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目前虽然组织培养,体细胞杂交以及DNA重组等生物技术手段在植物遗传改良方面发挥了很大作用,但是它不能代替传统的育种技术,特别是杂交育种。到现在为止,作物中以传统杂交方式育成的品种占70%以上,有性杂交仍然是人工创造变异,产生新类型的主要方法之一。小麦属于自花授粉作物,通常情况下自然异交极低,为了提高育种效率,促进品种间的基因重组,进行小麦的人工有性杂交是小麦育种中最常用的方法。1材料与方法1.1试验材料试验于2007～2009年河北工程大学在河北省永年县
At present, although biotechnological methods such as tissue culture, somatic hybridization and DNA recombination have played a significant role in plant genetic improvement, they can not replace the traditional breeding techniques, especially hybrid breeding. Up to now, more than 70% of cultivars have been bred by traditional hybridization methods. Sexual hybridization is still one of the main methods to create variation and create new types of plants. Wheat is a self-pollinated crop, which usually has very low natural cross-breeding. In order to improve breeding efficiency and promote genetic recombination among cultivars, wheat is the most commonly used method for artificial sexual crossbreeding. 1 Materials and Methods 1.1 Test Materials Test in 2007-2009 Hebei Engineering University in Yongnian County, Hebei Province