摘要
为明确粳糯产量构成因素对产量的影响,采用灰色关联度法对15份粳糯种质的11个产量相关性状进行综合评价.结果显示,产量构成性状与产量的关联度值表现为:有效穗数＞结实率＞实粒数＞总粒数＞株高＞千粒质量＞生育期＞剑叶宽＞穗长＞剑叶长,关联度值分别为 0.785 6、0.738 2、0.723 8、0.710 5、0.708 9、0.675 2、0.673 7、0.667 5、0.661 3、0.655 5.灰色关联度综合分析结果表明,粳糯稻产量育种应注重有效穗数、结实率、实粒数以及总粒数的选择.
Abstract
In order to ascertain the influence of yield components on glutinous geng rice yield,grey correlation degree analysis was used to comprehensively evaluate the 11 yield-related characters of 15 glutinous rice germplasms.The results showed that grey correlation degree between yield components and yield in descending order were effective panicle＞seed setting rate＞filled grain number＞total grain number＞plant height＞thousand-grain weight＞growth period＞flag leaf width＞panicle length＞flag leaf length,and their correlation degree values were 0.785 6,0.738 2,0.723 8,0.710 5,0.708 9,0.675 2,0.673 7,0.667 5,0.661 3 and 0.655 5,respectively.Comprehensive analysis of grey correlation degree indicated that breeding of high-yield glutinous rice should focus on the selection of effective panicle,seed setting rate,filled grain number and total grain number.
国家科技期刊平台
NSTL
维普
万方数据