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为适应生产发展,解决粮棉矛盾,增加复种指数,迫切需要早熟、丰产、优质适于黄河流域棉区麦(油)棉两熟连作的棉花新品种。我们于1975年从黑山棉1号中选出长绒单株23号,又从中23系中选出天然变异株经连续系统选择育成符合上述目标的棉花新品种——中棉所10号(原名中509)。1979年该品种,黄河流域适于耕作改制棉花品种
In order to adapt to the development of production, solve the contradiction between grain and cotton, and increase the multiple cropping index, it is urgent to need new varieties of cotton which are suitable for early maturity, high yield and good quality for wheat (oil) cotton double cropping continuous cropping in cotton area of the Yellow River Basin. In 1975, we selected Longjiang No. 1 from Heishan Mian 1, and we selected natural variation strains from the 23 series. The new cotton variety that meets the above objectives was selected by the continuous system selection - Zhongmian No. 10 In 509). The variety in 1979, the Yellow River basin suitable for farming cotton varieties