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GÜREL, SERHAT

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GÜREL

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SERHAT

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2015 - 201932020 - 20241
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  • No Thumbnail Available
    Publication
    Mineral nutrient composition of leaves and fruits of black table olive CV. Gemlik
    (Bangladesh Botanical Soc, 2015-12-01) Başar, Haluk; Gürel, Serhat; BAŞAR, HALUK; GÜREL, SERHAT; Ziraat Fakültesi; Toprak Bilimi ve Bitki Besleme Bölümü; AAH-2469-2021; EXS-1398-2022
    A comparative study on mineral composition of the olive trees was made to see the changes in the content of the nutrient elements in the component (leaf and fruit) parts. Differences between the leaf and fruit mean concentrations of the whole elements examined were found to be statistically significant. Potassium and boron concentrations in the fruits were higher than that of the leaves. But, the concentration of the rest of the elements in the fruits was lower than the leaves.
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    Publication
    The determination of soil boron fractions, their relationships to soil properties and the availability to olive ( olea europea l.) trees
    (Taylor & Francis Inc, 2019-04-14) Gürel, Serhat; GÜREL, SERHAT; Başar, Haluk; BAŞAR, HALUK; Keskin, Ece; Dirim, Mehmet Sabri; DİRİM, MEHMET SABRİ; Ziraat Fakültesi; 0000-0003-0019-3482; 0000-0001-9901-6499; AAH-3316-2021; AAH-2469-2021
    This study was conducted to investigate the various boron fractions in olive tree grown soils. The correlations between boron fractions in leaves, fruits and soil properties were examined. For this purpose cv "Gemlik" olive (Olea europaea L.) orchards were visited. Soil samples from 0-30 cm and 30-60 cm deep, the leaf and fruit samples were collected. The greatest proportion of total soil boron is present in residual form (85-88%). It is followed by organically bound B (2.84-4.50%), specifically adsorbed on soil colloid surfaces (0.93-1.31%), oxides (manganese oxyhydroxides, amorphous Fe and Al oxides, crystalline Fe and Al oxides) bound B (7.27-8.31%). The smallest one readily soluble (extracting plant available) boron values were composed of only 0.40-0.50% of total boron ranging. To determine readily soluble boron five different extraction solutions were in the order Hot water > 0.01 M CaCl2 > 1 M NH4OAc > 0.1 M KCl > 0.005 M DTPA. Fruit boron concentration and soil boron fractions showed close correlations than leaf boron concentration.
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    Publication
    Gıda atığı ve şeker fabrikası atığı kompostlarının toprak özellikleri ve mısır (Zea mays l.) bitkisinin gelişimine etkisi
    (Bursa Uludağ Üniversitesi, 2024-02-13) GÜREL, SERHAT; Ziraat Fakültesi; Toprak Bilimi ve Bitki Besleme Bölümü; 0000-0002-2971-8353
    Bu çalışmada, gıda atığı kompostu (GAK), şeker fabrikası atığı kompostu (pancar tohumu atığı kompostu=PAK), çiftlik gübresi (ÇG) ve kimyasal gübrenin (NP) mısır bitkisinin büyümesi üzerindeki etkilerinin değerlendirilmesi amaçlanmıştır. Deneme, tesadüf parselleri deneme desenine göre sera koşullarında yürütülmüştür. Deneme; altı uygulama (gıda atığı kompostu, pancar tohumu atığı kompostu, ½ gıda atığı kompostu + ½ pancar tohumu atığı kompostu, çiftlik gübresi, 20 kg N da-1 için inorganik 20-20-0 NP gübresi ve kontrolü), üç farklı doz (1, 2, 4 ton da-1) ve üç tekrarlı olarak yürütülmüştür. Uygulamalar, kontrole göre tüm verim parametrelerini önemli ölçüde iyileştirmiştir. Toprak özellikleri ve besin elementleri konsantrasyonları 4 ton da-1 oranında kompost uygulaması ile diğer uygulamalara göre daha yüksek olmuştur. Genel olarak, ÇG ve NP uygulamaları bitki gelişim parametelerinde daha iyi sonuçlar vermiştir. ÇG ve NP, bitki besin elementi artışı sağlanması konusunda PAK uygulamaları ve GAK+PAK karışımlarından daha uygun materyaller oldukları belirlenmiştir. Fakat tüm parametreler birlikte değerlendiğildiğinde; GAK uygulaması ile toprak elektriksel iletkenliği (EC) ve topraktaki Na içeriğinin yükselmediği belirlenmiştir. Bununla birlikte bitkilerin hem makro hem de mikro element alımında dengeli bir materyal olduğu belirlenmiştir.
  • No Thumbnail Available
    Publication
    Response of Gemlik olive trees to soil and foliar treatments of iron in combination with zinc and boron
    (Taylor, 2015-07-04) Başar, Haluk; Gürel, Serhat; BAŞAR, HALUK; GÜREL, SERHAT; Ziraat Fakültesi; Toprak Bilimi ve Bitki Besleme Bölümü; AAH-2469-2021; EXS-1398-2022
    This research was conducted to determine the effectiveness of various treatments in correction of single deficiency of iron (Fe) and multiple deficiencies of Fe, zinc (Zn), and boron (B) in an olive cultivar (Gemlik) in the southeastern Marmara region of Turkey. This study was consisted of four field experiments, which included control, soil and foliar applications of Fe alone, and combinations with Zn and B. Soil applications of the compounds were only performed in the first year of the experiments to estimate residual effect of soil applications in the following year. Foliar applications were sprayed onto leaves two and four times at two doses in consecutive years. Soil application of iron sulfate did not increase Fe concentrations in the both leaves and fruits. Foliar applications of iron sulfate considerably elevated leaf total and active Fe concentrations, but the effect of the foliar applications on fruit Fe concentrations was small. Two foliar applications of iron in each season seemed to be appropriate treatment in the all experiments, as well. To maintain sufficient Fe concentrations, especially in the newly developing tissues of olive trees, foliar application of Fe should be conducted at least four times at the lowest dose as performed in the experiments. Foliar applications of double and triple combinations of iron sulfate with zinc sulfate and borax increased significantly B and Zn concentrations in the trees, as well.