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Ⅱ优838是四川省原子能应用技术研究所用Ⅱ－32A与辐恢838配组而成的三系杂交税稻新组合。1999年，江苏省建湖县第一次在庆丰镇北秦村试制360亩。抽穗扬花期间，遇到近50年来，同期未曾遇的分段（即8月11～15日、8月19～28日）连续阴雨5天和10天的情况，仍获得了较好收成。平均
Ⅱ You 838 is a new combination of three-line hybrid tax rice made by Sichuan Institute of Atomic Energy Technology Ⅱ-32A and Radix 838. In 1999, for the first time, Jianhu County, Jiangsu Province, trialled 360 acres in North Qin Village, Qingfeng Town. During the flowering and flowering period, in the past 50 years, there was still a good harvest even after 5 consecutive days of rainy days and 10 days of August in the same period (August 11-15, August 19-28). average