INFLUENCE OF BORON AND MOLYBDENUM ON THE GROWTH AND YIELD OF MUNGBEAN I 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 was used as test crop. The experiment consists of two factors: Factor A: Boron (4 levels); 0 (B and Factor B: Molybdenum (4 levels); 0 (Mo 0 ), 1.0 (B 0 1 ), 1.5 (B ), 1.0 (Mo 1 2 ) and 2.0 (B ), 1.5 (Mo 2 3 ) kg B ha ) and 60 (Mo ) kg Mo ha -1 . The experiment was conducted following split plot design with three replications. The result revealed that treatment B 3 (2 kg B ha - 1 )

showed the highest plant height (47.22 cm), dry matter plant -1 (16.68 g), number of pods plant (30.36), pod length (8.97cm), seed yield (1.53 t ha -1 ) and stover yield (1.78 t ha (2 kg B ha - 1 ) showed the highest 1000-seed weight (44.28 g). On the other hand, B (0 kg B ha - 1 ) showed the lowest plant height (44.10cm), dry matter plant -1 (13.44 g), number of pods plant -1 (22.07), pod length (7.02 cm.), seeds pod -1 (7.91), 1000 seed weight (41.62 g), seed yield (1.18 t ha -1 ) and stover yield (1.53 t ha -1 ). The result also revealed that Mo 3 (2 kg Mo ha - 1 ) showed the highest 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 -1 -1 ), but B o ) and stover yield (1.85 t ha ) but Mo 2 (2 kg Mo ha - 1 ) showed the highest seeds plant -1 (10.89). On the other hand, Mo 0 (0 kg Mo ha -1 ) showed the lowest plant height (44.67cm), dry matter plant

(14.17g), number of pods plant -1 (24.14), pod length (7.05cm), seeds per pod (8.29), 1000-seed weight (40.31 g), seed yield (1.17 t ha -1 ) and stover yield (4.5 t ha ). The interaction of B 3 Mo 3 (2 kg B ha - 1 x 2 kg Mo 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 B (2 kg

- 1 - 1 3 Mo 2 -1 2 3 -1 -1 -1 B ha - 1 x1. 5 kg Mo ha - 1 ) showed t he hi ghest seeds per pod(12. 32) and seed yi el d (1. 74 t ha -1 ). On the other hand, B 0 Mo o (0 kg B ha -1 x 0 kg Mo ha ) showed the lowest plant height (40.21 cm), dry matter plant -1 - 1 (12.58 g),number of pods plant

(18.40), pod length (5.77 cm), seeds per pod (7.43), 1000 seed weight (38.05 g), seed yield (0.99 t ha -1 ) and stover yield (1.37t ha -1 ). It may 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.

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