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    Blooming stages of Turkish hyssop (Hyssopus officinalis L.) affect essential oil composition
    (Taylor & Francis As, 2008) Kizil, Suleyman; Toncer, Ozlem; Ipek, Arif; Arslan, Neset; Saglam, Sevil; Khawar, Khalid Mahmood
    Hyssop (Hyssopus officinalis L.), native to the Caucasus, North Western Iran, Turkish North Eastern Black Sea region, and Southern Anatolia, is a highly valued medicinal plant. The experiment was conducted to find the effect of harvesting at different blooming stages of the plant on fresh and dry herbage yield, dry leaf yield, essential oil content, and essential oil components. In total, twenty-nine components were identified in hyssop essential oil by GC/MS. Isopinocamphone was the dominating component (47.9 51.4%) in the all analysed oil samples. The results clearly demonstrated that oil contents are seriously affected by the environmental conditions and stage of blooming, with the highest oil yield and oil contents at the post-blooming stage.
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    DETERMINATION OF SOME AGRONOMICAL AND DYEING PROPERTIES OF DYER'S CHAMOMILE (ANTHEMIS TINCTORIA L.)
    (Univ Zagreb, Fac Agriculture, 2005) Kizil, Suleyman; Kayabasi, Nuran; Arslan, Neset
    The present study was designed to determine some agronomical properties and fastnesses of dyeing (against light, abrasion and dry and wet water spotting) with Anthemis tinctoria, which is a perennial herb, used as traditional dyeing in many places of the world. The field experiment was laid out in a randomised block design with three replications and four plant densities (20 x 10 (500.000 plant/ha), 20 x 20 (250.000 plant/ha), 40 x 10 (250.000 plant/ha), 40 x 20 (125.000 plant/ha), 60 x 10 (166.600 plant/ha) and 60 x 20 cm (83.300 plant/ha) were used, respectively. In the field trial, flower diameter length varied between 1.53-1.84 mm, fresh flower head yield varied between 2.42-14.19 kg. ha(-1) and dry flower head yield varied between 0.9-3.61 t. ha(-1). For dyeing, alum of aluminium, copper-sulphate, zinc-chloride, potassium-bichromate, sodium chloride, sodium sulphate, sodium sulphite and iron-sulphate were used as mordant. A total of 25 dyeing treatments were performed, and very different colours and their tons were obtained.
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    Effects of different planting dates on improving yield of Fritillaria imperialis L. and Fritillaria persica L. bulbs damaged by small narcissus fly (Eumerus strigatus Fallen)
    (Academic Journals, 2008) Kizil, Sueleyman; Arslan, Neset; Oelmez-Bayhan, Selime; Khawar, Khalid Mahmood
    Fritillaria imperialis and F. persica were planted during April 2003 and May 2004 growing seasons on the basis of split block design with three replications to investigate the effects of planting dates on various plant parameters and extent of recovery by planting 25% damaged bulbs. The results showed significant effects of planting dates on plant height, number of bulbs per plant and infected bulb ratio. A comparison of the two species showed that F. persica gave more bulblets than F. imperialis. A general comparison of the two species also showed that damaged bulbs of F. imperialis produced lesser yield compared to F. persica. Furthermore, both species gave more number of bulblets from early and mid September plantings compared to early and mid October plantings. The most suitable date of planting was determined as September 1st and 15th.
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    Some Agronomical Characteristics and Essential Oil Content of Oregano (Origanum onites L.) as Influenced by Planting Densities
    (Taylor & Francis Ltd, 2009) Kizil, Sueleyman; Ipek, Arif; Arslan, Neset; Khawar, Khalid Mahmood
    Oregano (Origanum onites L.) a highly valued medicinal plant, is rich in essential oil. The objective of the experiment was to determine the relative importance of planting densities on yield components and essential oil components of O. onites under semi and rain fed conditions of South East Anatolian Turkey. Plant densities and environmental conditions affected growth components, essential oil percentage and essential oil yield variabilty. The results suggested variation among fresh and dry herb yield, dry leaf yield and essential oil composition in O. onites during two years of experimentation. Totally-twenty-six components were identified in the oregano essential oil by GC-MS. Carvacrol (39.6 - 52.2 %) dominated all components identified in the essential oils. 45 x 20 cm plant density showed economical optimum herbage and oil yield on the non-calcareous and soils of Diyarbakir in the Southeastern Anatolian Turkey.