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近几年山东省玉米种植面积超过206.7万公顷,选育推广高产、稳产、优质、抗病玉米杂交种,以及改进综合栽培技术,是农民的迫切要求。从事玉米研究的山东省农科院玉米研究所的玉米育种专家,他们急农民之所急,采取国外引进吸收消化和创新的途径,利用快速有效的育种方法,成功地培育出了具有高产、稳产、优质、多抗玉米杂交种-鲁单50。该杂交种1995～1996年参加山东省区域试验(B组),平均667平方米土地产569.59千克,比对照种掖单13号增产8.8％;1997年参加山东省生产试验,平均667平方米土地产549.5千克,比对照种
In recent years, Shandong Province has more than 2.067 million hectares of corn planted. It is an urgent demand of peasants to breed and promote high-yielding, stable-yielding, high-quality and disease-resistant maize hybrids and to improve integrated cultivation techniques. Corn breeding experts from corn research institute of corn of Shandong Academy of Agricultural Sciences maize breeding experts urgently farmers urgently to take the introduction of foreign absorption and digestion and innovation of ways to use fast and effective breeding methods successfully bred with high yield and stable production , High quality, multi-resistant hybrid corn - Ludan 50. The hybrids participated in the regional experiment of Shandong Province (Group B) from 1995 to 1996, with an average of 569.59 kg land of 667 square meters, an increase of 8.8% over that of the Yedang No.13 of the comparative plan. In 1997, Shandong Province participated in the production test with an average of 667 square meters of land Production of 549.5 kg, than the control species