Diallel Analysis of Grain Yield and Some Other Traits in Yellow Maize (Zea mays L.) Inbred Lines | ||
| Assiut Journal of Agricultural Sciences | ||
| Article 2, Volume 43, Issue 6, December 2012, Pages 18-28 PDF (480.44 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajas.2012.267336 | ||
| Authors | ||
| M.M.A. Osman; Kh.A.M. Ibrahim; M.A.M. El-Ghonemy | ||
| Maize research section, Field crops research institute, Agric research center, Egypt. | ||
| Abstract | ||
| Eight advanced inbred lines derived from different yellow maize populations were crossed in a half diallel mating scheme in 2010 season at Gemmeiza Agric. Res. Station. The resultant 28 crosses along with two commercial check hybrids i.e. SC 166 and SC 173 were evaluated at two locations i.e. Gemmeiza and Mallawy Agric. Res. Stations in 2011 season. Mean squares due to crosses, G.C.A. and S.C.A. were highly significant for all studied traits. The ratio of Ʃg2i/ ƩS2ij indicated that the non-additive gene effects played the major role in the inhertance of all the studied traits. For grain yield, one parental inbred line P3 had significant positive GCA effects and six crosses P1xP2, P1xP6, P2xP4, P3xP8, P5xP7 and P6xP7 had significant or highly significant positive SCA effects. One cross P3xP8 gave similar productivity to that of SC 166. Also two crosses P3xP5 and P5xP7 exhibited similar yield performance to that of the check hybrid SC 173, since no significant difference. These promising crosses may be released as commercial hybrids by maize research program after further testing. | ||
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