| 张成.陇东黄土高原旱地冬小麦生产影响要素及育种目标与策略[J].干旱地区农业研究,2006,(2):39~42 |
| 陇东黄土高原旱地冬小麦生产影响要素及育种目标与策略 |
| Influence factors of wheat production and its breeding objectives and strategies on Loess Plateau of east Gansu |
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| DOI：10.7606/j.issn.1000-7601.2006.02.09 |
| 中文关键词: 陇东 冬小麦 自然因素 育种目标 策略 |
| 英文关键词:east Gansu,winter wheat, natural factors,breeding objectives,strategies |
| 基金项目:庆阳市科研攻关计划“旱地冬小麦新品种选育”(GDK991-1-3)； 陇东学院基金(SZZK0310) |
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| 中文摘要: |
| 通过对自然因素分析指出,在陇东黄土高原旱地干旱少雨,低温寡照,病虫危害是该区冬小麦生产的主要影响因子。结合小麦育种实践,提出小麦产量结构模式,旱地品种特征特性和抗旱、抗寒、抗病、优质育种目标。提出了旱作种质引进创新,选择当地品种作亲本,采用聚和杂交,利用逆境定向选择,多生态水、旱交替选育,实行穿梭育种,多元化抗锈育种,加强优质专用品种选育的育种策略。 |
| 英文摘要: |
| By analyzing the natural factors,the paper points out that drought,low temperature,scant sunshine and the damages of diseases and vermin are the main factors that influence the planting of winter wheat in dry-lands on Loess Plateau of Gansu.According to the breeding practice,it puts forward the model of wheat yield structure,the characteristics of dry-land varieties and the objectives to breed new varieties with drought-resistance,cold-resistance,disease-resistance and high quality.It also introduces the breeding strategies such as importing and creating new genotypes of dry-farming,choosing local varieties as parents,adopting convergent cross,using directional selection in adverse circumstances,selecting under dry and humid environments alternatively,practising shuttle breeding,diversifying the breeding of rust-resistant varieties,and strengthening the breeding of high quality varieties for special purposes. |
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