Scientia Agricultura Sinica ›› 2008, Vol. 41 ›› Issue (1): 15-22 .doi: 10.3864/j.issn.0578-1752.2008.01.003

• CROP GENETICS & BREEDING·GERMPLASM RESOURCES·MOLECULAR GENETICS • Previous Articles     Next Articles

Combining Ability and Heterotic Group of Maize Population GT-MAS:gk with Resistance to Aflatoxin

  

  1. 中国农业大学农学与生物技术学院
  • Received:2006-09-21 Revised:2006-12-02 Online:2008-01-10 Published:2008-01-10

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Abstract: 【Objective】Maize population GT-MAS:gk has been identified and released in U.S.A. as a germplasm with resistance to aflatoxin contamination, The objectives of this study were to characterize this maize germplasm in order to utilize this genetic material in maize breeding and improvement in research to resistant aflatoxin contamination;【Method】The research studies reported here have been conducted from the year of 2000 to 2005 in Shanxi Academy of Agricultural Sciences-Millet Research Institute at Changzhi of China, we chose 6 inbred lines to be testers to test the yield combining ability of 6 populations, the experimental design is by method of Incomplete Diallel Crossing; 【Result】The result showed that the GCA of the population GT-MAS:gk is just being middle level among 6 populations, but the SCA appeared higher withYe478、Qi319 and Mo17, and lower with Huangzao 4、Dan 340 and B73; 【Conclusion】We subsume GT-MAS:gk as Reid heterotic group, the heterosis paterns are GT-MAS:gk × PA, GT-MAS:gk × Lancaster, GT-MAS:gk × the lines derived from P78599.

Key words: Maize Population, GT-MAS:gk, Aflatoxin, Combining Ability, Heterotic Group

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