“虎优211”系湖南杂交水稻研究中心干1982年用浙江省嘉兴市农科所的农虎26A与我中心的C培211配组育成,属迟熟中粳类型。1984年参加新组合比较试验,11个点平均亩产425.45公斤,比对照农虎6号增产11.2%,达极显著水平,居参试14个组合第3名。1985年在湖南汉寿县西湖农场试验,亩产53 “Huyou 211” is a hybrid rice research center in Hunan Province. In 1982, it was bred with Nonghu 26A of Jiaxing Agricultural Science Institute of Zhejiang Province and C Pei 211 of our center. In 1984 to participate in the new combination of comparative test, 11 points average yield 425.45 kilograms, compared with the control of Nonghu 6 11.2% increase, reaching an extremely significant level, ranking the first 14 combinations of the first three. 1985 in West Lake Farm in Hanshou County, Hunan test, 53 acres