Relative Values of Three Different Testers in Evaluating Combining Ability of New Maize Inbred Lines

Fifteen inbred lines and three testers of maize were crossed in line x tester scheme to study the combining ability effects for earliness, grain yield and yield components. A yield trial included the 45 top crosses, 15 inbred lines, 3 testers and two check hybrids S.C. Pioneer 3084 and T.W.C Giza 35...

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Bibliographic Details
Published in:International journal of plant breeding and genetics 2014-03, Vol.8 (2), p.57-65
Main Author: EL-Hosary, A AA
Format: Article
Language:English
Subjects:
Zea mays
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Summary:Fifteen inbred lines and three testers of maize were crossed in line x tester scheme to study the combining ability effects for earliness, grain yield and yield components. A yield trial included the 45 top crosses, 15 inbred lines, 3 testers and two check hybrids S.C. Pioneer 3084 and T.W.C Giza 352. The experiment was conducted for three years at the Agricultural Research Station of the Faculty of Agriculture, Moshtohor, Benha University. The experimental design was randomized complete blocks with three replications. Mean squares due to crosses (C) inbred lines (L), testers (T) and line x tester (LxT) were significant for most studied traits for the combined analysis over two evaluation seasons. Significance of interaction variance for C, L, T and LxT with seasons on most studied traits was detected.
ISSN:1819-3595
2152-3347
DOI:10.3923/ijpbg.2014.57.65