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1982—1983年对征集的134个棉花品种(品系)进行苗期抗病性测定。结果是棉花品种对黄萎病菌的反应因菌株的致病力强弱而不同。对于致病力中等的Ⅱ型菌株VD-2~[2],高抗品种与抗病品种占绝大多数,分别为测定品种数的32.1％及27.6％,只有26.9％的品种表现感病;相反,对于致病力强的Ⅰ型(落叶型)茵株VD-8~[2],高抗与抗病品种只占少数,依次为5.3％及8.8％,绝大多数品种(77.9％)表现感病。在测定的品种中两年表现一致或基本一致的占所测定品种的73.9％。通过测定,筛选出对菌株VD-2高抗的品种19个,抗病品种13个,耐病品种8个。其中632-174和陕西所3215对菌株VD-8表现高抗,陕西5245、岱字55、Rch713、陕西68-420及河南7913等5个品种对菌株VD-8表现耐病。
During 1982-1983, 134 cotton cultivars (lines) collected were tested for disease resistance at seedling stage. The result was that the cotton varieties reacted to Verticillium dahliae differently because of their virulence. For the moderate pathogenic strains of type VD-2 ~ [2], the most resistant varieties and resistant varieties accounted for 32.1% and 27.6% of the tested varieties respectively, and only 26.9% of the varieties showed susceptibility. On the contrary, for the virulent type I (deciduous) strains VD-8 ~ [2], only a few were high-resistant and resistant varieties, followed by 5.3% and 8.8%, respectively, most of the varieties (77.9% Sick feeling. In the tested varieties, the performance of the two cultivars was consistent or basically consistent, accounting for 73.9% of the tested varieties. Through the test, 19 strains with high resistance to VD-2 were screened, 13 resistant varieties and 8 resistant varieties. Among them, 632-174 and Shaanxi 3215 were highly resistant to the strain VD-8. Five strains of Shaanxi 5245, Daizi 55, Rch713, Shaanxi 68-420 and Henan 7913 were resistant to the strain VD-8.