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选用20个具有不同毒性谱的条锈菌菌系,对78个重要小麦品种材料进行了苗期接种鉴定,以得到的数据为基础,用类平均法对供试小麦品种的抗条锈性进行了聚类分析。鄂恩1号等19个品种被聚在一类,它们具有Yr9或与之相似的抗性;碧玛1号等10个品种被聚在一类,它们具有Yr1或与之相似的抗性;兰天5号等9个品种聚为一类,它们可抗所有供试菌系或仅对1～2个菌系感病;还有些品种被分别聚合为几小类。获知了一批具有未知抗条锈基因或基因组合的重要小麦品种的抗性特点,本结果可为小麦生产品种的合理布局与利用、抗锈育种中抗源的选用以及生产品种抗性变异预测提供重要依据。
Twenty wheat stripe rust strains with different toxicity profiles were selected to identify the seed germination of 78 important wheat cultivars. Based on the obtained data, the stripe rust resistance of the tested wheat cultivars Clustering analysis. Nineteen varieties of E’en 1 were clustered in a group with Yr9 or similar resistance; 10 varieties such as Bima 1 were clustered in a group with Yr1 or similar resistance; Lan Tian 5 and other 9 species clustered into a category, they are resistant to all tested strains or only 1 to 2 strains of susceptible; still some varieties were aggregated into several small classes. The resistance characteristics of a number of important wheat cultivars with unknown stripe rust resistance genes or combinations of genes were obtained. The results could be used for the reasonable layout and utilization of wheat cultivars, the selection of anti-rust breeding and the prediction of resistance variation of cultivars Provide important basis.