This paper reported the effects of water stress and nitrogen nutrition on root and seedlinggrowth and WUE;the most efficient way to promote root growing,to improve WUE of wheat. The study was conducted in a kind of wooden boxes (20 cm×6 cm×50 cm)with 7 replications. The contemporary wheat variety, Xiaoyan No. 6 was used. Wheat seedling grown between nylonnets were harvested at 47 days after sowing. As water stress increasing , RL. ,RDW, LA andWUE decreases observably under condition of soil water content...
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