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Generation mean analysis for ear characters in maize.

Author(s)
Muhammad Irshad-Ul-Haq Millets Research Station, Shamasabad, Murree Road, Rawalpindi, Pakistan
Naveed Kamal Maize Breeding Sub Station, Chharrapni (Murree), Pakistan
Saeeda Khanum Millets Research Station, Shamasabad, Murree Road, Rawalpindi, Pakistan
Muhammad Siddique Millets Research Station, Shamasabad, Murree Road, Rawalpind, Pakistan
Muhammad Zameer Kayani Agriculture Officer (Green Belt) Rawalpindi, Pakistan
Abstract
The choice of an efficient breeding procedure mainly depends upon the knowledge of the type of gene action controlling the inheritance of a particular trait to be improved. Present study was conducted to ascertain genetic parameters for ear characters using generation mean analysis. Analysis of variance showed significant differences among all the crosses of each character. Generation mean analysis suggested that non additive genetic effects were responsible for the inheritance of ear height, ear length and number of grain rows per ear. Dominance x dominance type of allelic interaction was observed for ear height while both additive x additive and dominance x dominance interaction played significant role in the manifestation of ear length and number of grain rows per ear. The opposite sign of h and l indicated the presence of duplicate epistasis. Significant role of dominance variance along with duplicate epistasis favour the use of research material for the development of hybrid varieties.
Publication Details
Page(s) 465-470
DOI DOI not available
Published Journal: International Journal of Biology and Biotechnology, Volume: 10, Issue: 3, Year: 2013

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