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August 17, 2025Kufa Journal for Agricultural SciencesOpen Access

A Gene Action, Heterosis and Combining Ability in Maize Hybrids B- Using Line x Tester Analysis

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AAAbbas Alo

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Overview

Analysis reveals combining ability and heterosis in maize hybrids, indicating key genetic traits for yield improvement.

Key Points

  • Dominance gene effects were significant for all traits, highlighting the importance of heterosis in maize breeding.
  • General combining ability was greater in tester ZP–505 and line ZP-595, supporting better grain yield traits across multiple crosses.
  • Nine traits were evaluated, demonstrating significant genetic diversity among parents and hybrids in the study.
  • Heritability ranged from 20.98% to 55.71%, indicating varied genetic control across traits, with implications for breeding programs.

Cite This Study

Abbas Alo (2022) studied this question.

synapsesocial.com/papers/68c236dfb210217d64776304https://doi.org/10.36077/kjas/2021/v13i1.2047
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Also Consider

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  1. 1A Gene Action, Heterosis and Combining Ability in Maize Hybrids A- Using Half Diallel Analysis2022
  2. 2Estimates magnitude of heterosis, nature of gene action and combining ability in maize using Line ×Tester method for yield and attributing traits2025
  3. 3Studies on Combining Ability for Grain Yield and its Attributing Traits in Maize (Zea mays L.)2025
  4. 4Study of Combining Ability and Gene Action for Seed Yield in Sunflower (Helianthus annuus L.) Using Line x Tester Analysis2025
  5. 5Combining Ability for Grain Yield and Popping Expansion in Popcorn (Zea mays everta) Hybrids2025