提高冬小麦品种的越冬性是小麦育种中现实问题之一。我们五年间对半个世纪(1929—1979年)在乌克兰草原地带区域化的冬性普通小麦品种所做的比较研究证实,我国南方的育种家在改良这个作物的许多重要经济性状上,尤其是在提高丰产性上取得相当大的成效。不过新的集约型品种在越冬性上都不及五十年前育成的粗放型品种。所有现存抗寒性、越冬性强的冬小麦资源(敖德萨16,乌里杨诺夫卡,留切申329,阿 Increasing the winterness of winter wheat varieties is one of the realistic problems in wheat breeding. A comparative study of our five-year, winterized common wheat varieties regionalized in the Ukrainian steppe for half a century (1929-1979) confirms that breeders in southern South China are improving many of the important economic traits of the crop, especially In improving the high yield on the considerable achievements. However, the new intensive varieties are not as overwintering as the extensive varieties bred 50 years ago. All existing cold hardiness, overwintering strong winter wheat resources (Odessa 16, Ulyanovka, leaving Chesehen 329, A