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Volatile Oil from Eucalyptus species As Novel Bioherbicides

Assessing phytotoxicity of Eucalyptus volatile oils on common weeds for potential bioherbicide development. Results show effective weed suppression with impact on plant activity and membrane integrity. Potential bioherbicide application.

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Volatile Oil from Eucalyptus species As Novel Bioherbicides

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  1. Volatile Oil from Eucalyptus species As Novel Bioherbicides Daizy R. BATISH*, Shalinder KAUR, Harminder Pal SINGH and Ravinder K. KOHLI Botany Department, Panjab University, Chandigarh

  2. Objective of the Study To test Phytotoxicity of eucalypt volatile oils towards weeds (Echinochloa crus-galli, Parthenium hysterophorus and Cassia occidentalis). with a view to choose them for development as a bioherbicide.

  3. Echinochloa crus-galli Parthenium hysterophorus

  4. 100 r = 0.954 1 DAT 80 r = 0.991 60 Visible Injury (%) 40 20 E. crus-galli 0 100 21 DAT 80 r = 0.941 Visible Injury (%) 60 r = 0.980 40 20 0 0 2 4 6 8 10 Concentration (%) Changes in Injury Level

  5. Conclusions • Eucalypt oils have a weed suppressing effect. • Affect the photosynthetic and respiratory activity. • Treatment causes visible injury in the mature plants • Result in Rapid Electrolyte leakage – Membrane Integrity • Could be Used as Bioherbicide.

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