Plant Growth Regulation

, Volume 11, Issue 2, pp 165–171 | Cite as

Effect of triacontanol and chlormequat on growth, plant hormones and artemisinin yield in Artemisia annua L.

  • A. Shukla
  • A. H. Abad Farooqi
  • Y. N. Shukla
  • S. Sharma
Regular Paper


Artemisinin and herbage yield of Artemisia annua plants were determined after application of triacontanol (tria.) and chlormequat (2-chloroethyltrimethylammonium chloride). Tria. at 1.0 and 1.5 mgl−1 produced a statistically significant positive effect on artemisinin level as well as on plant height, leaf and herbage yield. Chlormequat at 1000 and 1500 mgl−1 also increased artemisinin level, decreased the plant height at higher concentrations and increased the leaf and herbage yield at lower concentrations. Tria. application enhanced GA-like activity, but ABA levels decreased, while chlormequat increased ABA but reduced GA-like substances. The effect of Tria. on artemisinin yield seems to be mediated through its effect on plant growth.

Key words

Artemisinin chlormequat endogenous plant hormones triacontanol Artemisia annua L. 


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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • A. Shukla
    • 1
  • A. H. Abad Farooqi
    • 1
  • Y. N. Shukla
    • 1
  • S. Sharma
    • 1
  1. 1.Central Institute of Medicinal and Aromatic PlantsLucknowIndia

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