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新株型水稻物质生产与产量形成的生理生态研究Ⅲ.单株产量与穗部性状的相关和通径分析
引用本文:郭玉春,梁康迳,吴杏春,梁义元,林文雄. 新株型水稻物质生产与产量形成的生理生态研究Ⅲ.单株产量与穗部性状的相关和通径分析[J]. 福建稻麦科技, 2002, 20(2): 1-4
作者姓名:郭玉春  梁康迳  吴杏春  梁义元  林文雄
作者单位:福建农林大学作物科学学院,福建,福州,350002;福建农林大学作物科学学院,福建,福州,350002;福建农林大学作物科学学院,福建,福州,350002;福建农林大学作物科学学院,福建,福州,350002;福建农林大学作物科学学院,福建,福州,350002
基金项目:福建省教委资助项目 (K96 0 2 1) (K9916 1(K2 0 0 10 6 6 ) )
摘    要:对 11个新株型稻 (NPT)穗部性状进行了相关与通径分析 ,结果表明 ,有效穗数和穗实粒数偏少是限制单株产量的主要因素。在改良新株型稻的育种中 ,宜采用提高单株有效穗数和增长一次枝梗总长、增加穗实粒数和减少着粒密度、千粒重的技术路线。

关 键 词:新株型稻  穗部性状  相关分析  遗传通径系数
修稿时间:2002-03-03

Physioecological studies on dry matter production and yield formation in New Plant Type Rice Ⅲ. Yield path analysis and correlation with panicle traits
GUO Yu-chun,LIANG Kan-jin,WU Xing-chun,LIANG Yi-yuan,LIN Wen-xiong. Physioecological studies on dry matter production and yield formation in New Plant Type Rice Ⅲ. Yield path analysis and correlation with panicle traits[J]. Fujian Science and Technology of Rice and Wheat, 2002, 20(2): 1-4
Authors:GUO Yu-chun  LIANG Kan-jin  WU Xing-chun  LIANG Yi-yuan  LIN Wen-xiong
Abstract:The result of genetic correlation and path analysis suggested that the low-nodtillers could be improved to increase productive panicle ,furthermore, seed-setting rates could be also improved by reduce of the number of secondary branches and increase of grain weight, in rice breeding. A further discussion about increase of seed-setting rates and yield of flow-limited varieties by the improvement of rice cultivation were also made in this paper.
Keywords:NPT Rice  Genetic path coefficient  pancile charactertics  correlation analysis
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