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高密县是个老棉区,近几年,棉花枯黄萎病在部份社队发生蔓延及趋严重,致使棉花产量受到影响,品质变劣,个别地块甚至绝产失收,不能继续种植。一九七二年,他们在省防治棉花枯黄萎病协作组的帮助下,从陕西棉花研究所引进了九个抗病品种,在已封闭五年的康庄棉花良种场的绝产地块上进行试验鉴定,初步看出:“陕棉四号”、“416”等品种抗病丰产。据苗期、蕾期和后期削杆调查,发病指数为35.5～52.6,比
Gaomi County is an old cotton district. In recent years, the occurrence of cotton wilt in some communes and communities has become more serious and serious. As a result, cotton production has been affected and quality has deteriorated. Some individual plots have even lost their harvest and can not continue planting. In 1972, with the help of the Provincial Collaboration on Cotton Verticillium Wilt Control, they introduced nine disease-resistant varieties from the Shaanxi Cotton Research Institute on the dead plots of the Kangzhuang Cotton Variety Plant, which had been closed for five years Experimental identification, initially seen: “Shaanxi cotton four”, “416” and other varieties of disease-resistant yield. According to the seedling stage, bud stage and post-cutting survey, the incidence index of 35.5 ~ 52.6, than