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鲁单203是山东省农科院玉米所用中系091/02作母本,齐205为父本杂交育成的中熟、高产、多抗、优质蛋白玉米杂交种(全籽粒赖氨酸含量0.42％,较普通玉米杂交种高1倍多),1990年引入我省试种,综合性状表现突出。1992年3月通过全国区试认定推广。
Ludan 203 is a medium-maturing, high-yielding, poly-resistance and high-quality protein maize hybrid with the middle line 091/02 of maize used in Shandong Academy of Agricultural Sciences as the female parent and Qi 205 as the male parent (the whole grain lysine content is 0.42% , More than double that of common maize hybrids). In 1990, it was introduced into our province for trial cultivation, and the comprehensive traits were outstanding. March 1992 through the national district test identified promotion.