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中单2号玉米杂交种是中国农科院作物育种栽培研究所,于1973年杂交而成的。1977年大面积推广,到1982年全国普及种植2500万亩以上,成为我国种植面积最大的玉米杂交种。特征特性中单2号在北京春播生育期110天,属中熟种。株高240厘米,穗位80厘米,茎秆坚硬,株形挺秀。
Zhong Dan No. 2 maize hybrid is a Chinese Academy of Agricultural Sciences Crop Breeding and Cultivation Institute, which was crossed in 1973. Large-scale popularization in 1977, until 1982 the national popularization of more than 2500000 acres, become China’s largest acreage of corn hybrids. Characteristics of a single No. 2 in Beijing spring sowing period of 110 days, is a mature species. Plant height of 240 cm, 80 cm ear, stalk hard, Zhu Ting-Sau show.