Influence of Boron and Molybdenum on the Growth and Yield of Mungbean [Vigna radiata (L.) Wilczek]

Abstract

The experiment was conducted at the Agronomy field laboratory of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from March to May 2009 to study the effect of Boron and Molybdenum on the growth and yield of mungbean. The variety BARI mung-6 used as test crop. The experiment consisted of two factors as Factor A: Boron (4 levels); 0 (B0), 1.0 (B1), 1.5 (B2) and 2.0 (B3) kg B ha -1 and Factor B: Molybdenum (4 levels); 0 (Mo0), 1.0 (Mo1), 1.5 (Mo2) and 2.0 (Mo3) kg Mo ha -1. The experiment was conducted following split plot design with three replications. The result revealed that Boron at 2 kg ha-1 showed the highest plant height (47.22 cm), dry matter plant-1 (16.68 g), number of pods plant-1 (30.36), pod length (8.97cm), seed yield (1.53 t ha-1) and stover yield (1.78 t ha-1), but 1.5 kg Boron ha-1 showed the highest 1000-seed weight (44.28 g). The result also revealed that 2 kg Mo ha-1 showed maximum plant height (44.06 cm), dry matter plant-1 (16.59 g), number of pods plant-1 (29.51), pod length (8.92 cm), 1000-seed weight (44.69 g), seed yield (1.60 t ha-1) and stover yield (1.85 t ha-1) but 1.5 kg Mo ha-1 showed the highest seeds plant-1 (10.89). The interaction of 2 kg Boron ha-1 x 2 kg Molybdenum ha-1 showed the highest plant height (47.44 cm), dry matter plant-1 (17.75 g), number of pods plant-1 (33.07), pod length (9.35 cm), 1000-seed weight (45.49 g), and stover yield (1.97 tha-1) but 2 kg Boron ha-1 x 1.5 kg Molybdenum ha-1 showed the highest seeds per pod(12.32) and seed yield (1.74 t ha-1 ). It can be concluded that boron and molybdenum had a significant influence on the growth and yield of mungbean and 1.5 kg B and 1.5 kg Mo per hectare can be the optimum dose for higher yield of mungbean.