MORPHO-PHYSIOLOGICAL EVALUATION OF GRAIN LEGUMES AS INTERCROP

Abstract

An experiment was carried out at the Crop Physiology and Ecology Research Field, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during February to June 2017 to evaluate the performance of grain legumes under different light levels and to find out potential legume as intercrop. The experiment was laid out in a split plot design with four replications. Two light levels (full sunlight and partial shade) were assigned in main plots and three grain legumes mungbean (BARI Mung-5), blackgram (BARI Mash-3) and soybean (BARI Soybean-6) were distributed in subplots. Mosquito nets were used for maintaining partial shade. The grain yield plant-1 was decreased in different grain legumes under partial shade condition but the reduction in grain yield plant-1 was more in mungbean (31.25%) and blackgram (52.25%) and less in soybean (19.57%). The grain yield m-2 was reduced due to partial shade but the reduction in grain yield m-2 was significant in mungbean (47.54%) and blackgram (34.04%) but it was insignificant in soybean (4.35%). Greater leaf area, greater specific leaf area, better leaf dry weight, higher leaf chlorophyll content, greater proline accumulation in leaf, higher pods plant-1, higher seeds pod-1, greater grain size and better grain yield plant-1 under partial shade condition were contributed to better tolerance of soybean under partial shade.