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Evaluation of Allelopathic Potentials from Medicinal Plant Species in Phnom Kulen National Park, Cambodia by the Sandwich Method

Author

Listed:
  • Yourk Sothearith

    (Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
    Ministry of Environment, Morodok Techcho (Lot 503) Tonle Bassac, Phnom Penh 12301, Cambodia)

  • Kwame Sarpong Appiah

    (Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan)

  • Takashi Motobayashi

    (Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan)

  • Izumi Watanabe

    (Laboratory of Environmental Toxicology, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan)

  • Chan Somaly

    (Ministry of Environment, Morodok Techcho (Lot 503) Tonle Bassac, Phnom Penh 12301, Cambodia)

  • Akifumi Sugiyama

    (Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Kyoto 611-0011, Japan)

  • Yoshiharu Fujii

    (Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan)

Abstract

Phnom Kulen National Park, in north-western Cambodia, has huge richness in biodiversity and medicinal value. One hundred and ninety-five (195) medicinal plant species were collected from the national park to examine allelopathic potentials by using the sandwich method, a specific bioassay for the evaluation of leachates from plants. The study found 58 out of 195 medicinal plant species showed significant inhibitory effects on lettuce radicle elongation as evaluated by standard deviation variance based on the normal distribution. Three species including Iris pallida (4% of control), Parabarium micranthum (7.5% of control) , and Peliosanthes teta (8.2% of control) showed strong inhibition of lettuce radicle elongation less than 10% of the control. The results presented could present as a benchmark for isolation and identification of allelochemicals among medicinal plants used in Cambodia.

Suggested Citation

  • Yourk Sothearith & Kwame Sarpong Appiah & Takashi Motobayashi & Izumi Watanabe & Chan Somaly & Akifumi Sugiyama & Yoshiharu Fujii, 2020. "Evaluation of Allelopathic Potentials from Medicinal Plant Species in Phnom Kulen National Park, Cambodia by the Sandwich Method," Sustainability, MDPI, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:gam:jsusta:v:13:y:2020:i:1:p:264-:d:470441
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    References listed on IDEAS

    as
    1. Kwame Sarpong Appiah & Hossein Korrani Mardani & Asma Osivand & Sylvia Kpabitey & Christiana Adukwei Amoatey & Yosei Oikawa & Yoshiharu Fujii, 2017. "Exploring Alternative Use of Medicinal Plants for Sustainable Weed Management," Sustainability, MDPI, vol. 9(8), pages 1-23, August.
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