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豫单8号是河南农业大学玉米教研室用自选系3184作母本,黄早4作父本杂交选育而成。经多年多点试验,该品种表现为高产稳产,抗病抗倒,适于密植,适应性广。经1983、1984两年6点11次试验,平均亩产542.5公斤,最高亩产656.3公斤,较郑单2号增产32.4％,比掖单2号、烟单14号分别增产8.4％和18.4％。1985、1986年参加河南省夏玉米区域试
Yu No. 8 Henan Agricultural University, Department of Maize, Department of Autonomous Line 3184 as the female parent, yellow as early as 4 parental cross breeding. After many years of trial, the variety showed high and stable yield, disease resistance, suitable for close planting, wide adaptability. After 1983 and 1984, the test was conducted at 6:11 in two years, with an average yield of 542.5 kg per mu and a maximum of 656.3 kg per mu, an increase of 32.4% over that of Zhengdan 2 and 8.4% and 18.4% respectively over that of Yedan No.2 and Yidan No.14. . 1985, 1986 to participate in regional trial of summer maize in Henan Province