Abstract
The research was carried out to investigate the effects of different irrigation levels on growth and yield of mungbean at the Agricultural Research Institute, Dera Ismail Khan, Pakistan. The experiment was laid out in a randomized complete block design with 3 replications. The results revealed that application of 5 irrigations i.e. 15, 30, 45, 60 and 75 Days After Sowing (DAS) gave significantly better performance than 3, 4 and 6 applied at different time intervals. However, the number of seeds/pod was not increased by irrigation levels. It was also noted that water stress reduced mungbean yield regardless of whether the stress was imposed when plant were in vegetative or reproductive stage. However, water stress that occurred at the reproductive stages, specially flowering and pod formation, affected seed yield more severely than its occurrence at other stages. Based on the results obtained, it is concluded that 5 irrigations should be applied to mungbean crop to get the maximum grain yield under the agro-ecology of Dera Ismail Khan or similar environmental conditions prevailing in other parts of the country.
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