Hyssop essential oil is a rich source of biologically active compounds. This study aimed to characterize the chemical composition of essential oil from the hyssop herb and its phytotoxicity against germination and initial growth of wheat and mustard. The main compounds of the oil were identified as isopinocamphone and pinocamphone. In a Petri dish experiment, the oil mainly inhibited the germination and initial growth of wheat, whereas mustard was less affected. In conclusion, hyssop oil displays phytotoxic potential against the studied species and should be tested further.
Essential oils are a rich source of compounds for botanical pesticides. This study aimed to characterize the chemical composition of essential oil from parsley seeds and its phytotoxicity against the germination and initial growth of wheat and mustard. The main compounds of the oil were α-pinene, β-pinene, and apiol. In a Petri dish experiment, the oil inhibited germination of seeds of both species. However, the growth of seedlings of both species was more inhibited, especially for wheat. In conclusion, parsley oil displays phytotoxic potential against the studied species, which should also be tested in soil conditions and against weeds.
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