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玉米是我国的主要粮食作物,单产和总产已超过小麦而跃居粮食作物第2位。玉米又是优质饲料作物,有“饲料之王”之称,玉米生产总量约有75%为饲料,因而发展玉米生产对我国的国民经济建设具有重要的现实意义。根据当前玉米生产的特点和农民的种植方式,我们以稳产、广适为首要的育种目标,提出并采用耐密为核心的育种技术方针,综合抗性好,产量超过郑单958;亲本自交系自身制种产量高并繁殖技术简单和杂交制种产量在7 500kg/hm2,确定了“高产、优质、株
Corn is a major food crop in our country. The yield and total output of maize have surpassed that of wheat and jumped to No. 2 in food crops. Corn is also a high-quality fodder crop. It is known as ”the king of feed“ and about 75% of the total corn production is feed. Therefore, the development of corn production is of great practical significance to the national economy of our country. According to the current characteristics of corn production and peasant cultivation, we have to stabilize the production, wide adaptation as the primary breeding goal, put forward and adopt the principle of tolerance as the core breeding technology, comprehensive resistance, yield more than Zhengdan 958; Department of its own high-yielding seed production and breeding techniques and hybrid seed production in the yield of 7 500kg / hm2, to determine the ”high yield, high quality, strain