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Effect of Environmental Stress on Growth of Mung Bean

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INTRODUCTION-
Pulses play a vital role to meet the protein demand of human diet. Pulses are considered as the poor people’s meat as it is the cheapest source of protein. Mungbean (Vigna radiata L.wilczek) is a summer pulse crop with short duration (50-90 days) and high nutritive value. The seeds contain 22-28 % protein,60-65 % carbohydrates, 1-1.5 % fat, 3.5-4.5 % fibers a4.5-5.5 ash, it has many effective uses, green pods in cooking as peas, sprout rich in vitamins and amino acids. This crop can be used for both seeds and forage since it can produce a large amount of biomass and then recover after grazing to yield abundant seeds. It can be used in broilers diets as a non-traditional feed. In Bangladesh, per capita daily consumption of pulses is only 13.29 g/day (BBS, 2011). While the World Health Organization (WHO) suggests consuming 45 g/day per capita pulses in Bangladesh. To maintain the supply of this level, the Government of Bangladesh has to spend a huge amount of foreign currency each year. Annual import of pulses in Bangladesh is approximately 108000 m tons (BBS, 2011). Mungbean is highly adapted to the agro-climatic condition of Bangladesh. Though the agro-ecological condition of Bangladesh is favorable for Mungbean cultivation, its area under cultivation and total production are low in this country. In Bangladesh, they can be incorporated in between rabi/wheat and transplanted aman as summer pulses during April and May having the range of long term rainfall of 8 - 15 mm. However, during this pre monsoon time, there occur occasional heavy rains which cause serious damage to the crop. Before inventing techniques to overcome this problem, it is necessary to assess the losses due to water logging. Harmful effect of water logging on different physiological and yield attributes has been…...

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