| Effects of water deficit on the rate of leaf photosynthesis and root respiration in two winter wheat of different drought resistance |
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| DOI：10.7606/j.issn.1000-7601.2007.06.08 |
| Key Words: water stress winter wheat root respiration leaf photosynthesis protective enzymes |
| Author Name | Affiliation | | HOU Xiao-lin | College of Life Science Northwest A＆F University, Yangling, Shaanxi 712100,China；State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Water and Soil Conservation Chinese Acade my of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China | | LU Jin-yin | College of Life Science Northwest A＆F University, Yangling, Shaanxi 712100,China；State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Water and Soil Conservation Chinese Acade my of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China | | SHAN Lun | State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Water and Soil Conservation Chinese Acade my of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China |
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| Abstract: |
| Xinong 1043 and Shaan 253 of two winter wheat varieties were used pot and nutrient solution culture experiments to studied the effect of water deficit on the rate of leaf photosynthesis and root respiration during different growth stages under different water stress.The results showed that the drought resistance wheat Xinong 1043 rate of leaf photosynthesis,root respiration and activities of leaf protective enzyme in seedling stage are higher than that of the water sensitivity wheat Shaan 253 under same water condition.The rate of leaf photosynthesis and root respiration of the two wheat are lower under normal water condition than that of under water deficit;and Xinong 1043 are higher ratio of root respiration and leaf photosynthesis rate compared with Shaan 253 under the two water condition. |
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