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CIMMYT(国际玉米小麦改良中心)的玉米群体改良工作之所以卓有成效,主要取决于以下三个因素:(1)广泛搜集世界各地的玉米资源材料,并加以整理分类和鉴定研究,同时运用电子计算机贮存和释放基因资源信息,从而使资源得到更有效地利用。(2)在不同生态环境条件下,采用轮回选择方法对一些优良资源材料的生理生态性状和抗逆性进行定向选择,使更多的优良基因集合。(3)多点鉴定在玉米群体改良中起着
The success of CIMMYT’s corn population improvement program depends on three main factors: (1) The extensive collection of maize resource materials from around the world and their sorting and identification studies, together with the use of electronic computer storage And release of genetic resource information so that resources can be used more efficiently. (2) Under different ecological environment conditions, the cycle selection method was used to orient the selection of physiological and ecological traits and stress resistance of some excellent resource materials so that more good genes could be collected. (3) multi-point identification plays an important role in corn population improvement