The experiment was carried out in two vegetation seasons of 2013 and 2014 at the Isparta and Eskisehir ecological conditions. The main purpose of the study was to determine the effects of years and locations on seed yield, some yield-related traits, essential oil content and fixed oil ratio of black cumin populations. In the study, black cumin populations were obtained from Burdur, Tokat, Usak, Eskisehir and Antalya provinces. The experiments were arranged according to a randomized complete-block design with three replications. The average seed yield varied between 201.0-407.1 kg ha -1 in 2013 and 458.9-790.3 kg ha -1 in 2014. In compared to locations; while yield components of black cumin populations significantly varied according to locations and years, seed yield in both years were higher in Isparta location on all populations due to higher rainfall than Eskisehir. In compared to populations; the highest seed yield was determined in Usak population and it was followed by Eskisehir population. But the essential oil wasn't detected in Usak population. The highest essential oil content was obtained from Tokat population in both locations and years, it was followed by Eskisehir population. The fixed oil ratios were higher in Tokat, Usak and Antalya populations in both locations and years.
The purpose of this research carried out in 2018 under Eskişehir ecological conditions was to determine the effect of six different harvest dates (T1: 16 August, T2: 29 August, T3: 14 September, T4: 28 September, T5: 15 October and T6: 31 October) on the yield and quality properties rosemary (Rosmarinus officinalis L.). The experiment was established according to a randomized complete-block design with four replications. The composition of the essential oil obtained by the hydro-distillation from the dry leaves of the rosemary plant was analyzed by GC-MS. In the experiment carried out, the mean values of plant height (cm), fresh herb yield (t ha -1 ), dry herb yield (t ha -1 ), dry leaf yield (t ha -1 ), essential oil ratio (%), essential oil yield were determined as 61.87 cm, 15.78 t ha -1 , 5.80 t ha-1, 3.55 t ha -1 , 0.69% and 23.92 l ha -1 , respectively. In the essential oil samples obtained from the harvests made at different dates, 35 different components were identified. The values of the camphor, 1-verbenone, α-pinene, borneol and 1,8-cineol components determined as the main component in the analyzed essential oil samples ranged from 11.67 to 14.78%, from 8.47 to 11.77%, from 8.74 to 11.82%, from 8.61 to 11.12% and from 7.01 to 9.07%, respectively.
Bu araştırmanın amacı lavandin (Lavandula × intermedia) bitkisinde farklı (Afyon, Eskişehir, Isparta ve Uşak) lokasyonların uçucu yağ oranı ve uçucu yağın kimyasal kompozisyonu üzerine etkisini belirlemektir. Bitkiler 4 farklı lokasyonda yetiştirilmiştir. 48 saat boyunca 35 °C'de kurutulmuş olan çiçek örnekleri, 210 dakika süreyle hidro-distilasyona tabi tutularak uçucu yağ oranları belirlenmiştir. Örneklerin uçucu yağ bileşenleri GC/MS cihazı kullanılarak tespit edilmiştir. Farklı lokasyonlardan elde edilen uçucu yağ oranları sırasıyla: %5.93 (Afyon), %5.63 (Eskişehir), %7.80 (Isparta) ve %6.57 (Uşak)'dır. GC/MS cihazında yapılan analiz sonuçlarına göre, uçucu yağ örneklerinde 40 farklı bileşen tespit edilmiştir. Analiz edilen uçucu yağ örneklerinin ana bileşenleri linalool (%41.34-53.10), linalil asetat (%1.83-23.54), kafur (%4.48-7.60) ve 1,8-sineol (%1.95-6.27)'dur. Sonuçlar; farklı lokasyonların melez lavantanın (Lavandula × intermedia) uçucu yağ oranı ve kimyasal komposizyonu üzerinde etkili olduğunu göstermiştir.
Effect of Different Locations on Essential Oil Content and Chemical Composition inLavandin (Lavandula × intermedia Emeric ex Loisel.
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