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March 8, 2026SHILAP Revista de lepidopterologíaOpen Access

Combining ability and gene action for flowering, plant height, grain size, and yield in rice (Oryza sativa L.) genotypes

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Authors

EJElias JekeJBJames BokosiRMRosemary Murori

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Overview

Analysis of gene action shows significant genetic variability affecting yield and traits in rice genotypes, suggesting effective breeding strategies.

Key Points

  • To determine the combining ability and gene action for flowering, plant height, grain size, and yield in rice genotypes.
  • Conducted at Lifuwu Agricultural Research Station in Malawi.
  • Utilized a Randomized Complete Block Design (RCBD) with 15 rice genotypes and 3 replications.
  • Employed North Carolina Design II (NCD II) for crossing methods and analysis.
  • Significant genetic variability was observed among genotypes for the four traits.
  • Kudya genotype showed the highest GCA effects (1.015) for grain yield.
  • The cross Kudya × Kayanjamalo had the highest mean grain yield per plant (19.0 g).
  • Genotypes identified as potential superior parents for future breeding programs.

Cite This Study

Jeke et al. (2026) studied this question.

synapsesocial.com/papers/69ada804bc08abd80d5bb369https://doi.org/10.3389/fpls.2025.1705322
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Analysis of Component of Genetic Variance, Combining Ability, Gene Action and Heterotic Response in Rice (Oryza sativa. L)2024
  2. 2Combining ability and molecular marker approach for developing early maturing high yielding hybrid rice2026
  3. 3Estimation of Gene Effect and Combining Ability for Yield and Yield Components Using Line x Tester Analysis in Rice (<i>Oryza sativa</i>)2024 · 6 citations
  4. 4Determining the Gene Action Type for Grain Yield and its Components using Generation Mean Analysis in Rice (Oryza sativa L.)2024 · 1 citations
  5. 5Dissecting gene action in rice (Oryza sativa L.) using generation mean analysis across multiple crosses2026