Open AccessPostharvest Biological Control ofBotrytis cinereaon Kiwifruit by Volatiles of [Isabella] Grapes
Author(s) -
Eleni K. Kulakiotu,
Constantine C. Thanassoulopoulos,
E. Sfakiotakis
Publication year - 2004
Publication title -
phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.264
H-Index - 131
eISSN - 1943-7684
pISSN - 0031-949X
DOI - 10.1094/phyto.2004.94.12.1280
Subject(s) - botrytis cinerea , postharvest , biology , horticulture , biological pest control , botany
The potential of volatile substances emitted by ‘Isabella’ grapes (Vitis labrusca) to control gray mold (Botrytis cinerea) on ‘Hayward’ kiwifruit (Actinidia deliciosa) was studied. The closed Mariotte system was used as a bioassay method to analyze quantitatively the biological action of these volatiles on B. cinerea growth. In vivo experiments compared the effects of volatiles from ‘Isabella’ grapes versus volatiles from ‘Roditis’ grapes (V. vinifera) and a B. cinerea control on the growth and disease development of B. cinerea on kiwifruit. The effect of the volatiles on the growth of B. cinerea was tested at various temperatures and times of inoculation after the wounding of kiwifruit, as well as using various weights and developmental stages of the grapes. The ‘Isabella’ volatiles limited the incidence of infection by reducing both the inoculum density and the activity of the pathogen. The weight and developmental stage of the grapes were important in the degree of inhibitory action of the ‘Isabella’ volatiles. The inhibitory action was more pronounced at 21°C irrespective of the inoculation time after wounding. The study shows the potential for successful biological control of B. cinerea on kiwifruit by volatiles from ‘Isabella’ grapes.