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杭931是浙江省杭州市农科所于1986年用红突31与香稻杂交官成的优质早舢新品种，1997年5月通过浙江省农作物品种审定委员会审定。产量表现1994年浙江省早稻育种攻关联合品比亩产421．zkg，比对照浙852增产2．7％，1994年一1995年杭州市区域试验平均亩产413kg和35Ikg，比对照浙85
Hangzhou 931 is a new breed of high-quality as early as newborn of Hangzhou Bureau of Agricultural Sciences in Zhejiang Province in 1986 with hybrids of Hongzhu 31 and Xiangao. It was approved by Zhejiang Province Crop Variety Approval Committee in May 1997. Yield performance In 1994, the breeding of early rice in Zhejiang Province was more than that of 421. zkg, Zhejiang 852 compared with the control increase 2.7%, 1994-1995 average test area of Hangzhou, 413kg and 35Ikg, compared with the control Zhejiang 85