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三、示范和制种情况 “汕八选”于1980年开始大田鉴定和小面积试种,1982年宜昌雾渡河公社示范面积达700亩,平均亩产786斤,比“399”增产200—300斤以上。1981年在该公社制种19.9亩,产杂交种子2,995斤,平均亩产150.5斤;1982年制种73亩,在抽穗扬花期遭遇长期低温阴雨的不利条件下。亩产仍达78斤,比汕优2号制种136亩单产58.0斤增产34.4％。
Third, demonstration and seed production situation “Shan eight election” in 1980 began field appraisal and small area trial planting, 1982 Yichang Wudu River commune demonstration area of 700 acres, the average yield of 786 pounds, more than the “399” yield 200-300 Kg or more. 1981 19.9 acres in the commune seed production hybrids 2,995 pounds, an average yield of 150.5 kg; 1982 seed production of 73 acres, at heading and flowering encountered long-term low temperature rainy adverse conditions. Mu yield is still up to 78 pounds, Shanyou 2 seed 136 acres yield 58.0 kg yield 34.4%.