“寒优1027”是我所1985年用寒丰不育系与T1027恢复系杂交配组选育而成的一个杂交粳稻新组合。经过四年来的鉴定、预试、区试和生产试验示范,表现出稳产、高产、优质、多抗的优异特性,深受广大农户的欢迎。现将该品系的选育经过,历年来试验示范的产量表现及其栽培利用分述如下: 一、选育经过 (一)寒丰不育系的选育 1981年春在温室以BT型细胞质的“农进2号”不育系为母本,与中熟晚粳 “Han You 1027” is a new combination of japonica hybrid rice which was selected by our institute in 1985 with the combination of Hanfeng CMS and T1027 restorer lines. After four years of appraisal, pre-test, district test and demonstration of production test, it shows the excellent characteristics of stable yield, high yield, high quality and multi-resistance and is well received by farmers. Now the selection of the line after years of experimental demonstration of the yield performance and its cultivation and utilization are described as follows: First, the selection After (a) Hanfeng CMS breeding in the spring of 1981 in the greenhouse to BT cytoplasmic “ Nongjin 2 ”sterile line as the female parent, and late maturity in japonica rice