一个无叶舌玉米育种新材料的利用研究  

Study on the Utilization of a New Liguleless Maize Breeding Material

作　　者：吴凤新[1] 张妤[1] 谢利 王丹[1] 杜金洹 孙志超[1] 蔡鑫茹[1] 张艳[1] 路明[1] 邢跃先[1] 孙传波[1] WU Fengxin;ZHANG Yu;XIE Li;WANG Dan;DU Jinhuan;SUN Zhichao;CAI Xinru;ZHANG Yan;LU Ming;XING Yuexian;SUN Chuanbo(Jilin Academy of Agricultural Sciences,Changchun 130033,China)

机构地区：[1]吉林省农业科学院,长春130033

出　　处：《东北农业科学》2020年第6期11-13,49,共4页Journal of Northeast Agricultural Sciences

基　　金：创新研究群体科学基金(CXGC2018ZY007);农业农村部公益行业专项(201503112-5)。

摘　　要：本研究从黄早四回交群体的自交后代发现了无叶舌单株,自交获得隐性无叶舌自交系吉D69。采用回交转育的方法,把吉D69的无叶舌基因导入到杂交种吉单513的两个亲本吉V203和吉V152中,获得无叶舌自交系吉V203/lg和吉V152/lg。2017年用吉V203和吉V152及其对应的无叶舌自交系吉V203/lg和吉V152/lg配制杂交种吉单513、吉单513/lg、吉单513/sm和吉单513/sf,2018年进行性状调查并对杂交种进行测产。发现无叶舌自交系株型收敛,果穗普遍变小;当杂交种的双亲均为无叶舌自交系时,由于果穗太小而减产,而当杂交种的一个亲本为无叶舌自交系时,由于耐密性提高而增产。无叶舌育种新材料在耐密育种中具有较大的应用价值。This study found a liguleless plant from the self-crossing offspring of backcross group of Huangzao4, and obtained the recessive liguleless inbred line Ji D69. Using the method of backcross conversion, the liguleless gene of Ji D69 was introduced into Ji V203 and Ji V152, the two parents of the hybrid Jidan 513, and obtained the liguleless inbred lines Ji V203/lg and Ji V152/lg. In 2017, the hybrids Jidan 513, Jidan 513/lg, Jidan 513/sm and Jidan513/sf were prepared by using Ji V203 and Ji V152 and their corresponding liguleless inbred lines. The characters were investigated and the yield of the hybrids was measured in 2018. We found that the plant type of the liguleless corn converged and the ear size was generally smaller;when the parents of one hybrid are both liguleless inbred lines, the yield of the hybrid was reduced because of the small ear size, while when one of the parents of the hybrid was a liguleless inbred line, the yield was increased due to the improvement of density tolerance. Therefore, the new liguleless breeding material has a great application value in dense resistance breeding.

关 键 词：玉米 无叶舌育种材料 耐密育种 

分 类 号：S513[农业科学—作物学]