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Combining ability and superiority in yellow maize under three locations [electronic resource].

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Ibrahim, M.H.A

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Language: English Summary language: Arabic Description: p.97-109Other title:

القدرة على التألف وقوة الهجين فى الذرة الصفراء تحت ثلاث مواقع [Added title page title]

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Egyptian journal of plant breeding, 2011 v. 15 (2), Special issue [electronic resource]:

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In: Egyptian Journal of Plant Breeding 2011.v.15(2).Special issue.Summary: Half diallel cross among seven maize (Zea mays L.) inbred lines (Gm1560, Gm1561,Gm1562,Gm1563,Gm1564,Gm1565 and Gm1566) were made at Gemmeiza Research Station during the growing season 2008. Twenty one crosses plus three checks (SC162,SC166and SC164) were evaluated at Gemmeiza , Sids and Mallawy Agricultural Research Stations in the growing season 2009. Data were collected on number days to 50% silking date, plant height ,ear height, resistance to late wilt disease, grain yield (Mg/ha), ear length, ear diameter, number of rows lear , number of kernels /row and weight of 100kernels. Data were genetically analyzed by using Griffing (1956) method -4 model- 1 fixed model. The mean squares associated with locations were found to be significant for all studied traits, except number ofdays to 50% silking date, resistance to late wilt disease and weight of 100-kernels as well as general GCA and specific SCA combining ability mean squares were significant for most studied traits.

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Half diallel cross among seven maize (Zea mays L.) inbred lines (Gm1560, Gm1561,Gm1562,Gm1563,Gm1564,Gm1565 and Gm1566) were made at Gemmeiza Research Station during the growing season 2008. Twenty one crosses plus three checks (SC162,SC166and SC164) were evaluated at Gemmeiza , Sids and Mallawy Agricultural Research Stations in the growing season 2009. Data were collected on number days to 50% silking date, plant height ,ear height, resistance to late wilt disease, grain yield (Mg/ha), ear length, ear diameter, number of rows lear , number of kernels /row and weight of 100kernels. Data were genetically analyzed by using Griffing (1956) method -4 model- 1 fixed model. The mean squares associated with locations were found to be significant for all studied traits, except number ofdays to 50% silking date, resistance to late wilt disease and weight of 100-kernels as well as general GCA and specific SCA combining ability mean squares were significant for most studied traits.

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