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汕优21系杭州市种子公司用珍97A和恢复系26715配制而成。1985年引入我县,通过三年试验示范表现丰产性好、抗病性强,米质优,生育期适中等优点,1987年杭州市农作物品种审定委员会对汕优21进行审定,定为杂交早稻推广组合。 一、产量表现 1985年我县试种20亩,调查7.13亩,平均亩产43
Shanyou 21 Department of Hangzhou Seed Company with Jane 97A and rehabilitation department 26715 formulated. In 1985, it was introduced into our county. After three years of experiments and demonstrations, it showed good yield, good disease resistance, good quality of rice and moderate growth period. In 1987, Hangzhou Crop Variety Approval Committee examined and approved Shanyou 21 as hybrid early rice Promotion combination. First, the performance of production In 1985 I County trial planting 20 acres, the survey of 7.13 acres, the average yield 43