, Volume 121, Issue 2, pp 101–104 | Cite as

Potential use of the essential oil ofTrachyspermum ammi against seed-borne fungi of Guar (Cyamopsis tetragonoloba L. (Taub.))

  • Suresh K. Dwivedi
  • N. K. Dubey
Plant Mycology And Crop Protection


Essential oils isolated from leaves and seeds of seven umbelliferous plants were tested against the growth ofAspergillus flavus. Those from seeds ofTrachyspermum ammi, Cuminum cyminum, Carum carvi, Daucus carota and from leaves ofAnethum graveolens exhibited antifungal activity against the test fungus. Amongst these, oil from seeds ofTrachyspermum ammi was most toxic. Its minimum inhibitory concentration was 300 ppm, at which it exhibited fungistatic but not phytotoxic properties, when tested at 200, 300 and 400 ppm. The fungitoxic potency ofTrachyspermum seed oil remained unchanged after a long storage period and at high inoculum density of the test fungus. The oil was thermostable and was more efficaceous than the fungicides Agrosan G.N., Benlate, Ceresan, Dithane M-45 and Thiovit commonly used for the control of plant diseases.

Key words

Essential oils Fungicides Fungitoxicity Phytotoxicity Trachyspermum ammi Umbelliferae 


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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • Suresh K. Dwivedi
    • 1
  • N. K. Dubey
    • 1
  1. 1.Herbal Pesticide Laboratory, Centre of Advanced Study in BotanyBanaras Hindu UniversityVaranasiIndia

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