目前自交混繁法是防杂保纯和良种繁育的主要方法之一。这种方法主要是通过多代连续自交和选择,提高品种的纯合度,减少个体的遗传差异,从而获得一个较为纯合的群体,利用棉花常异交的繁殖特点,迅速建立较高水平的遗传平衡,生产出纯度高的原种,现对运用该方法过程中应注意的问题进行分析,供大家参考。 At present, the self-bred hybrid method is one of the main methods to prevent contamination and breed purebred. This method is mainly through multiple generations of continuous selfing and selection, to improve the homozygosity of breeds, reduce individual genetic differences, so as to obtain a more homozygous groups, the use of cotton often outbred reproductive characteristics, the rapid establishment of a higher level Genetic balance, to produce high purity of the original species, the use of the method is to pay attention to the process of analysis, for your reference.