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盐优57系江苏省徐州农科所1982年以滇型盐粳902不育系与C57V恢复系配组成的杂交中粳新组合。该组合1984—1986年参加全国北方杂交粳稻区域试验,表现生育期适中、穗大粒多、产量优势突出、米质优良等特点。三年平均商产为594千克,较对照品种京
Yanyou 57 was a new mid-season japonica hybrid rice combination composed of Xuanyong Institute of Agricultural Sciences in Jiangsu Province in 1982 with the Dian-type salt japonica 902 male sterile line and C57V restorer line. The combination of 1984 to 1986 to participate in the northern hybrid japonica rice test showed that the growth period is moderate, spike large grain, yield superiority, excellent quality and so on. Three years, the average product for 594 kilograms, compared with the control varieties Beijing