摘要
以辽宁省2004～2005年中晚熟水稻区试参试品种为试材,分析了水稻品种在不同试点的产量和产量结构的差异,方差分析表明:水稻品种产量的变化主要受环境效应影响,年份×地点互作效应是影响产量的主要随机因素。每穴穗数、每穗总粒数、成粒率、千粒重都与产量有显著线性效应,每穴穗数和每穗总粒数对产量的直接作用较大,每穗总粒数通过每穴穗数对产量表现为显著负向作用。
Using medium-late rice cultivars joined in Liaoning regional experiments between 2004 and 2005 as entries, the difference of yield and yield components of entries in different locations were analyzed. The results showed that the change of yield was affected by environmental effect and year × location interaction effect was the main random factor affecting yields. Panicles per hill, total grains per panicle, full kernel set, 1000-grain weight had significant linear effect on yield. Panicles per hill and total grains per panicle had great direct effect on yield, but total grains per panicle had significant negative effect on yield through panicles per hill.
出处
《北方水稻》
CAS
2007年第3期65-68,共4页
North Rice
关键词
水稻
增产潜力
高产
稳产
Rice
Yield-increasing potential
High yield
Stable yield
