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Ağrı bozukluğunda sertralin ve amitriptilin karşılaştırması
(1997) Turan, Metin; Çilli, Ali S.; Aşkın, Rüstem; Kaya, Nazmiye; Kucur, Rahim
Amaç: Bu çalışmada ağrı bozukluğunda sertralin ve amitriptilin tedavilernin etkinliğinin karşılaştırılması amaçlanmıştır. Yöntem: Ağrı yakınmasıyla nöroloji ve fizik tedavi ve rehabilitasyon polikliniklerine başvuran ve organik bozukluk tespit edilmeyip gönderildikleri psikiyatri polikliniğinde DSM-IV tanı kriterlerine göre ağrı bozukluğu tanısı alan 24'ü (%77.4) kadın, 7'si (%22.6) erkek, toplam 31 hasta incelendi. Hastalar rasgele iki tedavi grubuna ayrılarak, 8 hafta süreyle 17 hastaya amitriptilin, 14 hastaya sertralin verildi. Hastalarda ağrı şiddetini ölçmek için 0, 2, 4, 6 ve 8. haftalarda Görsel Benzeştirme Ölçeği uygulandı. Verilerin istatistiksel değerlendirmesi Friedman nonparametrik varyans analizi, Wilcoxon ve Mann-Whitney U testi ile yapıldı. Bulgular: Sertralin ve amitriptilin gruplarında 2, 4, 6 ve 8. haftalardaki Görsel Benzeştirme Ölçeği değerlerinde tedavi süresinde anlamlı düşme bulunurken gruplar arasında fark bulunmadı. Sonuç: Ağrı bozukluğu tedavisinde sertralin ve amitriptilin etkinliğinde anlamlı fark bulunmamaktadır.
Alkol Bağımlılığında Ruhsal Belirtiler
(1999) Turan, Metin; Aşkın, Rüstem
Amaç: Bu çalışmada alkol bağımlılığına epidemiyolojik ve ruhsal belirtiler açısından genel bir bakış amaçlandı. Yöntem: Çalışma Konya-Seydişehir Alüminyum İşletme Müdürlüğü bünyesinde çalışan ve rastgele örneklemle seçilen 1670 denek üzerinde gerçekleştirildi. Veri toplamak için kişisel bilgi formu, Michigan Alkol Tarama Testi (MATT), Belirti Tarama Listesi (SCL-90-R) kullanıldı. Bulgular: Çalışmada deneklerin % 26.1'inin (436 kişi) alkol kullandığı, MATT puanlarına göre % 5.5'inin (91 kişi) alkol bağımlısı, % 8.4'ünün (139 kişi) alkol kötüye kullanıcısı, % 12.3'ünün (206 kişi) sorunsuz içici olduğu saptandı. Depresyon, anksiyete, fobik anksiyete, öfke, paranoid düşünce, psikotik ve kişiler arası duyarlılık belirtilerinin alkol bağımlılarında diğer içicilerden ve alkol kullanmayanlardan daha fazla olduğu bulundu. Sonuç: Bulgularımız alkol bağımlılığının ruhsal bir problem olduğunu pekiştirmektedir.
Assessment of resistance of wheat genotypes (T. aestivum and T. durum) to copper toxicity
(WFL PUBL, 2013) Karaman, M. Rustu; Tusat, Ekrem; Er, Fatih; Turan, Metin; Dizman, Mumin
Copper (Cu) availability to plants depends on a large number of factors and their interactive relationships. Especially, localized excess soil Cu is often a great risk for plant growth on the agricultural lands. Development of resistant varieties to Cu toxicity is a high priority on these regions, where the soils have high levels of Cu. Thus, this study aimed to assess the resistance of wheat genotypes to Cu toxicity using the agronomic and physiologic parameters. For this aim, a pot experiment, based on a completely randomized design with three replications, was conducted using the soil of calcareous usthochrepts. In the study, twenty different wheat genotypes of T. aestivum and T. durum were used. Copper fertilizer at the levels of 0 (-Cu) and 20 mg Cu kg(-1) (+Cu) as CuSO4 center dot 5H(2)O was applied to the pots. After harvest, plant dry matter yield was recorded, and total Cu concentrations in tops of wheat plants were determined. The results indicated the existence of a large genotypic variation among wheat genotypes to their physiologic and agronomic susceptibility to Cu toxicity. Resistance of bread wheat cultivars of T. aestivum to Cu toxicity were higher than that of wheat cultivars of T. durum under the Cu toxicity condition. Thus, evaluation of assessment of new wheat cultivars to Cu toxicity could also be used in breeding programs in order to develop more Cu-tolerant cultivars.
