EFFECT OF VOLATILE SUBSTANCES RELEASED FROM OLIVE TREE LEAVE COMPOST ON THE VEGETATIVE GROWTH OF RHIZOCTONIA SOLANI AND FUSARIUM OXYSPORUM F.SP. LYCOPERSICI^*

The effect of volatile substances from olive tree leave compost, as well as from soil and mixture of them 1:1 per dry weight, on the vegetative growth of Rhizoctonia solani and Fusarium oxysporum f.sp. lycopersici was studied by measuring the hyphal length.
Volatile substances were fixed by AgNO₃ solution 1 % or H₃BO₃ solution 5 %.

It was found that both of fungi hyphae were longer when AgNO₃ solution was used for fixation of volatile substances than without fixation.
The differences were statistically significant in classification according to Duncan’s multiple range test, in all cases for compost.

It is therefore indicated that total volatile substances from olive tree leave compost that can be fixed by AgNO₃ solution (NH₃ and unsaturated hydrocarbons, etc.) inhibit the vegetative growth of Rhizoctonia solani and Fusarium oxysporum f.sp. lycopersici.

IV International Symposium on Soil and Substrate Infestation and Disinfestation

K. Tavoularis, A. Papadaki, V. Manios

https://doi.org/10.17660/ActaHortic.1995.382.20