杂种优势是一种普遍的生物学现象。在许多作物上利用杂种优势是夺取高产的一项重要措施。近年来关于小麦杂种优势的利用在国内外受到普遍重视。其主要方式:一是通过“三系”配套选育遗传上的雄性不育系来解决制种去雄问题,由于未能获得强有利的恢复基因而长期不能应用于大田生产;二是利用化学药剂去雄配制杂科。它具有制种 Heterosis is a common biological phenomenon. The use of heterosis on many crops is an important measure to seize high yields. In recent years, the utilization of wheat heterosis has been widely valued at home and abroad. The main ways: First, through the “three lines” supporting genetic selection of male sterile lines to solve the problem of seed production to the male, due to the failure to obtain strong recovery gene and long-term can not be applied to field production; the second is The use of chemical agents to male system miscellaneous subjects. It has seed