通过轮回选择(reCurrcnt seleCtion)实行高粱的群体改良,以培育遗传基础广泛的品种和杂种优势明显的杂交种,目前已成为国外高梁选育机构应用的主要方法之一。与以往使用的系谱法相比,群体改良法具有明显的优越性。众所周知,传统的系谱法虽能为人们提供数量较多的优良高粱品种和杂交种,但人们越来越注意到它本身的不足。首先,由于杂交技 The reorganization of sorghum population through recursive selection (CAC) has led to the development of broad-based cultivars and hybrids with obvious hybrid vigor. At present, it has become one of the main methods applied to foreign sorghum breeding institutions. Compared with the pedigree method used in the past, the group improvement method has obvious advantages. As we all know, although the traditional pedigree method can provide people with a large number of fine sorghum varieties and hybrids, people pay more and more attention to its own deficiencies. First of all, because of the hybridization technique