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中棉所七号(原名为乌干达三号以下简称中七),经中国农科院棉花研究所系统选育而成。1970—1975年在洛阳地区试验,表现了增产显著,品质优良,耐早性强等特点。1977年全县棉产队4.7万亩棉田,全部种植中七良种。并支援上海、浙江、江西、湖南、湖北、江苏、安徽、河北等省市及省内各地种子三百多万斤。就目前情况看,中七在黄河流域,特别在干旱棉区种植面积继续扩大,现根据几年种植,对中七提纯复壮与推广利用提出一些看法,供参考。
Cotonou No. 7 (formerly known as Uganda No. 3 hereinafter referred to as VII), the Chinese Academy of Agricultural Sciences Institute of Cotton Breeding. 1970-1975 in Luoyang area test, showing a significant increase in yield, good quality, resistance to early strong and so on. In 1977 the county cotton production team 47000 acres of cotton fields, all planted in seven varieties. And support for Shanghai, Zhejiang, Jiangxi, Hunan, Hubei, Jiangsu, Anhui, Hebei and other provinces and cities throughout the province more than 300 million kilos of seeds. As for the current situation, in the Yellow River Basin, especially in the arid cotton area planted area continues to expand, according to a few years planted, the seventh purification and rejuvenation of the use of some ideas for reference.