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协优57是我省“八五”水稻重点攻关课题组研究配组而成的一个高产、抗病、优质、制种容易的杂交中籼新组合.1996年,1998年先后通过安徽省和全国农作物品审会审定,与汕优63相比,协优57具有显著的高产和较强抗病虫能力.1994年～1996年省区试、生产试验,比汕优63增产8%～10%,1995年～1996年参加全国杂交中籼区试,二年平均比汕优63增产5.76%,大田生产最高产量达11758.5kg/hm~2,对白叶枯病的抗性达中抗以上,比汕优63高1～2个级别,同时对稻飞虱、水稻纹枯病、稻瘟病均表现出较强抗性.截止1998年协优57已在全国推广33.33万km~2,累计增收稻谷2.23亿kg制种816.8万kg,加上节约施药成本300元/hm~2,共增加经济效益4.3亿元以上,是迄今为止唯一能在产最上超过王牌杂交稻汕优36.5%的新组合,尤其在长江、淮河流域的白叶枯重发区,更是替换汕优36较理想的新组合.
Xieyou 57 is a high-yield, disease-resistant, high-quality, easy-to-produce hybrid medium-indica rice combination which was researched and allocated by key research group of rice in the “Eighth Five-Year Plan” period in 1996. In 1996 and 1998, Compared with Shanyou 63, Xieyou 57 had significant high yield and strong resistance to pest and disease.Compared with Shanyou 63, the provincial trial and production test in 1994-1996 increased 8% -10% , From 1995 to 1996 to participate in the National Hybrid Indica trial, two years average yield increase of 5.76% Shanyou 63, field production of the highest yield of 11758.5kg / hm ~ 2, the resistance to bacterial blight more than resistance, more than Shanyou 63 was 1 ~ 2 in height, and showed strong resistance to planthoppers, rice sheath blight and rice blast. As of 1998, Xieyou 57 has been popularized 333,300 km ~ 2 nationwide, accumulating more rice 223 million kg seed production of 8,168,000 kg, coupled with the cost savings of 300 yuan / hm ~ 2, a total increase of economic benefits of more than 430 million yuan, is by far the only to produce more than the top hybrid rice Shanyou 36.5% of the new combination , Especially in the areas where the occurrence of white-leaf blight in the Yangtze River and the Huaihe River basin is replaced by the more ideal new combination of Shanyou 36.