Developing new germplasm by wide hybridization within Triticeae grasses

摘要：

Wide cross is an effective method of breeding new varieties of forage.For years, the interspecific and intergeneric hybridization of A gropyron, Elymus and Leymus were conducted,according to the principles of complementarities between advantages and disadvantages and still maintaining great ecotypical difference between parents.Many F1 hybrids from these crosses were highly sterile.In this study, the sterility reasons and the breeding value of fertility restoration of hybrids were studied.Parents, F1 hybrid and the progeny of restored fertility parents were compared using morphological, production performance,physiological and biochemical,cytogenetical and molecular genetic parameters.Chromosome stability and seed set on the progeny of fertility restored plants were discussed so as to establish the basis for wide cross breeding.

关键词： Triticeae grasses interspecific and intergeneric hybrids fertility restoration

作者: Yun Jinfeng Hou Jianhua Yu Zhuo Li Zaozhe

作者单位: Inner Mongolia Agriculture University,Hohhot,Inner Mongolia 010018 P.R.China.

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）