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1回顾1.1试验审定体系日臻完善,审定推广大批优良品种1956年,当时的黑龙江省农业厅组织农科所、农业院校等单位成立了省农作物品种审定委员会,选择重点良种场、国营农场建立了品种区域试验点。1958年首次在全省确定推广了35个新品种,1972年开始省、地区、县三级试验、三级审定、三级推广的办法,1976年改为三级试验逐级上报,由省统一审定、命名。1986年在全省制定的6个积温带的基础上,试验审定实行了“五统
1 review 1.1 trial validation system is improving, validated and promoted a large number of fine varieties In 1956, the Heilongjiang Provincial Department of Agriculture organization of agricultural science institutes, agricultural colleges and other units set up a provincial crop varieties validation committee, select the focus of good breeding grounds, state-owned farms established Variety regional test point. In 1958, 35 new varieties were popularized in the province for the first time. In 1972, provincial, district and county trials, three levels of examination and three levels of promotion were started. In 1976, three types of tests were reported, one by one, Validation, naming. On the basis of 6 accumulated temperature zones established in 1986 in the province, the trial and validation implemented ”five systems."