小麦品种成株期抗条锈病鉴定因素相关性及聚类分析

摘要

Adult resistance evalution and the correlation between the factors were studied by natural inoculation, and cluster was also investigated based on 241 wheat cultivars which comes from the wheat growing regions of China in this paper. The correlation among the three resistance components indicates that there is positively relationship between infected type was and finally disease index and prevail rate, the results show there was 39 high resistance cultivars by resistance identifying and clustering (16. 18%), 111 middle resistance cultivars (46. 05%) , 68 middle susceptibility cultivars (28. 21%), 23 high susceptibility cultivars (9. 54%), respectively.%采用自然诱发对241个小麦品种进行大田成株期抗条锈病鉴定,并对各因素相关性进行分析及聚类划分,经相关性分析表明反应型和普遍率、终期病情指数呈极显著正相关性.抗性鉴定和聚类划分结果显示有39个高抗品种,占总数的16.18％；111个中抗品种,占总数的46.05％；68个中感品种,占总数的28.21％；23个高感品种,占总数的9.54％.