| 王军卫,张改生,刘宏伟,王小利,王永军.杂交小麦强优势组合选配分析[J].干旱地区农业研究,2004,(3):23~26 |
| 杂交小麦强优势组合选配分析 |
| Parental selection of heterosis crosses in hybrid wheat breeding |
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| DOI：10.7606/j.issn.1000-7601.2004.03.06 |
| 中文关键词: 杂交小麦 强优势组合 亲本选配 |
| 英文关键词:hybrid wheat heterosis crosses parental selection |
| 基金项目:国家自然科学基金项目(39970454)；国家863计划项目(2001AA241041)；国家杨凌农业生物技术育种中心资助项目(1999-B9)；陕西省"十五"攻关项目(2001K02-G01-01) |
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| 中文摘要: |
| 用8个表现突出的杂交组合,以小偃22作对照,从亲本和杂种一代产量性状、株型、株高、抗病性等农艺性状角度对其组合选配模式进行了分析。结果表明:8个组合在产量性状上均表现出正向的杂种优势。产量构成因素中以千粒重的优势为最大,其次为穗数和穗粒数;多穗型亲本与早熟大穗亲本型组配,且双亲株高在75～80cm左右,株型紧凑,抗病,较容易选配出理想的强优势组合,为杂种小麦生产实现产业化提供依据。 |
| 英文摘要: |
| Using 8 crosses and Xiaoyan 22, the agronomic characters of hybrid wheat such as yield, plant model, plant height and resistance to stripe rust were analyzed for the parents and F1. The result showed that all of the 8 crosses had positive heterosis, and in the yield characters, the heterosis of 1000-grain weight was higher than that of spike number and grains per spike. The ideal crosses were found between the female of multiple-spike type and the male of large-head type, whose plant height was 7580 cm, plant pattern was compact, and disease-resistance was high. The thesis may provide basis for the industrialization of hybrid wheat. |
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