玉米杂交种——旅曲,是我站1974年春用自交系旅28作母本,自交系曲43作父本选配而成的单交种。1974年秋播品比试验亩产788斤,比老品种盘安黄子增产50％,比浙单1号增产30％。1975年全省玉米区域试验产量居首位,平均亩产680.6斤,比对照浙单1号平均亩产492斤增产40.2呱。1976年种植面积迅速扩大。几年来,,经全省多处 Corn hybrid - Brigade, is my station in spring 1974 with inbred line brigade 28 as the mother of the inbred song 43 father paired single cross-species. In the autumn of 1974, 788 kg of mu per plant was produced, an increase of 50% over that of the old cultivar Pan-an, and a 30% increase over the Zhe-1. In 1975, the yield of maize in the province was the highest, with an average yield of 680.6 kg per mu, 49.2 kg more than that of the control Zhendan 1, and an increase of 40.2 kg. The area planted in 1976 expanded rapidly. In recent years, the province many