2022
DOI: 10.9734/ijpss/2022/v34i2231373
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Estimation of General and Specific Combining Ability Effects for Quality Protein Maize Inbred Lines

Abstract: Background: Maize (Zea mays L.) plays a critical role in meeting high food demand. It is globally one of the most widely adapted and cultivated crops. Hybrid development from fixed inbred lines is one of the strategies for the improvement of maize production. The national average maize yield in Ethiopia is low and thus, selection of promising germplasm and knowledge of combining ability are prerequisites to developing high yielding maize varieties. Forty-two Quality Protein Maize (QPM) crosses (21 inbred lines… Show more

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Cited by 1 publication
(2 citation statements)
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“…The variability for selection and the expected genetic advance is in the population of singe cross is largest. The whole of the additive, dominance and epistatic components of genetic variation is available for exploitation in single crosses [18,19]. Combining ability investigations of parental generations need to be conducted under appropriately stressed selection environments for the successful selection of suitable parents that can be used in hybridization programs [20].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…The variability for selection and the expected genetic advance is in the population of singe cross is largest. The whole of the additive, dominance and epistatic components of genetic variation is available for exploitation in single crosses [18,19]. Combining ability investigations of parental generations need to be conducted under appropriately stressed selection environments for the successful selection of suitable parents that can be used in hybridization programs [20].…”
Section: Introductionmentioning
confidence: 99%
“…Successful estimation of combining abilities involves various steps such as parental selection for crossing, performing crosses using a definite mating design, evaluation and data interpretation. The study of the effects of combining ability, both general combining ability (GCA) and specific combining ability (SCA), are important indicators of potential value for assessing inbred lines in hybrid combinations as a step to develop hybrid varieties in maize [19]. Heterosis and combining ability are the prerequisites for formulating hybrid breeding programme.…”
Section: Introductionmentioning
confidence: 99%