摘要
本文以同一品种2003、2006年两度棉花田间调查和考种资料为素材,从产量结构的年度比较来看,2006年比2003年密度降低了7810株/hm2,单株成铃却多出14个,铃重增加0.4克,衣分提高了4个百分点,籽、皮棉产量分别增产16.8%和28.0%,差异达极显著。笔者从年度效应中分析提出扩行降密为增结蕾铃、减少脱落的有效途径之一。
This article analysed materials of cotton field investigation and check variety with same variety in 2003 year and 2006 year. Looking from annual compare of yielding structure, though density of cotton in 2006 year lower 7810 plants/ hm^2 than it in 2003 year. but individual plant bolls have 14 more than 2003 year. The author draw a conclusion from annual effect analyse that extend row and lower density is one of effective ways adding bolls forming and reduce bolls drop.
出处
《江西棉花》
2007年第2期8-11,共4页
Jiangxi Cottons
关键词
抗虫棉
扩行降密
年度效应
Zoophobous cotton
extend row and lower density
annual effect.
