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Studies on G x E Interaction and Combining Abilities for Earliness and Yield Characters in Nigeria M

Authors: Oyekale Kehinde

Publication Type: Journal article

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Abstract

Identifying suitable parental materials is an important phase in the development of hybrid seeds. Experiment was carried to determine the relative importance of the effects of general combining ability (GCA) and specific combining ability (SCA) in the expression of earliness and yield- related characters as well as analyze the influence of G x E interaction on grain yield using a diallel set of 55 F1 crosses among 10 inbred maize cultivars, The experiment was carried out during the early and late cropping seasons of 2009/2010 at three locations (Federal University of Agriculture Abeokuta research farm, Institute for Agricultural Research and Training (IAR&T) Research Farms at Eruwa and Ikenne South West Nigeria). The experiment involved evaluation of F1 hybrids produced from half-diallele crosses among parental inbred lines at each location for earliness and yield related traits.. Analysis of variance showed that effects of GCA and SCA were significant (P < 0.01) for almost all traits studied. Estimate of GCA showed that parents TZSTR 147 (3), TZEI 11 (5) and TZEI 15 (7) possessed the best general combining ability, while F1 hybrids 2 x 9, 3 x 5 and 7 x 8 possessed the best specific combining ability for yield and earliness traits. Estimate of GCA was better than SCA in nearly all the traits indicating that additive gene action was more important than non-additive gene action in the inheritance of the traits.

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Oyekale,K. . (0000). Studies on G x E Interaction and Combining Abilities for Earliness and Yield Characters in Nigeria M, 0 (), 0-0.

Oyekale,K. . "Studies on G x E Interaction and Combining Abilities for Earliness and Yield Characters in Nigeria M" 0, no (), (0000): 0-0.

Oyekale,K. and . (0000). Studies on G x E Interaction and Combining Abilities for Earliness and Yield Characters in Nigeria M, 0 (), pp0-0.

OyekaleK, . Studies on G x E Interaction and Combining Abilities for Earliness and Yield Characters in Nigeria M. 0000, 0 ():0-0.

Oyekale,Kehinde , . "Studies on G x E Interaction and Combining Abilities for Earliness and Yield Characters in Nigeria M", 0 . (0000) : 0-0.

O.Kehinde , "Studies on G x E Interaction and Combining Abilities for Earliness and Yield Characters in Nigeria M" vol.0, no., pp. 0-0, 0000.

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