Browsing by Author "Ertekin, Esra Nermin"

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    Bazı ağır metallerin at dişi mısır (Zea mays L.)’da çimlenme ve erken fide gelişimi üzerine etkileri
    (2021) Ertekin, Esra Nermin; Bilgen, Mehmet
    Bu çalışma Akdeniz Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümünde 2017 yılında at dişi mısırda (Zea mays L.) bazı ağır metallerin çimlenme ve erken fide gelişimi üzerine etkisini belirlemek için yürütülmüştür. Ağır metaller olarak kurşun (Pb), nikel (Ni), krom (Cr), kadmiyum (Cd) ve cıva (Hg) ve ağır metal dozları olarak 0 (kontrol), 100, 200, 400 ve 800 mg L-1 dozları kullanılmıştır. Deneme tesadüf parsellerinde faktöriyel deneme desenine göre 4 tekerrürlü olarak 120 mm çapındaki Petri kutularında yürütülmüştür. Çimlenme ve erken fide evresinde çimlenme oranı (%), çimlenme indeksi, ortalama çimlenme süresi (gün), kök uzunluğu (mm), sürgün uzunluğu (mm), kök yaş ağırlığı (mg bitki-1), sürgün yaş ağırlığı (mg bitki-1), kök kuru ağırlığı (mg bitki-1) ve sürgün kuru ağırlığı (mg bitki-1) özellikleri incelenmiştir. Bu çalışmanın sonuçlarına göre at dişi mısırın çimlenme ve ilk fide evresinde ele alınan ağır metallerin toksikolojik etkisi “cıva>kadmiyum>kurşun>krom>nikel” şeklinde sıralanabilir. Ayrıca Hg ve Cd ağır metallerinin 400 ve 800 mg L-1 dozları diğer ağır metallerin aynı dozlarından daha fazla toksik etkide bulunmuştur. Ele alınan ağır metal dozlarından 100 ve 200 mg L-1 dozları çimlenme ve erken fide evresinde at dişi mısır üzerinde uyarıcı etki yaratmıştır.
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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) Aygün, Yusuf Ziya; Eren, Yılmaz; 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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    Essential oil content and components in different purple basil genotypes according to the diurnal changes
    (BANGLADESH BOTANICAL SOC, 2023) Türkmen, 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.