECTS OF BORON ON THE GROWTH AND YIELD OF MUNGBEAN

Abstract

An experiment was carried out at the fann of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka. Bangladesh, during the period from March to July 2010 to study the effect of boron on the growth and yield of mungbean. The experiment consisted of two factors, viz.. Factor A: Mungbean varieties (2) V,: BAR!mung-1 and V2: BAR!mung-5; Factor B: Levels of boron (4 level); B0: Control (0 kg 1131303 haj: B1 : 1.0 kg E131303 hi'; 132: 1.5 kg 1-131303 hi' and B: 2.0 kg 1_131303 ha1. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data on different growth parameters, yield attributes and yield were recorded. The plant height of both varieties were measured at 20, 30, 40, 50, 60 DAS and at harvest, the height of V2 were found significantly higher than V, in each day of measurement. In V2 the higher plant heights were recorded at 20. 30. 40, 50, 60 DAS and at harvest which were 10.60. 21.65, 33.28, 41.41, 51.64 and 57.83 cm, respectively, whereas the shorter height of 9.01, 19.63, 29.56, 36.88, 48.96 and 54.80 cm were found from variety V1. Variety V2 produced significantly higher no. of pods/plant (18.91), seed yield (1.5 t hi'), stover yield (2.3 t hi') which were found superior to those of V, (18.03, 1.29 t hi'. 2.04 t hi'. respectively). The highest available boron in seeds (18.83 tg gm') was recorded from V1 and lower (18.36 jag gm') from V2. At 20, 30, 40, 50, 60 DAS and at harvest, the taller plant (11.06, 23.37, 35.04, 41.86, 53.64 and 59.52 cm) were observed from B3, while the shorter plants (8.33. 17.50, 26.56, 35.00, 45.25 and 51.67 cm) from B. The higher No. of seed yield, stover yield (1.53 t hi' and 2.40 t hi'.) in 133 which was statistically significant to B2 whereas the lowest values were (17.22, 1.18 t hi' and 1.88 t hi') observed in a). At 20, 30, 40, 50, 60 DAS and at harvest the tallest plant (11.51, 24.01, 37.28, 44.46. 54.33 and 60.96 cm. respectively) were observed from V2133, while the shortest (6.63. 15.43. 22.90, 31.85. 41.51 and 48.53 cm, respectively) from V,B0. The highest number of pods plant-' (19.75) was recorded from V2B2 and the lowest number (16.91) from V,B0. The highest seed yield (1.79 t hi') was found from V2132 and the lowest (1.04 t hi') from V,B0. The highest stover yield (2.49 t hi) was observed from V2133. whereas the lowest (1.56 t hi') from V1130. The highest available boron in seeds (24.33 .tg gnf') was observed from \'2133, whereas the lowest (13.33 pg gm') from V,B0. Considering performance and expenditure the cultivar BAR1 mung-5 and 1.5.0 kg H3B03 ha" was identified as proper in achieving potential growth and yield of inungbean.