Influence on Fumigation Antifungal Activity of Essential Oil from Fruit of Chenopodium ambrosioides by Three Factors
CHEN Lijun
WANG Guojun
ZHI Ya’ nan
FU Shenglan
SHI Hongzhong
NING Wanguang
Abstract：In order to evaluate the influence coming from temperature, water volume and ways of placement,on fumigation antifungal activity of essential oil ( EO) from fruit of Chenopodium ambrosioides, the inhibition rate against Botrytis cinerea, Sclerotinia sclerotiorum and Bipolaris oryzae by the EO was tested through dual culture in this study.The inhibition rate of EO from fruit of C.ambrosioides rose initially and dropped later with temperature increasing, contrary to the colony diameter.The inhibition rates against the three fungi were lowest respectively at 20 ℃,20 ℃ and 30 ℃, among their optimum growth temperatures.The inhibition rate gradually decreased as water volume within Petri dish increased, and the lowest volume treatment(5 μL/dish) presented difference with higher volume treatments.With inverted culture,the inhibition rate was higher than normal,and they had significant or very significant differences against B.cinerea and S.sclerotiorum.The results indicated that fumigation antifungal activity of EO from fruit of C.ambrosioides was lowest at the optimum growth temperatures of fungi,the antifungal activity gradually decreased as water volume increased,and inverted culture was better than normal.
Keywords：C.ambrosioidesessential oilfumigation antifungal activitytemperatureinfluence factors
Publication Date：2015-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 73-76 )