摘要
1984、1985年两个陆地棉品种分别种植5种密度的试验,结果表明,产量组成因素中亩铃数对产量的正向效应最大,单铃重次之,衣分最小;亩铃数组成因素中成铃率对亩铃数的正向效应较大,亩蕾数较小,株高,果枝数、果节数和第一果枝高度四个植株形态性状中,果枝数和果节数通过提高成铃率与亩铃数对产量产生的正向效应较大,株高和第一果枝高度的效应较小。
Experimental data collected from 1984 to 85 for two cotton varietties (G.hirsutum L.) in five densities were used to assess the relative importance of certain characters in three groups on yield.The results show as follows,(1) Bolls/mu has the highiest positive effect on yield,followed by boll weight and lint percentage.(2) Boll-harvested percentage has the higher positive effect on bolls/mu than that of squares /mu.(3) Sypodias/plant and nodes/branches contribute more to yield than plant height and the height of the first sympodial node away from the ground,which influences yield mainly through raising boll-harvested percentage and bolls/mu.
出处
《棉花学报》
CSCD
北大核心
1990年第1期67-74,共8页
Cotton Science
关键词
棉花
形态性状
铃数组成
产量组成
cotton
morphological charactera
boll number component
yield component
