| Response of different kinds of sterile cytoplasm of hybrid rice to drought |
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| DOI：10.7606/j.issn.1000-7601.2011.04.08 |
| Key Words: hybrid rice cytoplasm drought resistance physiology cytoplasmic effect |
| Author Name | Affiliation | | ZHANG Ling | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | YANG Guotao | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | XIE Chonghua | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | HU Yungao | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | LI Haiqing | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | PENG Yali | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | TANG Liqiong | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China |
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| Abstract: |
| Four kinds of sterile cytoplasm of hybrid rice commonly in production, WA-type, JW-type, G-type and K-type, and high combining ability maintainer line G46B were used to transfer for binary system with nuclear heterogeneity. And effects of different kinds of sterile cytoplasm on drought resistance of rice were studied under simulated drought stress in PEG. The results showed that sterile cytoplasm of different rice under drought stress in the physiological activity was significantly different. The responses of cytoplasm to the physiology of drought resistance regulated by nuclear genes also varied significantly. JW type sterile cytoplasm under 10% PEG drought stress had higher POD activity and Chla/b value but lower content of MDA than that of the WA-type, so it is good for improving the drought resistance of rice. |
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