Abstract
Allelopathic potential of root exudates from edible perennial herbaceous (Canna indica, Maranta arundinacea, and Xanthosoma sagittifolium) against mycelium of Ganoderma boninense, basal stem rot pathogen of oil palm has been studied in vitro. Root exudates were extracted from 10-day old aseptically growing plants generated from surface-sterilized corm or rhizome on water agar. Allelopathic activity was tested based on inhibition of G. boninense mycelial growth on malt extract agar supplemented with 0.1 and 1.0 μL mL−1 ethyl acetate extract of root exudates. Root exudate from X. sagittifolium and C. indica was found to significantly inhibit the mycelial growth of G. boninense at 0.1 and 1.0 μL mL−1, respectively.
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