杂交中籼新组合协优57系安徽省农科院水稻所于1992年育成。1993年参加所内新组会鉴定，平均折合亩产698．3公斤，比对照汕优63的598．3公斤增产16．7％。1994年参加安徽省杂交中税区试，平均亩产623．5公斤，比汕优63增产8．87％。同年参加本所全国杂交中舢迟熟组区试，平均亩 57 new combinations of indica hybrid rice Xieyao Anhui Academy of Agricultural Sciences rice was bred in 1992. Participated in the new group in 1993 will be identified, the average yield of 698.3 kg per mu, more than the control Shanyou 63 598.3 kg increase of 16.7%. In 1994, Anhui Province hybrid tax zone trial, the average yield of 623.5 kilograms, an increase of 8.87% over Shanyou 63. The same year to participate in the national hybrid mid-late late group test, the average mu