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自一九七五年开始,我所以V_(41)不育系为基础材料,用抗稻瘟品种珍白为转育对象,采用异地增季办法加速世代繁育。经过七代达到连续回交和选择,现已完成了核置换,植株性状和珍白相似,不育性整齐稳定。测配各组合在海南试种鉴定的基础上,一九八○年晚季选珍白A×IR_(661)组合进行生产力测定,试种结果获得成功,平均亩产突破千斤,成为我所历年来连作晚稻大面积产量最高的一个杂优新组合。全区制种近3000斤,一九八一年将有一定的示范面积。
Since 1975, I have used V_ (41) CMS as the basic material and used Zhenbai, an anti-rice blast variety, as the breeding target. After seven generations to achieve a succession of backcrosses and options, has now completed the nuclear replacement, plant traits and Zhen Bai similar to sterility neat and stable. On the basis of the testing and identification of Hainan varieties in the test of late summer in 1980, the combinations of the two varieties were tested for productivity. The result of the trial was successful. The average yield per mu was a breakthrough. As a result, Late rice a large area of the highest yield a new combination of miscellaneous. Seed production in the region nearly 3,000 pounds, in 1981 there will be a certain demonstration area.