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1990年组织商丘、周口、南阳地区农科所,新乡市农科所及邓州市农业试验站,睢县、郸城、灵宝县农科所和黄泛区农场农科所,汤阴县棉办、清丰县科委、河南省农科院经济所等12个单位,对8个参试棉花品种进行区域试验。其中参试两年的品种有郑466、中5765、商874—32和宛582;参试一年的品种有郑305、中237—2、中1276,对照为中12。一、试验设计和栽培管理统一采取随机区组排列,4次重复,5行
1990 organized Shangqiu, Zhoukou, Nanyang Prefecture Agricultural Science Institute, Xinxiang Agricultural Institute and Dengzhou City Agricultural Experimental Station, Pixian, Dancheng, Lingbao County Agricultural Institute and the Yellow River Pan farms Agricultural Institute, Tangyin County Cotton Office, Qingfeng County Science and Technology Commission, Henan Academy of Agricultural Economics, 12 units, 8 participating cotton varieties regional test. Among them, the varieties tested for two years included Zheng 466, Zhong 5765, Shang 874-32 and Wan 582; the cultivars of the one-year trial included Zheng 305, Zhong 237-2, Zhong 1276, and the control was Zhong 12. First, the experimental design and cultivation and management unified to take a random block arrangement, 4 times repeated, 5 lines