Rice—A Step Toward Use of Allelopathy uri icon


  • Allelopathic rice can suppress both mono- and dicot weed species.
  • Allelopathy plays a role under field conditions.
  • Progress has been made in identifying rice allelochemicals.
  • Quantitative trait loci correlated with allelopathy have been identified.
  • Rice (Oryza sativa L.) allelopathy has been on the research agenda for a decade, Now it is important to step back and look at its progress to enable priority setting for future research. This paper aims to do so primarily using the following five-step protocol for allelopathy research: (i) carrying out laboratory, greenhouse, and field studies to illustrate the effect of released allelochemicals; (ii) isolating, identifying, and characterizing allelochemicals; (iii) establishing a correlation between growth inhibition and allelochemicals; (iv) performing genetic mapping of quantitative trait loci (QTLs) correlated with allelopathy; and (v) breeding fur allelopathic cultivars tested for competitive ability in greenhouse and field experiments. Recent research on rice allelopathy has resulted in the following research milestones:
  • There is large variation in allelopathy among rice cultivars.
  • This paper discusses the progress made in recent Sears and suggests some direction for future research.

publication date

  • 2001
  • 2001
  • 2001