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1987～1988年为全国抗病区试第7轮。黄河流域参试品种6个,晋棉7号为对照;长江流域4个,中棉12为对照。为鉴定对比试验地发病情况,在保护区种感病品种,黄河流域冀棉11号,长江流域鄂沙28。全试验
1987 ~ 1988 for the national anti-disease zone test seventh round. Six varieties tested in the Yellow River Basin and Jinmian 7 as a control; 4 in the Yangtze River valley and 12 in the Central cotton as a control. In order to identify the incidence of the comparative trial, the susceptible varieties in the protected areas, Jimian 11 in the Yellow River Basin and 28 in the Yangtze River Basin. Full test