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当前位置: 首页 > 文章 > 矮败小麦2种杂交方式后代群体株高遗传特点观察 河南农业科学 2009,38 (11) 18-21
Position: Home > Articles > Genetic Characteristics of Plant Height of Dwarfing-sterile Wheat Populations from Two Hybridizing Methods Journal of Henan Agricultural Sciences 2009,38 (11) 18-21

矮败小麦2种杂交方式后代群体株高遗传特点观察

作  者：
董普辉;袁建国;冯昞瑶;王黎明;韩赞平;高双成;袁爱梅
单  位：
河南科技大学农学院
关键词：
矮败小麦;轮回选择;混合互交;控制授粉;株高
摘  要：
为了在育种过程中有效控制矮败小麦群体的株高,对矮败小麦混合互交轮选群体和控制授粉后代群体的株高表现进行了分析。结果表明,2种杂交方式后代群体中可育株和不育株株高差异明显,有利于选择利用。混合互交轮选群体应注意扬花前在一定选择强度下及时淘汰不良高秆可育株,并收获相对较矮的矮秆不育株种子混合成下一轮群体。对轮选群体中分离出的优良矮秆不育株进行控制授粉,也应优先考虑选择株高相对较矮的优良种质做父本。通过以上措施,矮败小麦后代群体在株高性状上容易得到较好的控制,从而提高符合育种目标的优良可育株的出现频率。
译  名：
Genetic Characteristics of Plant Height of Dwarfing-sterile Wheat Populations from Two Hybridizing Methods
作  者：
DONG Pu-hui,YUAN Jian-guo,FENG Bing-yao,WANG Li-mingHAN Zan-ping,GAO Shuang-cheng,YUAN Ai-mei(College of Agronomy,Henan University of Science and Technology,Luoyang 471003,China)
关键词：
Dwarfing-sterile wheat;Recurrent selection;Mixed intermating;Controlled pollination;Plant height
摘  要：
Dwarfing-sterile wheat(DSW)is an ideal tool for recurrent selection in wheat breeding.In order to control the plant height of DSW populations in wheat breeding efficiently,the plant height performance of DSW populations from two hybridizing methods was analyzed.The results showed that the plant height between fertile plants and sterile plants was very different,and convenient for selection.In mixed intermating recurrent selection population,the unideal tall fertile plants should be removed timely before flowering under specific selection pressure,and the seeds harvested from relative dwarf plants were mixed for the next populations.The superior sterile plants separated from recurrent selection populations should be polinated by superior dwarf fertile germplasm.In this way,the plant height of DSW populations could be controlled easily,and the frequency of elite fertile plants according with the breeding targets would be increased.

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