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锦单20号玉米新品种是锦州农科院以自选系Tied1为母本,301为父本育成的中晚熟耐密型玉米单交种,2009年经辽宁省农作物品种审定委员会审定。
Jindan 20 new varieties of maize is Jinzhou Academy of Agricultural Sciences to the selected line Tied1 as the female parent, 301 for the male parent bred maturity tight-maize single cross in 2009 by the Liaoning Provincial Crop Variety Approval Committee.