摘要
2005-2006年对东北春麦区主要推广应用的54个品种(系)进行了抗秆锈病、白粉病和叶枯病鉴定。结果表明,在参鉴品种中,3份材料对白粉病表现抗病,占供试材料的6%;46份材料对秆锈病表现抗病,占供试材料的85%;11份材料对叶枯病表现中等抗病,占供试材料的20%。东北春麦区生产品种对秆锈病抗性表现较好,但也存在品种抗锈性下降的威胁;生产品种中普遍缺乏对白粉病的抗性,在育种中应加强新抗源的导入和应用;叶枯病发生普遍并且有逐年加重的趋势。针对以上情况,提出了解决办法。
Fifty-four spring wheat varieties(lines) cultivated in northeastern regine were identified during 2005 2006 for resistances to stem rust, powdery mildew and Helminthosporium leaf blight at seeding and adult stages, respectively. The results showed that there were 3 varieties resistant to powdery mildew,at six percent of all varieties; 46 varieties were resistant to stem rust, at eighty-five percent of all varieties; 11 varieties were moderate resistant to Helminthosporium leaf blight, at twenty percent against the others. The most varieties were resistant to stem rust, but there was still threat of resistance degressiveness; almost all the varieties identified lacked resistance to powdery mildew; Helminthosporium leaf blight was a common seen disease in the field and the disease severity degree went higher year by year. So we identified those varieties and hoped to offer parts of practical guidance for wheat breeding. Methods mentioned hereinbefore were discussed in this paper.
出处
《华北农学报》
CSCD
北大核心
2007年第B08期33-37,共5页
Acta Agriculturae Boreali-Sinica
基金
辽宁省科学基金(20062116)
关键词
小麦品种
秆锈病
白粉病
叶枯病
抗性鉴定
Wheat varieties
Powdery mildew
Stem rust
Helminthosporium leaf blight (HLB)
Resistance identification