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October 23, 2025Scientific ReportsOpen Access

Estimation of heterosis and combining ability under low soil phosphorus condition in rice (Oryza sativa L.)

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Authors

NMN. MadhusudanPSP. SenguttuvelRSR. M. Sundaram

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Overview

Analysis reveals increased heterosis gain in rice hybrids under low phosphorus, indicating improved resource efficiency in constrained environments.

Key Points

  • Heterosis gain reached 120 to 200% in rice hybrids across low phosphorus conditions, demonstrating significant plant yield improvements.
  • Significant variances in General and Specific Combining Ability observed in hybrids, highlighting non-additive genetic variance.
  • Study utilized Line × Tester analysis on rice during two wet seasons, with different phosphorus application levels evaluated.
  • Findings support developing hybrid rice varieties for enhanced phosphorus use efficiency in resource-limited settings.

Cite This Study

Madhusudan et al. (2025) studied this question.

synapsesocial.com/papers/68fa32a40df2e6cd2f7421b8https://doi.org/10.1038/s41598-025-20344-8
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Also Consider

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

  1. 1Studies on Combining Ability and Heterosis for Yield, Yield Contributing Traits in Rice (Oryza sativa L.) Hybrids2025
  2. 2Heterosis and Combining Ability Studies for Yield and Its Contributing Traits Using Wild-Abortive (WA) Cytoplasmic Male Sterile (CMS) Lines in Rice (Oryza sativa L.)2025
  3. 3Combining Ability and Heterosis Studying for Yield and its Attributes of Hybrid Rice Under Normal and Salinity Conditions Using Line × tester Scheme2024
  4. 4Analysis of line × tester mating design for rice (Oryza sativa L.) based on earliness, yield, and its components2026
  5. 5STUDIES ON COMBINING ABILITY AND HETEROSIS FOR YIELD, ITS COMPONENTS AND SOME GRAIN QUALITY TRAITS IN RICE USING LINE X TESTER UNDER NORMAL AND WATER DEFICIT2024