远缘杂交是遗传和育种研究的一个重要内容,它首先遇到的问题是杂交不易成功,杂种后代不育,总称“结实性”问题。本文主要是介绍小麦与黑麦类远缘杂交中,当代结实率和杂种结实性两方面的研究结果,特别是不同亲本类型以及正、反交对结实性的显著影响。 Distant hybridization is an important part of genetic and breeding research. The first problem it encounters is the difficulty of hybridization and the infertility of hybrids. In this paper, we mainly introduce the results of the studies on the current seed setting rate and hybrid vigor in the distant hybridization of wheat and rye, especially the different parental types and the positive and negative crosses.