Allelopathic potential of Ferula assa-foetide on growth and some biochemical properties in tomato (Lycopersicum esculentum l.)

Ferula assa - foetida is a genus of perennial herbs belonging to the Apiaceae family. Despite many reports about the various properties of this endangered Iranian native plant, little attention has been paid to the allopathic properties of it. Allelopathy is the inhibitory or stimulatory effect of one plant on another which is mediated through the release of secondary metabolites. Since chemical pesticides have many adverse effects on health and the environment, this study aimed to investigate the allelopathic effect of Ferula assa - foetida on tomato. to determine its best concentration with the least inhibitory effect on growth and biochemical factors of them, the most pesticide effect, and finally the capacity of the use of this potential for producing natural pesticides. This experiment was carried out under a completely randomized design with ۴ different treatment of extract concentration in ۳ replications. Remarkable increases in carotenoid, Chlorophyll a/b ratio, proline, sugar content and a remarkable decrease in physiological factors: total Chlorophyll and protein were observed in line with an increase in Ferula assa - foetida Extract percentages, which shows increasing the concentration of aqueous extract of Ferula assa - foetida made stress because of the absorption of its effective compounds by the plant. Considering the pesticidal properties of this extract on Aphids, the most suitable concentration of the extract, which is recommended for use as a biological pesticide is ۱۵%.

Keywords:

Aqueous extract , Pesticide , Physiological factors