Yazar "Doran, Ilhan" seçeneğine göre listele

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    Effect of Soil Solarization and Arbuscular Mycorrhizal Fungus (Glomus intraradices) on Yield and Blossom-end Rot of Tomato
    (Friends Science Publ, 2010) Cimen, Ismail; Pirinc, Vedat; Doran, Ilhan; Turgay, Berna
    The study was aimed to investigate the effect of tomato seedlings of Falcon variety (Lycopersicum esculantum L.) inoculated with arbuscular mycorrhizal (AM) fungus Glomus intraradices in solarized and non solarized parcels on yield and blossom end rot (BER) that cause yield loses in tomato growing. The experiment established according to split-plot design with four replicates as main plot of solarization and sub-plot of mycorrhizal in total 16 parcels. The solarized field increased the soil temperature (11,8,7 & 5 degrees C) than non-applied in different soil depth (5, 10, 20 & 30 cm). The contents of N, P, K, Ca, Mg, Mn, Zn and Cu were increased in leaves by solarization. The levels of P, K, Mg, Fe, Mn, Zn and Cu in leaves were higher in plots inoculated with AM than without non AM. The effect of solarization on yield was significant and was three times higher than non solarized control. However, AM had no effect on yield. In this study, the expected yield was not obtained, because of blossom end rot (BER). The effect of neither solarization nor AM was seen on this physiological disorder in tomato. However, high temperature affected these abiotic diseases. During the vegetative season, incidence of BER occurred 100% of the high temperature in July-August, whereas this rate was rapidly decreased and was not observed during the cool periods at the end of growing season. The results of this study show that solarization can be applied and recommended for growing tomato in the region, but the research about factors resulting in BER must be accelerated. (C) 2010 Friends Science Publishers
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    Effects of different previous crops and nitrogen rates on double cropping maize (Zea mays L.)
    (Asian Journal Of Chemistry, 2008) Gul, Ismail; Akinci, Cuma; Doran, Ilhan; Kilic, Hasan; Baytekin, Harun
    The effects of previous crops (wheat, barley, lentil, Hungarian vetch and fallow) and different nitrogen rate (0, 120, 160, 200 and 240 kg N ha(-1)) on grain yield and yield components of maize (Zea mays L.) were evaluated under irrigated conditions in Diyarbakir, Turkey in the 1999-2000, 2000-2001 growing seasons. Maize was grown in summers and wheat, barley, lentil and Hungarian vetch in winters. In-the study, grain yield of maize varied between 6340.3 and 11598.9 kg ha(-1). It was determined that Hungarian vetch was suitable for previous crop and 160 kg ha(-1) N rate is the best nitrogen rate in maize production. According to the interaction of previous crop-nitrogen rate, the highest yield was obtained from the subject grown after lentil and Hungarian vetch with 160 kg N ha(-1). Maize following legumes in rotation did not respond to applications over 160 kg N ha(-1), while barley-maize, wheat-maize increased at all levels of N applied. Fallow-sorghum did not respond to-application over 200 kg N ha(-1).
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    Effects of Different Zinc Application Methods on Agronomic Traits of Durum Wheat in a Semi-Arid Anatolian Environment
    (Asian Journal Of Chemistry, 2009) Doran, Ilhan; Akinci, Cuma; Yildirim, Mehmet; Guel, Ismail; Kaya, Zuelkuef
    This study was carried out to determine the effects of different zinc doses and application methods on grain yield, yield components and plant zinc concentrations of durum wheat (cv. Diyarbakir 81) in Southeastern Anatolia region between 2000 and 2002 years. The treatments were soil, seed and leaf applications of zinc to wheat. The amounts of 0, 1800, 3600 and 5400 g zinc ton(-1) seed(-1) for the seed application, 0.0, 2.3, 4.6 and 6.9 kg zinc ha(-1) for soil application and 0.0, 110, 330 and 550 g zinc ha(-1) for the leaf application were used. The results showed that zinc doses significantly affected all the investigated properties. The highest value for all investigated properties, except protein content, was obtained by the highest zinc doses. Compared to the control, grain yield at third and fourth doses increased 15.0 and 17.4 %, over all application methods, respectively. Yield components, i.e., spike length, spikelet number, grain number per spike and thousand grain weight were increased approximately 10 % upon the addition of third and fourth doses. Application methods significantly affected to grain yield, zinc concentration, protein content of grain and plant height. The highest doses of soil, leaf and seed applications increased grain yield up to 26.9, 12.5 and 12.2 %, respectively. The application of 6.9 kg zinc ha(-1) to soil or 5400 g zinc ton(-1) seed(-1) to seed or 550 g zinc ha(-1) solution to the plants may be more efficient in terms of their economically feasibility and yield increases.
