Resistance Evaluation of Tilletia foetida in Winter Wheat Varieties
In order to understand the resistance of winter wheat materials to Tilletia foetida in the main wheat producing areas of China,a total of 270 winter wheat varieties(lines)were collected in the laborato-ry.270 winter wheat materials(lines)collected from the laboratory depository were taken as materials,the resistance of each participating variety to Tilletia foetida was evaluated at the Langfang Experimental Base of the Institute of Plant Protection,Chinese Academy of Agricultural Sciences(CAAS)by the spike artificial inoculation identification method.The results showed that in the 270 winter wheat varieties(lines),54.81%were HR varieties.disease-resistant varieties(R)accounted for 21.85%;medium resist-ance(MR)varieties accounted for 11.48%;susceptible(S)varieties accounted for 11.48%;High suscep-tibility(HS)varieties accounted for 0.38%.Further analyzing the agronomic traits after their inoculation,the agronomic traits of the diseased plants changed significantly,showing significant changes such as reduc-tion in the number and length of spikes,and reduction in 100-grain weight.By synthesizing the perform-ance of disease resistance and agronomic traits of each variety,Woyu16,Zhumai548,Jiushenghe158,Lin-han16,Zhongyanmai818,Shengke189,Longjian119,Xinong1871,Qiule918 were screened out as germplasm materials resistant to Tilletia foetida.
万方数据
维普
