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协优57是安徽省“八五”水稻重点攻关课题组重大创新研究成果。由安徽省两项科技专利成果即广德县农科所选育的协青早A与安徽省农科院选育的2DZ057R配组而成的高产、优质、多抗杂交中籼新组合。1995年由怀远县种子公司买断专利首次大面积制种。1996、1998年先后经安徽省和全国农作物品种审定委员会审定通过,另定名为“皖稻59”。 江淮流域生产应用十多年的当家组合汕优63,近年种性严重退化,优势下降,抗性减弱,尤其是在白叶枯病重发区,减产十分严重。1989年白叶枯病大流行,仅安徽发病面积达38.26万hm~2,减产
Xieyou 57 is an important innovation research achievement of key research group of paddy in Anhui Province during the “Eighth Five-Year Plan” period. A new high-yield, high-quality, multi-resistant medium-indica hybrid rice combination composed of Xieqingzao A selected by two scientific and technological patents of Anhui Province, namely Guangde County Agricultural Science Institute and 2DZ057R bred by Anhui Academy of Agricultural Sciences. In 1995 Huaiyuan County seed company bought the first large-scale seed production. In 1996 and 1998, it was approved by Anhui Provincial and National Crop Variety Approval Committee and named as “Wando 59”. Production and application of the Yangtze River and Huaihe River Basin more than 10 years of the combination of Shanyou 63, serious degeneration in recent years, the advantages of decline, resistance weakened, especially in the bacterial blight re-emergence area, production is very serious. In 1989, the bacterial blight epidemic occurred in Anhui Province, with an incidence of 382,600 hm ~ 2 in Anhui Province and a decrease in output