Browsing by Author "Toncer, Ozlem"

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Citation - WoS: 1
Citation - Scopus: 1
Effects of Zno Nanoparticules Produced by Green Synthesis on Germination and Seedling Of Salvia Officinalis L. Seeds
(Polish Society Magnesium Research, 2021) Eren, Abdullah; Toncer, Ozlem; Eren, Abdullah; Department of Organic Agriculture / Organik Tarım Bölümü
Nanotechnology is a research subject in many interdisciplinary engineering fields today. Nanoparticles have important effects on seed germination and seedling growth of plants. The aim of this study has been to produce a 54.68 nm-sized ZnO nanoparticle obtained from the Nigella sativa L. plant by green synthesis. The effect of medicinal sage (Salvia officinalis L.) on germination of plant seeds and seedling growth was investigated. The trial was set up under controlled conditions and conducted for 14 days according to a factorial trial design with 5 replications for each dose (0, 0.5, 1.5 and 2.5 mg ZnO NP kg-1). As a result of ZnO NP application in different doses, germination of Salvia officinalis L. seeds varied between 90-94%, stem length was 1.86-2.92 cm and shoot length was between 1.01-1.98 cm. The highest root and shoot length was obtained after the application of 2.5 mg ZnO kg-1 NP. In the light of the results, ZnO nanoparticles are thought to be useful for seed development and agricultural applications.
Citation - WoS: 0
Citation - Scopus: 2
Interactive Effects of Number of Plants and Nitrogen Fertilization on Quality Parameters of salvia Officinalis L. Cultivated in Semi-Arid Environments
(Taylor & Francis Ltd, 2024) İzgi, Mehmet Necat; Karaman, Sengul; Toncer, Ozlem; Department of Medical and Aromatic Plants / Tıbbi ve Aromatik Bitkiler Bölümü
This research aimed to elucidate the interplay between number of plants and nitrogen dose on the agronomic attributes, as well as the essential oil yield and composition of Salvia officinalis L. (sage) in the challenging ecological conditions of Mardin, situated in South Eastern Anatolia. A split-plot experimental design was employed during 2018-2019, manipulating the variables of number of plants and nitrogen application rates. The experiment identified camphor, 1,8-cineole, alpha-thujone, and beta-thujone as the major components. The PCA analysis unveiled statistically significant inverse correlations between the concentration of camphor and 1,8-cineole, as well as alpha- and beta-thujone. The results demonstrated that the combination of lower plant number with elevated nitrogen levels yielded higher fresh herb dry herb and dry leaf. While lower plant number and higher nitrogen application independently exerted positive influences on essential oil production and yield, the interactive impact of these treatments yielded inconclusive results. Specifically, nitrogen treatments led to an increase in camphor content while reducing alpha- and beta-thujone contents in the essential oil. Conversely, lower plant numbers resulted in decreased camphor content and an increase in thujone content within the oil. In light of these findings, it is recommended that, under semi-arid conditions, optimal yields can be achieved by employing plant number of 50000 plants ha(-1) and a nitrogen fertilizer rate of 120 kg ha(-1). This research sheds light on the intricate relationship between agronomic factors and the quality of sage cultivation, offering valuable insights into sustainable agricultural practices in semi-arid regions.