【摘要】 随抗条锈病育种的进展,品种抗病性不断有所提高。老的抗源材料,也是宝贵的种质资源。虽然品种的抗病性是其亲本抗病基因重组的结果,但必须进行精细的选择,才能纯化其抗病性。新育成的多个小麦品种(品系),与黑麦血缘有关,其抗锈性强。细胞学观察表明,它们均系1B/1R 类型,是难得的抗源亲本材料.更多还原

【Abstract】 With the progress made in breeding the rust-resistant wheat Va- rieties,the rust resistibility of wheat varieties has been much impro- ved.Nevertheless,the old antigen materials are still the Valuable germ plasms.Although the rust resistibility of wheat varieties is the result of gene recombination of their parent materials,careful selec- tion must be carried out in such a way that the purification of resis- tibility can be achieved.Many newly-bred wheat varieties(lines) have the close genetic relationships with rye so that their rust resis- tibility is strong.Cytological observation indicates that they belong to 1B/1R type which is a kind of antigen parent material hard to ob- tain.更多还原