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豫玉4号是河南农业大学玉米研究所用“淮矮141”自交系作母本,“L34122”自交系作父本组配的黄粒单交种。在河南省农作物品种审定委员会第12次会议上审议通过,并命名为“豫玉4号”。豫玉4号在1983年的观察鉴定试验中,亩产721.85
Yuyu No.4 was a yellow-seed single-species cross with “Huaiyou 141” inbred line as the female parent and “L34122” inbred line as the parent in the corn research institute of Henan Agricultural University. Henan Province Crop Variety Approval Committee examined and adopted at the twelfth meeting and named “Yu Yu 4”. Yu Yu 4 in the 1983 observation and appraisal test, yield 721.85