In vitro effect of fermented maize slurry and ethanol extracts of five plants against Sclerotium rolfsii Sacc. of tomato ( Lycopersicon esculentum Mill.).

Autor: Adesegun, E.A., Akintokun, A.O., Adebayo, O.S., Bankole, M.O.
Předmět:
Zdroj: Archives of Phytopathology & Plant Protection; Jul2013, Vol. 46 Issue 10, p1182-1188, 7p
Abstrakt: Sclerotium rolfsiiSacc. is an important fungal pathogen affecting the production of tomato (Lycopersicon esculentumMill.). Conventional control methods using chemicals are expensive, which constitute environmental hazards. This has necessitated the search for alternatives in botanicals. Ethanol and supernatant solution of fermented maize slurry extracts fromOcimum gratissimum, Cymbopogon citratus, Xylopia aethiopica, Aframomum meleguetaandAllium sativumwere evaluated.In vitrotest was carried out at 1, 2, 3, 4 and 5% concentrations against the pathogen. Mycelial growth was significantly reduced in the following descending order:O. gratissimum > A. melegueta > A. sativum > X. aethiopica > C. citratus. Supernatant solution extracts ofO. gratissimumandA. meleguetaat 5% concentration gave highest mycelial reduction (0.00 mm), respectively, whileO. gratissimumethanol extract recorded highest mycelial reduction (0.23 mm) among the ethanol extracts. Supernatant solution of fermented maize slurry extracts ofO. gratissimumandA. meleguetaat 5% concentration was more effective in reducing mycelial growth ofS. rolfsii. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index