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1 选配优良杂交玉米组合玉米制种组合,首先选择杂种一代丰产性、抗逆性强,产量高,品质好,制种产量高,在市场上颇具竞争力,并经审定合格或有示范证的组合,切忌滥推代号品种;其次要做好新品种的引种、试验和示范。通过试验示范,评价各品种的优劣,了解认识品种试销、发展、饱和和衰退规律,掌握新品种发展过程和推广寿命,利于新品种的开发和销售,为品种生产和布局提供依据。同时通过市场调查分析,弄清社会贮存量和
1 matching hybrid hybrid corn combination of corn seed production, first select the hybrid generation of high yield, strong resistance, high yield, good quality, high seed production, quite competitive in the market, and approved by the demonstration or demonstration Combination, avoid excessive push codename varieties; followed to do a good job introducing, testing and demonstration of new varieties. Through trial and demonstration, evaluation of the merits of various breeds, understanding breeds of testing, development, saturation and recession, grasping the development of new breeds and promoting life expectancy, which will benefit the development and sales of new breeds and provide the basis for breed production and layout. At the same time through market research analysis to clarify the social stock and storage