Biochemical Effects of Drought Stress in Some Strawberry Cultivars
(Selçuk Üniversitesi, 2022) Ali, Mostafa Fraidoon Faaek; Pırlak, Lütfi; Turan, Metin
This research was 2016-2017 years of the Selcuk University Faculty of Agriculture Department of Horticulture Research and practice was carried out in the greenhouse. Study the Yalova Atatürk Central Horticultural Research Institute, Ata-77, Bolverim-77, Doruk-77, Dorukhan-77, Eren-77, Erenoğlu-77, and Hilal-77 strawberry varieties. After the planted strawberry seedlings reached the 5- 6 leaf stage, after irrigation at field capacity, drought application was made until the plants lost their leaf turgor. After implementation of the varieties of drought with healing and drought period of watering again losses to determine. In strawberry cultivars, significant decreases occurred in the amount of protein with the application of drought. In the recovery period after the drought, the protein amounts increased again. Drought treatment significantly increased proline content in all cultivars compared to control. Catalase enzyme activity in all strawberry cultivars increased significantly as a result of drought application in both years. There was a slight decrease in the recovery period. In both years of the study, drought application increased the peroxidase enzyme activity in all strawberry cultivars compared to the control, and a slight decrease occurred in the recovery period compared to the drought application. Drought application in cultivars increased the superoxide dismutase enzyme activity a little compared to the control, while the activity decreased to the control level during the recovery period.
Bitki büyümesini artıran rizobakteri (BBAR) uygulamalarının kireçli toprak şartlarında yetiştirilen deveci armut çeşidinin bitki gelişimi üzerine etkileri
(2018) Arıkan, Şeyma; İpek, Muzaffer; Eşitken, Ahmet; Pırlak, Lütfi; Turan, Metin; Dönmez, Mesude Figen
Bu çalışma 2012-2015 yılları arasında Selçuk üniversitesi Ziraat Fakültesi Bahçe Bitkileri Bölümü araştırma veuygulama arazisinde yürütülmüştür. Araştırmada 6 farklı bakteri ırkının (Alcaligenes 637Ca, Agrobacterium A18,Staphylococcus MFDCa1, MFDCa2, Bacillus M3 ve Pantoea FF1) OHF333 ve BA 29 anacı üzerine aşılı Deveci armutçeşidinde bitki gelişimi üzerine etkisi araştırılmıştır. Bakteri ırklarının yaprak alanı üzerine etkisi incelendiğinde en genişyaprak alanı OHF333 anacı üzerinde 16.1cm2 ile FF1 bakteri ırkından elde edilirken, BA 29 anacı üzerinde ise 15.8cm2637Ca bakteri ırkından elde edilmiştir. Bakterilerin anaç çapı üzerine etkisi ele alındığında en iyi sonuçlar OHF333anacında MFDCa1 bakteri ırkından (30.1mm), BA29 anacında ise 637Ca ve A18 bakteri ırklarından (28.3mm ve28.1mm) elde edilmiştir. Bakteri uygulamalarının sürgün uzunluğuna etkisi her iki anaçta da oldukça farklılık yaratmışolup OHF333 anacında en iyi sonuç 6.68cm ve 5.95cm ile MFDCa1 ile 637Ca olurken, BA29 anacında ise 637Ca(26.7cm) en iyi sonuca sahip olmuştur. Yapraklardaki klorofil miktarı bakımından OHF333 anacında en yüksek değerMFDCa2 bakteri ırkında (48.8 SPAD değeri) ölçülürken, BA29 anacında ise MFDCa2 (45.7 SPAD değeri) ile M3 (43.7SPAD değeri) bakteri ırklarından ölçülmüştür.
The effects of autumn foliar applications of boron and urea on flower quality, yield, boron and nitrogen reserves of apricot
(TAYLOR & FRANCIS INC, 2017) Karlidag, Huseyin; Esitken, Ahmet; Turan, Metin; Atay, Salih
In order to determine the effects of autumn foliar application of boron (B) and/or urea on abortive flower ratio, yield, fruit weight, total soluble solid (TSS) and B and nitrogen (N) contents of reserves of non-irrigated apricot trees, field experiments were carried out between 2009 and 2012 in Malatya province of Turkey. The application of B and/or urea stimulated perfect flower development, B and N accumulation and resulted in significant yield increase. Boron, urea and B+urea applications increased fruit yield by 33.1%, 26.1% and 26.9%, decreased abortive flower ratio by 34.6%, 27.1% and 35.9% compared to the control, respectively. In addition, B and N contents of wood, bark and buds of apricot trees were significantly increased by B and/or urea treatments. It was also observed that B and N contents were the highest in bud compared to wood and bark in all treatments. The highest B (16.53 ppm) and N (1.56%) contents were determined to buds in B+urea treatment. The results of this study suggest that autumn foliar B and/or urea application have the potential to decrease abortive flower ratio and increase the yield and B and N contents of reserves of apricot trees under non-irrigated conditions.
