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Lodging Resistance of Aromatic CMS Line Zhongzhe A and Its Derived Lines
China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
- 1 China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
- 2 China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
- 3 China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
- 4 China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
- 5 China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
- 6 China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
- 7 China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
American Journal of Plant Sciences·Volume 10 (2019)·Pages 351–368·Published 28 February 2019·DOI10.4236/ajps.2019.103026
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Abstract
Nineteen rice combinations derived from Zhongzhe A and its derived lines, as well as Y Liangyou 1 as the control, were used to study lodging resistance by detecting plant height and some of the traits of culm and panicle that are related to lodging. The results indicated that the lodging resistance of 16 combinations was significantly stronger than that of Y Liangyou 1. Moreover, the lodging resistances of all combinations derived from Zhongzhe 2A, Zhongzhe 3A, Huazhe A and Zhong 1A were significantly higher than that of Y Liangyou 1. Additionally, the traits related to lodging were not identical within different CMS rice lines, and the relationship between plant height and lodging resistance was only significantly ( P < 0.01) detected in Zhongzhe 2A. Some traits of the second internode were closely related to lodging in all combinations, which can be used as an effective index in lodging resistance breeding in rice.
KeywordsCytoplasmic Male Sterile LineDerived LinesLodging ResistanceRice
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