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。
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.
出处
《福建稻麦科技》
2002年第2期1-4,共4页
Fujian Science and Technology of Rice and Wheat
基金
福建省教委资助项目 (K96 0 2 1) (K9916 1(K2 0 0 10 6 6 ) )
关键词
新株型稻
穗部性状
相关分析
遗传通径系数
NPT Rice
Genetic path coefficient
pancile charactertics
correlation analysis
