Allelopathic effect of some essential oils on seed germination of Lathyrus annuus and Vicia villosa
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2013, Vol 3, Issue 4
Abstract
It has been shown that chemicals found in extracts or essential oils of plants have allelopathic effects on seed germination. Laboratory bioassay was laid out in order to study the inhibitory effects of some essential oils on seed germination of two weeds (Lathyrus annuus and Vicia villosa). The treatments included control (distilled water), ethanol 9.6% and different concentrations (200, 400, 600 and 800 ppm supplement with 9.6% ethanol at all) of wild mint (Mentha longifolia), coriander (Coriandrum sativum L.), fennel (Foeniculum vulgare), green cumin (Cuminum cyminum L.) and caraway (Carum carvi L.) essential oils. Results showed that both ethanol and essential oils prevented seed germination of Vicia villosa, and Inconsiderable rates of germination (2.2 – 4.4 %) were observed only by ethanol and low concentrations of essential oils. Also all essential oils and ethanol decreased Lathyrus annuus germination compared with control. All essential oils except for the fennel essential oil were more effective on inhibiting Lathyrus annuus germination than ethanol. Moreover, radicle growth was stopped after 7 days and seedlings were did not appear at treated seed for both species. The germination percentage at untreated seeds of Vica villosa and Lathyrus annus was 75.55% and 80%, respectively.
Authors and Affiliations
Abdol Rahman Rahimi, Seyyed Javad Mousavizadeh, Haydeh Mohammadi, Asad Rokhzadi, Mohammad Majidi, Sheno Amini
Keywords
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