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鲁玉7号组合为维矮141×黄早4,原名鲁单39号,是山东省农业科学院玉米所育成的中早熟玉米单交种。1985年经山东省农作物品种审定委员会审定,列为“七五”期间重点推广品种。产量表现一般亩产500公斤左右,高者可达600公斤以上。该品种高产、稳产、抗逆性好、适应性广、亲本自身产量高。1982年在山东省淄博市周村区15.2亩生产示范田,平均亩产达518.8公斤;在1984年山东省玉米新品种生产试验中,鲁玉7号亩产438.15～523.5公斤,平均亩产491.08公斤,居第一位,比中单2号增产19.25％。1985年山东历城县仲宫区
Luyu combination of 7 for the dimension of 141 × Huang Zhaowei 4, formerly known as Lu Dan No. 39, Shandong Academy of Agricultural Sciences bred corn maize single cross-species. In 1985 by the Shandong Province Crop Variety Approval Committee for validation, as “75” during the promotion of varieties. Yields generally about 500 kg per mu, the highest up to 600 kg. The varieties of high yield, stable yield, good resistance, wide adaptability, high yield of the parent itself. In 1982, Zibo City, Shandong Province, Zhoucun District 15.2 acres of demonstration plots, an average of 518.8 kilograms per mu; Shandong Province in 1984, new varieties of corn production test, Lu Yu 7 per mu 438.15 ~ 523.5 kg, the average yield 491.08 Kg, ranking first, 19.25% increase over Zhongdan 2. 1985 Licheng County, Shandong Zhong Gong District