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用新疆和北京、河北的小麦叶锈菌群体对新疆和中国农科院原子能所和新疆的小麦品种(系)交互接种测定毒力频率值。试验结果表明,感病材料对两地的小麦叶锈菌群体所测得的毒力频率值差异不明显,都为高值。而高抗和中抗材料所测得的毒力频率值表明新疆的叶锈菌群体的毒力高于北京、河北。本试验也鉴定了新疆和北京、河北叶锈菌的生理小种类型,在新疆的小麦叶锈菌群体中,洛10类群(对洛夫林10有毒力的类型)的出现频率相当高,占所测标样的44%,而北京、河北的仅占10%。这就提出了一个值得研究的问题,即新疆的小麦品种感病的较多,是否与新疆的小麦叶锈菌的毒力较强和洛10类群占的比例较高有关为此我们建议,在小麦抗锈性测定中,最好用当地的叶锈菌群体来测当地的小麦品种(系)和拟采用的抗源,将对抗锈育种提供更直接和有用的信息和依据。本试验的目的是研究新疆的小麦叶锈菌与北京、河北的叶锈菌在毒性方面的差异,从而为在不同生态条件下进行抗病育种,应采用当地的叶锈菌群体来测定当地的小麦品种(系)提供理论依据。
The frequency of virulence was determined by the wheat leaf rust population in Xinjiang and Beijing and Hebei by the interaction of Xinjiang Atomic Energy Agency (IAAS) and wheat cultivars (lines) in Xinjiang. The results showed that there was no significant difference in the virulence frequencies of susceptible materials between wheat leaf rust populations in the two regions, all of which were high values. The frequency of virulence measured by high resistance and medium resistance materials indicated that the virulence of leaf rust population in Xinjiang was higher than that of Beijing and Hebei. In this experiment, the ecotypes of the ecotypes of Puccinia recondita in Xinjiang and Beijing and Hebei Province were also identified. Among the Puccinia triticina populations in Xinjiang, the occurrence frequency of 10 groups (the virulent type of Lovrin 10) was very high, accounting for Measured standard 44%, while Beijing, Hebei, only 10%. This raises a question that deserves to be researched, that is, there are more susceptible wheat cultivars in Xinjiang, whether it is more virulent with the wheat leaf rust fungus in Xinjiang and higher in the proportion of 10 Luo population. Therefore, Wheat rust resistance determination, the local leaf rust group is best to measure the local varieties of wheat (lines) and the proposed anti-source, anti-rust breeding will provide more direct and useful information and basis. The purpose of this experiment is to study the differences in virulence of Puccinia triticina in Xinjiang and Puccinia triticina in Beijing and Hebei so as to test the resistance to disease in different ecological conditions. Wheat varieties (lines) provide a theoretical basis.