Yazar "Toncer O." seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • [ X ]
    Öğe
    Essential oil composition of Ocimum basilicum L. at different phenological stages in semi-arid environmental conditions
    (Parlar Scientific Publications, 2017) Toncer O.; Karaman S.; Diraz E.; Tansi S.
    Sweet basil (Ocimum basilicum L.) is known locally as "feslegen or reyhan", belonging to the Lamiaceae family and is widely grown as an ornamental, medicinal and spice crops in the Mediterranean countries, including Turkey. Basil is cultivated in small areas like gardens. However this plant must be produced in the shape of field farming for a new crop. Cultivar, cropping season, plant ontogeny and plant part had significant effects on the yield and quality of the essential oil of O. basilicum as with other essential oil plants. The present work was undertaken with the main objective to investigate the essential oil rate and constitutents of essential oil isolated from the aerial parts of O. basilicum cultivated in Diyarbakir as affected by different development stage. The essential oils obtained by hydrodistillation were analyzed by gas -chromatography coupled with mass spectrometry (GC -MS) The yield of essential oil from different development stages varied between 1.2-1.6%, and the major components identified in essential oils are linalool, eugenol and terpinen-4-ol. The highest linalool content was obtained from flowering stage and it was observed that linalool percentages decreased in the post-flowering period, which showed an increase towards the flowering period, eugenol was rich in pre-flowering stage and the maximum amounts of terpinolen-4-ol were observed in post-flowering stage. © by PSP.
  • [ X ]
    Öğe
    Seed germination rate in lentil (lens culinaris) with chalky spotted
    (Parlar Scientific Publications, 2017) Bicer B.T.; Toncer O.; Kavak H.; Akinci C.
    The chalky spot syndrome is a serious seed-quality problem in red lentil in the southeast Anatolia of Turkey. This research was carried out to determine the chalky spot rate and its effect on the seed germination in twenty lentil genotypes. Germination tests as three groups performed; (i) seeds from damaged location were cleaned, and two groups were divided as damaged and non-damaged, (ii) all seeds from damaged location, and (iii) seeds from non-damaged location. Chalky spot rate among genotypes ranged from 11.0 to 42.92%. Mean of germination speed in damaged seeds was 46.88%, and ranged from 20 to 66% in damaged seeds. Mean of germination speed in non-damaged seeds was 84.5%. Chalky spotted seed rate strongly reduced germination rate. © by PSP.
  • [ X ]
    Öğe
    Variation in ruscogenin contents in Ruscus aculeatus L. growing wild in southern Turkey
    (Chemical Publishing Co., 2007) Tansi S.; Kokdil G.; Karaman S.; Toncer O.; Yilmaz H.
    The ruscogenin contents of the underground and aerial parts of Ruscus aculeatus (Liliaceae) collected from 6 different locations in southern Turkey were investigated by HPLC. The highest ruscogenin content (0.12 %) was recorded from the underground parts of R. aculeatus collected from Incebel/Osmaniye area of Turkey. Ruscogenin contents in aerial and underground parts of R. aculeatus varied the contents did not vary greatly in aerial parts.