University of Tabriz Journal of Agricultural Science and Sustainable Production 2476-4310 32 2 2022 08 06 Investigation of allopathic effect of some medicinal plants on germination and growth of dodder (Cuscutsa campestris Yuncker) Investigation of allopathic effect of some medicinal plants on germination and growth of dodder (Cuscutsa campestris Yuncker) 285 298 15013 10.22034/saps.2021.48384.2749 FA Naeeme Molaei Kordabad Science and Research Branch, Islamic Azad University Saeideh Alizadeh-salteh Marzie Ghanbari Jahromi Science and Research Branch, Islamic Azad University Moosa Saber University of Tabriz Journal Article 2021 10 12 Background and Objective: The present study was performed to investigate the allelopathic properties of some medicinal plants on the growth, propagation and germination of sauce parasite seeds.<br />Materials and Methods: In the first stage, 18 plants cultivated in the garden of medicinal plants were infected with sauce seeds and the degree of infection or resistance to this parasite was investigated. Then 7 selected plants were cultured and infected. In the other part of the experiment, 4 types of aqueous and hydroalcoholic extracts were prepared from 4 dodder-resistant medicinal plants and tested on seed germination in 4 concentrations by culturing in pteridish. Essential oil analysis of the tested herbs was performed by gas chromatography-mass spectrometry. The levels of phenol and flavonoids in the extracts were also evaluated.<br />Results: Among these plants, chamomile and male hops showed 100% contamination and most cultivated plants showed no contamination. Among the cultivated plants, Rosa, hops, hyssop and sage showed the highest resistance to contamination of the sauce. Among the used extracts, hydroalcoholic and aqueous extracts at a concentration of 15% of rosemary and hops showed the greatest inhibitory effect on germination of sauce seeds. The amount of phenol and total flavonoids in the hydroalcoholic extract of these two plants was the highest.<br />Conclusion: Hydroalcoholic extracts of rosemary and hops prevent the germination of the sauce and also cultivation of these plants around gardens and fields can prevent further spread of the dodder.<br />Key words: Cuscuta, hydroalcoholic extract, aqueous extract, Humulus, Rosa damascena Background and Objective: The present study was performed to investigate the allelopathic properties of some medicinal plants on the growth, propagation and germination of sauce parasite seeds.<br />Materials and Methods: In the first stage, 18 plants cultivated in the garden of medicinal plants were infected with sauce seeds and the degree of infection or resistance to this parasite was investigated. Then 7 selected plants were cultured and infected. In the other part of the experiment, 4 types of aqueous and hydroalcoholic extracts were prepared from 4 dodder-resistant medicinal plants and tested on seed germination in 4 concentrations by culturing in pteridish. Essential oil analysis of the tested herbs was performed by gas chromatography-mass spectrometry. The levels of phenol and flavonoids in the extracts were also evaluated.<br />Results: Among these plants, chamomile and male hops showed 100% contamination and most cultivated plants showed no contamination. Among the cultivated plants, Rosa, hops, hyssop and sage showed the highest resistance to contamination of the sauce. Among the used extracts, hydroalcoholic and aqueous extracts at a concentration of 15% of rosemary and hops showed the greatest inhibitory effect on germination of sauce seeds. The amount of phenol and total flavonoids in the hydroalcoholic extract of these two plants was the highest.<br />Conclusion: Hydroalcoholic extracts of rosemary and hops prevent the germination of the sauce and also cultivation of these plants around gardens and fields can prevent further spread of the dodder.<br />Key words: Cuscuta, hydroalcoholic extract, aqueous extract, Humulus, Rosa damascena https://sustainagriculture.tabrizu.ac.ir/article_15013_3bfd92fe1bdfebb00a05d62c1f5ba5e8.pdf