Response of Growth Characteristics and Yield in Mungbean (Vigna radiata L.) to Irrigation Water Volume

Abstract

For the purpose of studying the response of growth characteristics such as leaf water potential, leaf photosynthetic rate and yield of mungbean to soil water condition, a pot experiment was conducted under the different water conditions using two varieties, Mubarik and 880137. The significant differences were found among water treatments in all investigated items. However, the difference between the varieties showed several variations among the investigated items. There were significant differences of leaf water potential and leaf photosynthetic rate between varieties. However, the variety with higher leaf water potential did not coincide with the variety with higher leaf photosynthetic rate. Among the yield components, only pod number plant^-1 showed significant difference between varieties, and Mubarik's pod number plant^-1 was higher than that of 880137. However, seed number pod^-1 and 100 seed weight were higher in 880137 than Mubarik though these two components did not show the significant difference. Therefore, no significant difference of yield between varieties was found. The advantage of higher photosynthetic rate in Mubarik did not contribute to the yield and its components.