摘要
以多穗型冬小麦品种烟农 1 9为试材 ,通过 2 0 0 1～2 0 0 2年连续 2a试验 ,研究多穗型小麦高产群体叶面积的质量特性与产量及其构成因素的相互关系。结果表明 :进一步提高多穗型小麦品种产量必须在群体数量适宜的基础上优化群体质量 ,即在形成适宜群体及群体叶面积的前提下 ,提高有效叶面积率、高效叶面积率 ,争取穗大粒多 ,使产量三要素在高水平上协调发展 ,同步提高。并指出优化小麦群体质量 (叶与产量三要素)的关键技术是适宜的基本苗数 。
Through the two-year's (2001-2002) experiment, the cor relations betwee n the quality characteristic of leaf area of multi-spike type wheat cultivar-Yan nong 19 high-yielding population and yield components were studied. Results show ed that to further increase wheat yield, population quality must be optimized on the base of population quantity, which was to say effective leaf area percentag e must be increased on the base of appropriate population leaf area. The key te chniques were to make sure the proper basic seedling, to utilize tillers reasona bly and to improve fertilizer application.
出处
《安徽农业科学》
CAS
2003年第2期179-181,共3页
Journal of Anhui Agricultural Sciences
基金
国家科技部农业科技成果转化资金项目 (编号 0 2EFN2 1370 0 34 9)
