Affiliation(s)
1. Département de Biologie végétale, UFR Sciences Biologiques, Université Peleforo Gon Coulibaly Korhogo, Côte d’Ivoire
2. Laboratoire de Physiologie végétale, UFR Biosciences, Université Félix Houphouët-Boigny Cocody-Abidjan, Côte d’Ivoire
3. Laboratoire de Zoologie et Biologie Animale, UFR Biosciences, Université Félix Houphouët-Boigny Cocody-Abidjan, Côte d’Ivoire
4. Centre d’excellence sur les changemants climatiques la biodiversité et l’agriculture durable (CEA-CCBAD)
ABSTRACT
This study aims at determining and comparing the in vitro antifungal activity of six EOs (essential oils) extracted from Monodora myristica, Melaleuca quinquenervia, Eucalyptus torelliana, Chenopodium ambrosioides, fresh Zingiber officinalis and dehydrated Zingiber officinalis with those of three
synthetic fungicides (Callicuivre, Banko plus and Mancozeb) on Sclerotium rolfsii a pathogenic fungus of tomato in Côte d’Ivoire. The products
were added to PDA (potato
dextrose agar) medium at various concentrations.
The results showed different aspects of the mycelium, different activities on mycelium
growth and sclerotia production depending on the explants (mycelium or sclerotia).
Depending on their IC and MGI (mycelium growth inhibition), the oils stemming from Chenopodium ambrosioides and fresh Zingiber officinalis showed more inhibitory activities on mycelial growth
(reduction rate of 100%) and sclerotia production at 250 ppm. These activities were
close to or even greater than those of fungicides. The mancozeb fungicide showed
stronger activity than the others by inhibiting mycelium growth and sclerotia production of mycelium explants at 250 ppm. This study offers the possibility of using EOs in the control strategies of Sclerotium rolfsii.
KEYWORDS
Solanum lycopersicon, Sclerotium rolfsii, sensitivity,
synthetic fungicides, EOs.
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