Determining the critical period for weed control in summer savory (Satureja hortensis L.): A comparative study across two locations

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dc.contributor.authorKaraman, Yucel
dc.contributor.authorOzlem Tursun, Ayse
dc.contributor.authorTurkmen, Musa
dc.contributor.authorTursun, Nihat
dc.date.accessioned2026-06-19T06:39:32Z
dc.date.available2026-06-19T06:39:32Z
dc.date.issued2025
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractSummer savory (Satureja hortensis L.) is an important medicinal and aromatic plant valued for its essential oil content and its use in the food, pharmaceutical and cosmetics industries. Weed competition is one of the major challenges in the cultivation of this plant. The aim of this study was to determine the critical period for weed control (CPWC) and to evaluate the impact of weed competition on yield and essential oil composition in two different locations (A and B). The dominant weed species were Tribulus terrestris, Amaranthus retroflexus, Xanthium strumarium, Portulaca oleracea and Sorghum halepense. The highest values for yield parameters including essential oil yield, fresh and dry biomass, dry leaf yield and plant height were recorded in the weed-free plots, while the lowest values were observed in the continuously weedy plots. Weed interference caused significant yield losses ranging from 51.0% to 78.7% depending on the location. Based on a 5% acceptable yield loss threshold, CPWC ranged from 7 days after sowing to harvest at Location A (106-1237 growing degree days, GDD), and from 10 to 37 days after sowing at Location B (160-759 GDD). Essential oil yield was highest in weed-free plots (41.19-60.27 L ha-1) and lowest in continuously weedy plots (14.01-29.67 L ha-1). The major constituents of the essential oil were carvacrol (32.3-61.5%) and gamma-terpinene (16.4-28.9%), both of which were affected by weed competition. These results demonstrate the importance of early weed control due to the low competitive ability of summer savory to improve both yield and essential oil quality in S. hortensis production.
dc.identifier.doi10.1080/0972060X.2025.2589453
dc.identifier.endpage1194
dc.identifier.issn0972-060X
dc.identifier.issn0976-5026
dc.identifier.issue6
dc.identifier.scopus2-s2.0-105023467130
dc.identifier.scopusqualityQ3
dc.identifier.startpage1176
dc.identifier.urihttps://doi.org/10.1080/0972060X.2025.2589453
dc.identifier.urihttps://hdl.handle.net/20.500.12899/5647
dc.identifier.volume28
dc.identifier.wosWOS:001625059300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofJournal of Essential Oil Bearing Plants
dc.relation.publicationcategoryDiğer
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260612
dc.subjectEssential Oil Composition
dc.subjectCrop Yield
dc.subjectYield Components
dc.subjectMedicinal Plants
dc.subjectIntegrated Weed Management
dc.titleDetermining the critical period for weed control in summer savory (Satureja hortensis L.): A comparative study across two locations
dc.typeReview

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