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Baličević, Renata; Svalina, Toni; Posavac, Diana; Ravlić, Jelena; Ravlić, Marija
Glasnik zastite bilja, 04/2023, Volume: 46, Issue: 3Journal Article
Medicinal and aromatic plants with allelopathic effect are a potential source of natural herbicides. The experiment was conducted in order to assess herbicidal potential of meadow sage (Salvia pratensis L.) on germination and growth of weed species velvetleaf (Abutilon theophrasti Med.) and common corn-cockle (Agrostemma githago L.). Water extracts from S. pratensis dry biomass in different concentrations were evaluated under controlled laboratory conditions in Petri dish bioassay. Herbicidal effect of S. pratensis extracts depended on the extract concentration and weed species. In general, higher concentrations of water extract showed greater negative effect on germination and growth parameters of weed seedlings. A. githago had greater sensitivity to S. pratensis extracts with reductions in germination and seedlings growth up to 100% in treatments with 7.5% and 10% extract concentrations. A. theophrasti germination was not affected by water extracts, however, substantial reductions of root and shoot length as well as fresh weight of seedlings were recorded. S. pratensis proved as promising plant species for further studies. Ljekovite i aromatične biljke s alelopatskim djelovanjem potencijalni su izvor prirodnih herbicida. Pokus je proveden kako bi se utvrdio herbicidni potencijal livadne kadulje (Salvia pratensis L.) na klijanje i rast korovnih vrsta Teofrastov mračnjak (Abutilon theophrasti Med.) i poljski kukolj (Agrostemma githago L.). Vodeni ekstrakti od suhe biomase S. pratensis u različitim koncentracijama procijenjeni su u kontroliranim laboratorijskim uvjetima u pokusu u Petrijevim zdjelicama. Herbicidni utjecaj ekstrakata S. pratensis ovisio je o koncentraciji ekstrakta i vrsti korova. Općenito, više koncentracije vodenog ekstrakta pokazale su veći negativan učinak na klijavost i parametre rasta klijanaca korova. Vrsta A. githago pokazala je veću osjetljivost na ekstrakte S. pratensis sa smanjenjem klijavosti i rasta klijanaca do 100 % u tretmanima s koncentracijama ekstrakta od 7,5 % i 10 %. Vodeni ekstrakti nisu imali utjecaja na klijavost A. theophrasti, ali je zabilježeno značajno smanjenje duljine korijena i izdanaka kao i svježe mase klijanaca. S. pratensis pokazala se kao perspektivna biljna vrsta za daljnja istraživanja.
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