AUTHOR(S)
G. S. Vishwakarma and S. Mittal

ABSTRACT

The presentstudy was undertaken to explore the bioherbicidal potential of essentialoil(EO)(25 to 250μg/ml) from Eucalyptus tereticornis against one of themajor weed of rice (Oryza sativa L.), i.e. Echinochloa crus –galli L. considering percent germination, root length and shoot length developmentchlorophyll, protein and carbohydrate content and percent cellularrespiration). Studies revealed that E. tereticornis EO suppressed thegrowth and affects the physiology of the test plant. For instance, 100 and250μg/mL oil affects seed germination and seedling development of test weed. Thechlorophyll content of the E. crus- galli seedlings decreased by 80%at250μg/mL treatment of EO. Similarly, reduction in respiratory activity onexposure to 250μg/mL of EO was 60%. The effect of EO on macromolecules, i.e.carbohydrates and proteins also followed the similar trend. The present studyconcludes that EO of E. tereticornis shows toxicity towards E. crus-galli and has potential to be used as bioherbicide.

DOI
https://doi.org/10.57182/jbiopestic.7.0.47-53

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