8个热带、亚热带玉米群体的配合力和杂种优势分析  

Analysis of Combining Ability and Heterosis for 8 Tropical,Subtropical Maize Populations

作　　者：张前进[1] 张新[1] 王振华[1] 魏昕[1] 

机构地区：[1]河南省农业科学院粮食作物研究所,郑州450002

出　　处：《中国农学通报》2008年第9期109-113,共5页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划"黄淮海夏播高产优质多抗玉米育种技术研究及新品种选育"(2006BAD01A03);国家科技支撑计划"玉米;高粱;粟类基因资源发掘与种质创新利用研究"(2006BAD13B03);河南省重大专项"超高产玉米新品种选育"(0620010200)

摘　　要：【研究目的】对8个热带、亚热带玉米群体Pob45、Pob46、Pob501、Pob502、Pool33、Pool34、Pob25、Suwan1进行配合力及杂种优势分析。【方法】试验以自交系昌7-2、郑22、掖478、齐319、Mo17为测验种,采用NCⅡ遗传设计。【结果】Pob25和Pob502的产量一般配合力(GCA)较高,综合产量的一般配合力(GCA)、特殊配合力(SCA)和配合力总效应。【结论】得出塘四平头(昌7-2)×Pob501,塘四平头(昌7-2)×Pob25,Reid(掖478)×Pob25,塘四平头(昌7-2)×Suwan1,旅大红骨(郑22)×Pob502为5大杂优模式。[OBJECTIVE]Pob45,Pob46,Pob501,PobSO2,Poo133,Poo134,Pob25 and Suwanl,8 tropical,subtropical maize populations were crossed to analyze their combining ability and heterosis. [METHOD]Five domestic maize inbreds （Chang7-2,Zheng22,Ye478,Qi319 and Mo17） used as tester by NC Ⅱ mating design. [RESULTS]The results showed that the efficiency value of GCA （general combining abality） for Pob25 and Pob502 was higher. Five heterotic patterns have been obtained from the efficiency value of GCA,special combining ability （SCA） and total combining ability （TCA）, [CONCLUSION]Five heteritie patterns have been obtained from this study, they are Tangsipingtou×Pob501, Tangsipingtou×Pob25, Reid×Pob25, Tangsipingtou× Suwan1, Ludahonggu×Pob502.

关 键 词：热带 亚热带玉米 配合力 杂种优势 

分 类 号：S513.024[农业科学—作物学]