在保加利亚的一些小麦品种中,幼苗和成年植物对叶的抗性
1Agricultural Academy, Dobrudzha Agricultural Institute, General Toshevo, Republic of Bulgaria.
Vavilovskii zhurnal genetiki i selektsii
|October 9, 2023
概括
研究人员确定了冬季小麦品种对小麦叶的原因Puccinia triticina具有稳定的耐药性. 这些耐药品种可以用于育种计划,以开发具有更好的疾病防护的新小麦品种.
科学领域:
- 植物病理学 植物病理学
- 农业学是一种农业学.
- 遗传学 是一个遗传学.
背景情况:
- 由Puccinia triticina引起的小麦叶,对全球小麦产量构成重大威胁.
- 识别和利用耐药小麦品种对于可持续农业和粮食安全至关重要.
研究的目的:
- 在田间和温室条件下评估250条冬季小麦育种线对Puccinia triticina的耐药性.
- 为未来的育种计划确定具有种族特异性和种族非特异性耐药性的线条.
主要方法:
- 在三个季节的感染环境中对250个冬季小麦生产线进行现场选.
- 在温室条件下进行多种病型幼苗试验,以评估种族特异性耐药性.
- 与同源线的比较,以推断潜在的抗性基因.
主要成果:
- 20个小麦品种表现出不同程度的野外阻力.
- 20%的线路显示出特定于比赛的阻力,其中一条线路 (99/08-52) 显示出完全的阻力.
- 25%的苗木结合了种族特异性耐药性和成年阶段非特异性耐药性.
- 40%的人具有非种族特异性抗性,15%的人表现出"缓慢生"的抗性.
结论:
- 一些冬季小麦品种表现出对Puccinia triticina的稳定耐药性.
- 识别出耐药品种可以成为培育计划的宝贵资源,旨在开发耐叶的小麦品种.
- 需要进一步的遗传研究来证实在选定的线条中存在种族特异性耐药基因.
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