Combining Ability and Genetic Components for Length and Width of Pods in West African Okra (Abelmoschus caillei (A. Chev) Stevels)

The identification of suitable parental genotypes potentially generating superior lines with traits contributing to the overall yield of cowpea is an important step in the development of improved varieties. Eight parents and their 28 hybrids obtained through diallel crossing design were evaluated in a randomized complete block design with three replications. Highly significant differences among the parents and their hybrids for different traits were observed. General combining ability (GCA) mean squares were larger than the specific combining ability mean squares for all the traits analysed. The ratio h²/H₂ revealed different number of genes controlling the traits, pointing out their polygenic inherited control. The estimated low narrow sense heritability recorded in this study indicated that recurrent selection procedure could be effective to improve the analysed traits in the genotypes included in this study. Kananado with large, positive and significant GCA effects was identified as the parent with desirable genes for the genetic improvement of the considered yield component in cowpea. In addition, IT03K-316-1 x Cowpea-2 and IT99K-316-2 x Kananado seemed to be the best hybrids for number of pods/plant and 100-seed weight, respectively

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Combining ability and genetic components for pod and seed traits in cowpea lines

Ayo-Vaughan

Ariyo

Alake

2013

Ital J Agronomy

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Combining Ability and Genetic Components for Length and Width of Pods in West African Okra (Abelmoschus caillei (A. Chev) Stevels)

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Combining ability and genetic components for pod and seed traits in cowpea lines

Combining ability and genetic components for pod and seed traits in cowpea lines

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