Abstract:

It is important for sustainable agriculture to develop environmentally friendly control methods instead of synthetic chemicals that cause problems on the environment and human health as a result of misuse. In this study, hydrosols obtained from Origanum syriacum and O. majorana (mercanköşk) (0.25, 0.5, 1, 2, 4, 8 and 10 ml/petri doses) of Amaranthus retroflexus L. (the red rooted wolf hole), Portulaca oleracea L. (the seed tree), Physalis angulata L. (the light tree), Echinochloa colonum (L.) Link. The effect of Solanum nigrum L. (dog grain) on grinding has been studied. In planting studies, both hydrosols in the lowest dose (1%) prevented the seed of all foreign herbs except S. nigrum under an average of 50%. At the highest dose (% 16), this rate occurred above 80% (except for E. colonum and P. oleracea).

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Abstract:

To develop environmentally friendly control methods to replace synthetic chemicals which may be misused and cause problems to environment and human health is important for sustainable agriculture. In this study, efficacies of hydrosols of Origanum syriacum L. (Syrian oregano) and Origanum majorana L. (sweet marjoram), at the doses of 0.25, 0.5, 1, 2, 4, 8 and 10 ml/petri, were tested on seed germination of Amaranthus retroflexus L. (redroot pigweed), Portulaca oleracea L. (common purslane), Physalis angulata L. (cutleaf groundcherry), Echinochloa colonum (L.) Link. (barnyard grass) and Solanum nigrum L. (black nightshade). As average, both plants’ hydrosols at the lowest concentration (1%) inhibited germination of the all weeds, except S. nigrum, less than 50% The inhibition ratio was found more than 80% (except E. colonum and P. oleracea) at the highest concentration (%16) used.