摘要
在群体条件下，对旱地杂种小麦的主要农艺性状及其与产量的关系进行了分析。结果表明：旱地杂种小麦的株高、分蘖成穗率、穗数、穗粒数、生物产量和经济产量具有明显超标优势。强优势组合的穗粒数、穗粒重优势突出。穗数、穗粒数、生物产量与经济产量呈显著或极显著相关。穗粒数、穗粒重对产量的直接作用较大。筛选强优势组合时，应重点对穗粒数和穗粒重进行正向选择。
On the condtion of mass,the main agronomic character of hybrid wheat in dryland and the relation between the main agronomic character and yield are analysed. The results showed that the plant height, the rate of rertile tillers.spikes mumber biomass yield and economic yield of hybrid wheat in dryland hat obvious heterosos compared with CK.The heterosi of grain mumber and weight per ear of strong superiority crosses was prominent. Spikes mumber per unit of land and grains mumber and weight per ear, biomass yield and economic yield showed obvious or extremdy obvious correlation. direct Grains mumber and weight per ear had a direct effect onyield. They must be selected in positive, order when the strong superiority crosses was sifted.
出处
《干旱地区农业研究》
CSCD
北大核心
1999年第3期1-5,共5页
Agricultural Research in the Arid Areas
基金
陕西省科技发展计划项目-小麦杂种选育
