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选育经过和产量表现 1975年原兴化县农业科学研究所应用系统选育法,从古巴稻自然变异系“2036—1”中根据籼稻粒重型育种设想,选出了35个优良株系,经多代选育,于1979年F_4时获得基本定型而理想的品系“34—21”。1980～1983年参加县品比试验,平均亩产541.4公斤,比对照南京11号增产12.2％;1984年参加扬州市中籼稻区域试验,亩产495.7公斤(产量幅
Breeding and production performance In 1975, the original Xinghua County Institute of Agricultural Sciences system selection method, from the Cuban natural variation system “2036-1” based on indications of heavy grain breeding in indica rice, 35 elite lines were selected, After many generations of breeding, in 1979 F_4 obtained the basic shape and the ideal line “34-21”. From 1980 to 1983, it took part in the county product ratio test, with an average mu yield of 541.4 kg, an increase of 12.2% over that of the control Nanjing 11. In 1984, it took part in the regional experiment of medium indica rice in Yangzhou with a yield of 495.7 kg per mu