提高冬小麦品种越冬性问题是这个作物育种中最现实的问题。我们在乌克兰草原地带栽培区,用五年时间对半个世纪以来(1927-1977)的软粒冬小麦品种进行比较研究;证明我国(苏联)南方育种工作者在改进这个作物许多有价值的特性中,特别是在提高产量性状方面,取得了相当显著的成绩。然而,在越冬性方面,新的集约品种照例逊于五十年代所培育的粗放型的许多品种。冬小麦品种(敖德萨16、乌里扬诺夫卡、刘季斯钦斯329,阿拉巴斯、阿耳比杜姆114次及其他),现有的这一切来源,在提高耐寒力和越冬性都是属于粗放型的一些品 The problem of overwintering winter wheat is the most practical problem in this crop breeding. In a five-year period in the grassland zone of Ukraine, we compared the soft-grain winter wheat varieties over a half-century period (1927-1977); demonstrating that the southern breeders in our country (Soviet Union) have been able to improve many of the valuable properties of this crop In particular, remarkable achievements have been made in improving yield traits. However, in terms of overwintering, the new intensive varieties are, as a rule, less than the extensive varieties cultivated in the 1950s. Winter wheat varieties (Odessa 16, Ulyanovka, Liu Sisqinsi 329, Alabas, Albi Dum 114 times and others), all of the available sources, in improving cold tolerance and winter Sex is a type of extensive product