Analysis on Combining Ability of Inbred Lines from 5 Synthetic Maize Populations

doi:10.7668/hbnxb.2008.02.014

Abstract

Abstract: The primary objective of this study was to estimate combining ability and its genetic parameters of a set of 15 newly inbred lines.The materials included 8 testers,which used commonly in southwest regions,15 newly inbreds obtained from 5 synthetic corn populations named GP1,GP2,GP3,GP4,GP5,and 120(15×8)combinations which were crossed with 15 new maize inbred lines and the 8 testers by NCⅡ mating design.The combining ability of 15 inbred lines from five groups was analyzed based on the date for the experiment.The genetic parameters were done basing on combining ability.The results showed that GP2-1,GP5-2 and GP5-5 with the better comprehensive characters Coulb be directly used in maize breeding program.The SCA of 48-2×GP3-3,ES40×GP1-2 was high in most traits,they brought out strong heterosis.GCA variance was bigger than SCA variance in ear length,sterile length,ear diameter etc twelve characters,yet SCA variance of ear weight and plant weight was bigger than GCA variance.So,these characters were selected would be based on their heribility.For example,ear length,sterile length,ear diameter etc can be selected in early stage,ear weight and plant weight ought to be selected in lately stage.We should pay attention to GCA,SCA when cross elite hybrid combinations.

Key words: Maize, Groups, Inbred lines, Combining ability, Heterosis

CLC Number:

S513.03

GOU Cai-ming, YANG Ke-cheng. Analysis on Combining Ability of Inbred Lines from 5 Synthetic Maize Populations[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 62-67. doi: 10.7668/hbnxb.2008.02.014.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2008.02.014

http://www.hbnxb.net/EN/Y2008/V23/I2/62

References

[1] 荣廷昭,李晚忱,潘光堂.新世纪初发展我国玉米遗传育种科学技术的思考[J].玉米科学,2003,11(专刊):42-53.
[2] 聂永心,张丽,潘光堂,等.四川省常用玉米自交系SSR遗传多样性分析[J].分子植物育种,2005,3(1):43-51.
[3] 秦燕,任纬,杨克诚.2个玉米人工合成群体S2主要性状的配合力分析[J].华北农学报,2007,22(2):34-38.
[4] 荣廷昭,潘光堂,黄玉碧.数量遗传学[M].北京:中国科学技术出版社,2003:211-243.
[5] 李远春,石永刚.导入热带种质的温带玉米自交系与温带、热带自交系的配合力及杂种优势[J].西南农业学报,1996,9(4):23-28.
[6] 杨伟光.玉米籽粒性状的遗传研究[J].玉米科学,2001,9(3):37-39.
[7] 张建辉,荣廷昭,杨克诚,等.5个玉米人工合成群体主要性状育种潜势分析[J].作物学报,2006,32(2):273-277.
[8] 荣廷昭,李晚忱,杨克诚,等.西南生态区玉米育种[M].北京:中国农业出版社,2003:107-124.
[9] 白琪林,陈绍江,苏书文,等.玉米雄穗性状的配合力及遗传参数研究[J].华北农学报,2004,19(1):13-16.
[10] 杨克诚,赖仲铭.基础群体和子群体重组次数对玉米群体主要经济性状改良效果影响的研究[J].四川农业大学学报,1990,8(1):11-17.
[11] 铁双贵,卢彩霞,丁勇,等.玉米人工合成群体产量相关性状选择潜势及杂种优势模式分析[J].华北农学报,2002,17(1):30-34.
[12] 铁双贵,郑用琏,刘丁良,等.玉米人工合成群体配合力效应及遗传潜势研究[J].作物学报,2000,26(1):28-34.
[13] 郭国亮,李培良,张乃生,等.热带Suwan玉米群体遗传变异的研究[J].玉米科学,2001,9(4):6-9.
[14] Pilar,Soengas,Bernard,et al.Heterotic pattorns among flint maize population[J].Crop Science,2003,43(3):844-849.
[15] 吴渝生.13个玉米自交系主要数量性状的配合力分析[J].国外农学-杂粮作物,1996(6):16-18.
[16] Sprague G F.General VS specific combining ability in single crosses of corn[J].AM Soc Agrom,1942(34):923-932.
[17] 敖君.几个玉米自交系主要数量性状配合力分析[J].玉米科学,1999,7(1):41-42.

Please choose a citation manager

Content to export