Allelopathic effect of Ferula assa-foetide on seed germination factors of Cucumber plant

The inhibitory or stimulatory effect of one plant on another which is mediated through the release of secondary metabolites is called allelopathy. Apiaceae plants have specified medicinal properties because of their aromatic compounds. To evaluate the effect of aqueous extract of Ferola assa-foetide on the seed germination of the Cucumber plant, this experiment was performed in a completely randomized design with ۴ replication. This experiment consists of different concentration level including: control, ۵, ۱۰, ۱۵, ۲۰, ۲۵, ۵۰, ۷۵ and ۱۰۰% of ferula extract. The traits consist of final germination percentage (FGP), germination index (GI), mean germination time (MGT), radicle length, plumule length, root fresh & dry weight, plumule fresh & dry weight, were evaluated. Remarkable increases in mean germination time and decrease in germination index, final germination percentage, growth parameters were observed in line with an increase in Ferola assa-foetide extract percentage. The inhibition of seed germination was observed at concentrations above ۵۰% which shows the toxic effect of compounds of extract. Thus, to evaluate the allelopathic effect of this extract at the vegetative growth stage, Concentrations less than ۱۵% should be used.

کلیدواژه ها:

Aqueous extract ، Radicle length ، Plumule length