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    Effects of different zinc doses on zinc and protein contents of barley
    (Asian Journal Of Chemistry, 2008) Akinci, Cuma; Doran, Ilhan; Yildirim, Mehmet; Guel, Ismail
    This study aimed to investigate the effects of different zinc doses and application methods on zinc and protein contents and some yield components of barley (cv. Sahin 91) grown under the semi-arid conditions of south-eastern Anatolia. Foliar and soil application and seed dressing methods at varying levels were tested. Teprosyn F-2498 (600 g Zn L-1) was dressed on-seeds with four doses (0, 3, 6, 9 1 ton(-1)). Four doses (0, 10, 20, 30 kg ha(-1)) of ZnSO4 center dot 7H(2)O fertilizer were applied into soil at sowing time and four doses (0.0, 0.1, 0.3 and 0.5 %) (0.0, 110, 330, 550 g Zn ha(-1)) of ZnSO4 center dot 7H(2)O solution were sprayed three times on to the plants at 15 d intervals, starting from stem elongation onward. Seed dressing affected significantly the protein content of grain, spike length and kernel weight in barley. Soil zinc applications affected spike length and protein content of grain. Foliar Zn applications significantly affected grain weight and the Zn content of barley. Second and third doses of all application methods affected the grain yield, yield components and Zn content of the plants significantly. It was determined that the application of 30 kg ZnSO4 center dot 7H(2)O ha(-1) to the soil or the application of 6 L ton(-1) Teprosyn F-2498 to the seed or 0.3 % of ZnSO4 center dot 7H(2)O solution to the plants should be more efficient in terms of their economically feasible aspects and yield increases.
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    Response of Silage Maize (Zea mays L.) to Nitrogen Fertilizer after Different Crops in a Semi Arid Environment
    (Tubitak Scientific & Technological Research Council Turkey, 2008) Gul, Ismail; Yildirim, Mehmet; Akinci, Cuma; Doran, Ilhan; Kilic, Hasan
    The use of legume crops in maize rotation systems may decrease the need for nitrogen (N) fertilization and increase total output. The effect of previous crops (wheat, barley, lentil, Hungarian vetch, and fallow) and different N fertilization rates (0, 120, 160, 200, and 240 kg of N ha(-1)) on yield and N content of silage maize (Zea mays L.) were evaluated under irrigated conditions in Diyarbakir, Turkey, during the 1999-2000, 2000-2001, and 2001-2002 growing seasons. Dry matter yield varied between 10,068.2 and 16,480.4 kg ha(-1). It was determined that Hungarian vetch was a suitable rotation crop, and that 200 kg of N ha(-1) was the best N fertilization rate for silage maize production across years and N rates. Moreover, according to the previous crop x N fertilization rate interaction, the highest dry matter yield was obtained from 240 kg of N ha(-1) after barley. Silage maize following Hungarian vetch in rotation did not respond to the application of more than 120 kg of N ha(-1), in terms of dry matter and N yields, while in barley-maize and wheat-maize these 2 parameters increased in response to every level of N fertilization applied. Additionally, fallow-maize and wheat-maize did not respond to the application of more than 200 kg of N ha(-1). The legumes showed potential as previous crops that could replace fallow and cereals in silage maize production by reducing the amount of N fertilizer used on silage maize without significantly decreasing dry matter and N yield. Nonetheless, the cereals demonstrated high dry matter yields, based on annual production. According to regression analysis, the highest dry matter and N yields were obtained from the application of 198, 254, 211, 80, and 210 kg of N ha(-1) after previous crops of wheat, barley, lentil, Hungarian vetch, and fallow, respectively.