福建农业学报2012，Vol.27Issue(9)：968-972,5.
福建超级稻品种的产量结构特征分析
Characteristics of Yield Components of Super-rice Cultivars in Fujian
摘要
Abstract
Relationship between yield and yield components of the Super-rice cultivars in Fujian was studied. It aimed to provide reference for Super-rice breeding and high yield cultivation. Four Super-rice cultivars bred in the province and approved by China s Ministry of Agriculture, along with Shanyou 63 as the control, were used for the study. The results showed that the Super-rice yielded 10 t · hm -2, which was significantly or very significantly higher than the control. The common characteristics of the yield components included (a) the number of grains per spike was very significantly higher than the control; and (b) the yield did not significantly correlate to any individual yield component, but highly and positively correlated to the grains per spike. The path analysis indicated that the grains per spike had the greatest contribution (i. e. , 70.55%) to the yield, among all factors. Rice yield was very significantly correlation to the sink size (number of panicle X number of grains per panicle X grain weight). The dominant factor for a high yield Super-rice was believed to be the large sink size, which depended mainly on total grains per unit area or the number of grains per panicle. Consequently, in order to improve the rice yield, large panicles should be cultivated within a certain number of panicles.关键词
超级稻/产量构成/相关分析Key words
super-rice/ yield component/ correlation analysis分类
农业科技引用本文复制引用
杨惠杰,房贤涛,何花榕,谢祖钦..福建超级稻品种的产量结构特征分析[J].福建农业学报,2012,27(9):968-972,5.基金项目
福建省科技计划项目-省属公益类科研院所基本科研专项(2010R1023-5) （2010R1023-5）
福建省财政专项——福建省农业科学院科技创新团队建设项目(CXTD2011-13) （CXTD2011-13）
福建省农业科学院青年人才科技创新基金(2009QB-9) （2009QB-9）
