【摘 要】
：
六优1号是江苏省农科院粮食作物所培育成的杂交粳稻新组合,表现有明显的产量优势。现将六优1号的选育经过、产量表现及其栽培利用技术分述于下。 选育经过 1.不育系六千辛A
【机 构】
：
江苏省农科院粮食作物所,江苏省农科院粮食作物所,江苏省农科院粮食作物所,江苏省农科院粮食作物所,江苏省农科院粮食作物所,江苏省农科院粮食作物所
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六优1号是江苏省农科院粮食作物所培育成的杂交粳稻新组合,表现有明显的产量优势。现将六优1号的选育经过、产量表现及其栽培利用技术分述于下。 选育经过 1.不育系六千辛A的选育 六千辛A是江苏省农科院粮食作物所以BT型矮秆黄A为母本,中粳品系691/千重浪//Zenith(简称六千辛)为父本回交转育而成的中粳不育系。转育工作始于1977年,以后选不育株与父本连续回交。据测定:B_6F_1群体的不育株率即达100％,不育度达99.5％,B_8F_1不育株率和
Liuyou 1 is a new combination of japonica rice cultivated by food crops of Jiangsu Academy of Agricultural Sciences, showing obvious yield advantages. Liuyou 1 now after breeding, yield performance and its cultivation and utilization techniques are described below. Breeding 1. After sterile line Liuqianxin A Breeding Liuqianxin A is a grain crop of Jiangsu Academy of Agricultural Sciences so BT type dwarf yellow A as female, medium Japonica line 691 / Qianlang / / Zenith ( Referred to as Liuqian Xin) as the male parent backcross breeding of japonica CMS. Transfer work began in 1977, after the selection of sterile plants and male parent back to back. It was determined: B_6F_1 groups of sterile plants that is up to 100%, sterility of 99.5%, B_8F_1 sterile plant rate and
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