| In solar greenhouse, the pot experiment was conducted to study the effect of different soil moisture conditions during four growing stages (early florescence stage, early fruit stage, exuberant fruit stage and late fruit stage) on transpiration (Ts) and yield of cucumber (Cucumis statirus L.) mulched with plastic film. The results showed that the amount of water consumption in early florescence stage and early fruit stage was lower than that in late fruit stage, and it was the highest in exuberant fruit stage. There was a close quadratic relationship between total yield and total amount of water consumption. The highest yield of 83 028 kg/hm2 was obtained under optimal irrigation amount of 399.8 mm. Moreover, water sensitivity indices went down successively with the sequence of exuberant fruit stage, late fruit stage, early fruit stage and early florescence stage, which was identical to water consumption pattern. |