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    Determination of seed yield, quality and fixed oil components of different basil (Ocimum basilicum L.) genotypes: Evaluation of fatty acid profile by PCA biplot analysis
    (2022) Türkmen, Musa; Eren, Yılmaz; Aygün, Yusuf Ziya; Ertekin, Esra Nermin
    Basil (Ocimum basilicum L.) plants are generally grown for different properties and produce seed with a consid-erable amount at the end of the growing season. This study was carried out to determine the seed yield, quality and fixed oil components of eight different basil (B) genotypes with purple (PB) and green (GB) leaf color ob-tained from different countries. In other words, seed yield and quality, fixed oil components, the seed yield, 1000 seed weight, oil content, oil yield, crude protein, ash, linoleic acid, linolenic acid, oleic acid, palmitic acid, stearic acid, hexadecatrienoic acid properties, ethyl linolate and trace oil contents were investigated. Seed yield, 1000 seeds weight and oil yield were significant statistically among the genotypes. While the best result in terms of seed and oil yield was obtained from GB1, the highest 1000 seeds weight was recorded in GB4. Palmitic acid and trace oil contents of genotypes were significant statistically. The highest palmitic acid content was detected in GB2, whereas the maximum trace oil contents were obtained from GB5. In results of principal components analysis (PCA) purple and green basil types demonstrated different features in terms of fixed oil components. GB2, GB4 and GB5 basil genotypes which have green leaf types were superior according to the PCA. GB2 genotype obtained from Hungary was the better in terms of seed yield and fixed oil components among the purple and green basil genotypes used in this research.
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    DIURNAL VARIATION OF ESSENTIAL OIL RATIO AND COMPOSITION OF SOME BASIL GENOTYPES
    (Bangladesh Botanical Soc, 2022) Aygun, Yusuf Ziya; Eren, Yilmaz; Ertekin, Esra Nermin
    The change of essential oil ratios and components of five different basil genotypes harvested at different times (00:00, 06:00, 12:00, 18:00) in day was investigated. Plants were grown under the field conditions and essential oils of the plants were extracted by hydro-distillation method. Identification of essential oil components were performed by GC-MS. It was the G5 genotype that had the highest essential oil content in all plant parts, regardless of the time of day. The highest essential oil content (2.8%) was obtained from the dry leaves of the G5 genotype from the sampling made at 18:00. The main components of essential oils were determined as linalool, eucalyptol, trans alpha-bergamotene, methyl cinnamate, alpha-muurolol and eugenol. However, while the ratios of these components differed between genotypes, the changes in time of day were similar for some components. Linalool content tended to increase mostly in the middle of the day. This study indicated that essential oil ratio and components of different basil genotypes significantly differed according to harvesting times in day.
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    Effects of some heavy metals on germination and seedling growth of sorghum
    (Kahramanmaraş Sütçü İmam Üniversitesi, 2020) Ertekin, Esra Nermin; Ertekin, İbrahim; Bilgen, Mehmet
    Heavy metal contamination in soils can adversely affect seedgermination and seedling growth of most plants. This research wasconducted to determine the effects of different doses (0, 100, 200, 400and 800 mg L-1) of Ni (nickel), Cd (cadmium), Pb (lead), Cr (chromium)and Hg (mercury) on seed germination and seedling growth ofsorghum. The study was conducted in laboratory conditions at theAgricultural Faculty of Akdeniz University in 2017. Sorghum cv.N48×Early Sumac was used as the plant material. In the research,germination rate (GR), relative germination index (RGI), meangermination time (MGT), relative vigor index (RVI), relative rootlength (RRL), relative shoot length (RSL), root fresh weight (RFW)and shoot fresh weight (SFW) were measured during germination andseedling growth to determine the effects of heavy metals. The resultsshowed that both germination and seedling growth properties wereadversely affected by heavy metals. In addition, while the negativeeffect of cadmium on germination properties was limited, it hadserious negative effects on seedling characteristics of sorghum.Increasing heavy metal doses adversely affected all investigatedproperties. In conclusion, all heavy metals including Hg and Cd hadnegative effect on germination and seedling growth of sorghum in thestudy.
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    ESSENTIAL OIL CONTENT AND COMPONENTS IN DIFFERENT PURPLE BASIL GENOTYPES ACCORDING TO THE DIURNAL CHANGES
    (Bangladesh Botanical Soc, 2023) Turkmen, Musa; Ertekin, Esra Nermin
    In the present study the diurnal variations in plant parts of different purple basil genotypes were determined. Three different purple basil genotypes (Arapgir, Piros and Midnight) were used as plant material. Plants were harvested at 06:00, 12:00, 18:00 and 00:00 hrs to determine the diurnal variation within a day at harvesting time. Essential oil ratio among genotypes, harvesting times and parts of plant varied between 0.460.95%, 0.60 to 0.92% and 0.14-1.29%, respectively. Essential oil ratios among the triple interactions were found to range from 0.05 to 2.57%. The major essential oil was linalool in all genotypes. Results showed that the higher essential oil ratio can be obtained from dry flowers of Arapgir genotype harvested at 00:00 and also, Midnight genotype contained higher essential oil content than others.