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对小麦条锈病菌生理小种鉴定方法,在原有基础上进行了三个方面的改进:(1)在大面积普采的同时,设置“小种锈集圃”。每个生态代表地区,采有50份菌样,即可反映当年小种区系的实际。(2)在分别鉴定了同一病叶上不同病班的小种类型后,对繁殖小种鉴定的菌样,应以单病班为单位,以避免小种间混杂。(3)病菌越夏期间,采用“夏孢子生物捕捉法”收集菌样,是较简易有效的方法。上述改进,经3—5年的实践,证明是可行的。
On the basis of the original three aspects of the improvement of the method of identifying races of wheat stripe rust germplasm: (1) At the same time large-scale universal mining, set up a “small-scale rust-nursery.” Each ecological representative area, mining 50 samples, you can reflect the current races of the actual species. (2) After identifying the races of different disease classes in the same diseased leaves respectively, the strains identified for breeding races should be treated as single disease classes in order to avoid interspecific hybridization. (3) During the summer when the bacteria are in summer, it is a simple and effective method to collect bacteria samples by the “summer spore bio-capture method”. The above improvement, after 3-5 years of practice, proves to be feasible.