小麦与玉米杂交,利用玉米染色体的消失而产生小麦单倍体,是一种新的单倍体育种途径。而且现已在杂交环境(温度、光)以及选择亲合性高的玉米品种和为了提高胚形成率、种子形成率等方面,进一步研究开发了有效的方法。因玉米对小麦可交配基因Kr的不敏感性以及对小麦基因型没有严格的专化性,故小麦×玉米是一种很有效的单倍体育种途径。 Wheat and maize hybrids, the use of maize chromosomes disappear and produce wheat haploid, is a new way of haploid breeding. Furthermore, effective methods have been developed for further research on hybridization environments (temperature and light), selection of maize varieties with high affinity, and improvement of embryo formation rate and seed formation rate. Wheat × maize is a very effective haploid breeding method because of the insensitivity of maize to wheat versatile gene Kr and the lack of strict specificity of wheat genotypes.