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Related Experiment Video

Updated: Jun 22, 2025

Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support
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Ratoon rice research: Review and prospect for the tropics.

Kazuki Saito1,2, Elliott Ronald Dossou-Yovo1, Ali Ibrahim3

  • 1Africa Rice Center (AfricaRice), 01 B.P. 2551, Bouake 01, Cote d'Ivoire.

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|June 28, 2024
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Summary

Ratoon rice, a sustainable production method, shows variable yields globally. Optimizing genetic and agronomic practices, especially in tropical regions, is key to unlocking its full potential for resource-efficient agriculture.

Keywords:
AgronomyGenetic improvementOryza sativa L.SustainabilityYield

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Area of Science:

  • Agronomy
  • Plant Science
  • Sustainable Agriculture

Background:

  • Ratooning offers a green, resource-efficient approach to boost rice production amid labor shortages and climate change.
  • Understanding ratoon rice performance and agronomic impacts is crucial for sustainable agricultural intensification.

Purpose of the Study:

  • Quantify main and ratoon crop rice yields.
  • Assess genetic and agronomic factors influencing ratoon rice yield and total yield.
  • Review economic and environmental benefits of ratoon rice compared to conventional cropping systems.

Main Methods:

  • Compiled a database from 68 global studies on ratoon rice published between 2000 and 2023.
  • Performed descriptive data analysis to evaluate yield variations and influencing factors.

Main Results:

  • Ratoon crop yields varied significantly, with lower performance in tropical regions compared to non-tropical areas.
  • Ratoon yield positively correlated with main crop yield, crop duration, and nitrogen fertilizer rates, with hybrid varieties and direct seeding showing advantages.
  • Ratoon cropping reduced labor and costs while increasing net returns compared to double cropping, though tropical ratoon agronomic nitrogen use efficiency (AEN) was lower.

Conclusions:

  • Significant variation in ratoon rice yield exists globally, influenced by genetics and agronomic practices.
  • Further research is needed to improve genetic traits and agronomic strategies for ratoon rice, particularly in tropical environments.
  • Ratoon rice presents a viable option for sustainable production, offering economic and environmental benefits.