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威优64是我们新近育成的一个杂交水稻新组合,父本测64系田间代号,原名为 IR9761—19—1,1979年从国际水稻所引进,当年用它同 V20A、珍汕97A,二九南1号 A 等进行测交,发现它具有恢复力和较好的配合力,但有的性状包括生育期和抗黄矮病在内还有分离,因而从中再连续两代选择优良单株进行分对提纯测交。通过鉴定,其中以 V20A×测64-7表现最好,现定名的威优64就是 V20A×测64-7。该组合从1981年开始,经过三年的试验、试种和
Weiyou 64 is a new hybrid rice combination newly bred by our parents. The male parent measured the 64-series field code, formerly known as IR9761-19-1, and was imported from the international waterworks in 1979. In the same year, it was used in the same field with V20A, Zhenshan 97A, South No. 1 A and other test found that it has resilience and better combining ability, but some traits, including growth and resistance to the yellow dwarf disease, there are separation, and therefore from two consecutive generations of excellent single plant selection Points on the purification test. Through the identification, among them V20A × measured 64-7 best performance, now named Wei You 64 is V20A × measured 64-7. The combination began in 1981 with three years of trials and trials