首页|期刊导航|中国农业科学（英文版）|The Stimulating Effects of Rewatering on Leaf Area of Winter Wheat Suffering Water Stress
中国农业科学（英文版）2002，Vol.1Issue(2)：177-183,7.
The Stimulating Effects of Rewatering on Leaf Area of Winter Wheat Suffering Water Stress
The Stimulating Effects of Rewatering on Leaf Area of Winter Wheat Suffering Water Stress
摘要
Abstract
After water stress at various levels and durations at different growth stages, rewatering could greatly stimulate the leaf area development of winter wheat. The results showed that the stimulation effect changed with water stress time, degree and duration. Rewatering under earlier stress had greater stimulation effect on leaf area than that under later stress. Higher stimulation effect was observed under severe water stress than that under moderate stress. Longer duration of stress resulted in low stimulation effect. In spite of the greater stimulation effect under severe and longer stress, the final leaf area in these situations was lower than that under moderate stress and shorter duration. Whenever the stress occurred, the stimulating effect was due to the increase of the leaf area of the tillers. Once the leaf on the main stem emerged during stress period,rewatering had no effect on its size, and consequently its leaf area. The stimulation of rewateirng on leaf area contributed to the final grain yield by 45% under moderate stress, and 67% under severe stress. Although the stimulation partly compensated for the loss during stress, the final leaf area and the grain yield could not reach the level without water stress.关键词
Water stress/Rewatering/Winter wheat/Stimulation/Leaf area/YieldKey words
Water stress/Rewatering/Winter wheat/Stimulation/Leaf area/Yield引用本文复制引用
LIU Xiao-ying,LUO Yuan-pei,SHI Yuan-chun..The Stimulating Effects of Rewatering on Leaf Area of Winter Wheat Suffering Water Stress[J].中国农业科学（英文版）,2002,1(2):177-183,7.基金项目
Project was supported by National Fundamental Research and Development (No. G1999011709 ) and the National Natural Science Foundation (No.49971042). （No. G1999011709 ）