Effects of Bacteria and IBA on the Rooting of Bitter Orange (Citrus Aurantium L.) and Trifoliate Orange (Poncirus Trifoliata Raf.) Cuttings
(Selçuk Üniversitesi, 2019) Çınar, Mustafa; Pırlak, Lütfi; Kafa, Güçer; Turan, Metin
In this study, the effects of Agrobacterium rubi A-18 and Bacillus OSU-142 bacterial strains alone and in combination with 1000, 2000, 4000 ppm IBA on rooting of bitter orange and trifoliate orange citrus rootstock in softwood, semihardwood and hardwood cuttings were investigated. In the case of IBA solution, Agrobacterium rubi A-18 and Bacillus OSU-142 were prepared in solution at a concentration of 1x109 bacteria / ml and applied to steel. Application is made in the mist propagation system, in the perlite are planted in the environment. Steels kept in the fogging environment for 3 months were removed at the end of this period and rooting rates (%), callus formation rates (%) and survival rates (%) were determined. According to the results of the research, the rooting rates of the steels taken at different periods were found to be low. The highest rooting rates of bitter orange softwood cuttings were 2000 ppm IBA + OSU-142 (6.67%), semi-hardwood cuttings OSU-142 (20.00%), and 4000 ppm IBA + OSU-142 (20.00%) in hardwood cuttings. It has been not rooting in trifoliate orange softwood cuttings, the highest rooting was in the case of semi-hardwood cuttings with 4000 ppm IBA + OSU-142 (26.67%), in hardwood cuttings 1000 ppm IBA + OSU-142, 2000 ppm IBA + OSU-142, 4000 ppm IBA + OSU-142, 1000 ppm IBA + A-18, 2000 ppm IBA + A-18 and 4000 ppm IBA + A-18 (20.00%). According to the cuttings pick-up period, the rooting rates of bitter orange are not different between the periods, in the trifoliate orange the hardwood cuttings were found to be higher. As a result, it can be said that plant growth promoting bacteria and IBA applications have no effect on rooting in the softwood, semi-hardwood and hardwood cuttings of the bitter orange and trifoliate orange citrus rootstocks, it can be said that studies on rooting in these rootstocks can be useful in different bacterial breeds.
Effects of Bacteria and IBA on the Rooting of Bitter Orange (Citrus aurantium L.) and Trifoliate Orange (Poncirus trifoliata Raf.) Cuttings
(Selçuk Üniversitesi, 2019) Çınar, Mustafa; Pırlak, Lütfi; Kafa, Güçer; Turan, Metin
In this study, the effects of Agrobacterium rubi A-18 and Bacillus OSU-142 bacterial strains alone and in combination with 1000, 2000, 4000 ppm IBA on rooting of bitter orange and trifoliate orange citrus rootstock in softwood, semihardwood and hardwood cuttings were investigated. In the case of IBA solution, Agrobacterium rubi A-18 and Bacillus OSU-142 were prepared in solution at a concentration of 1x109 bacteria / ml and applied to steel. Application is made in the mist propagation system, in the perlite are planted in the environment. Steels kept in the fogging environment for 3 months were removed at the end of this period and rooting rates (%), callus formation rates (%) and survival rates (%) were determined. According to the results of the research, the rooting rates of the steels taken at different periods were found to be low. The highest rooting rates of bitter orange softwood cuttings were 2000 ppm IBA + OSU-142 (6.67%), semi-hardwood cuttings OSU-142 (20.00%), and 4000 ppm IBA + OSU-142 (20.00%) in hardwood cuttings. It has been not rooting in trifoliate orange softwood cuttings, the highest rooting was in the case of semi-hardwood cuttings with 4000 ppm IBA + OSU-142 (26.67%), in hardwood cuttings 1000 ppm IBA + OSU-142, 2000 ppm IBA + OSU-142, 4000 ppm IBA + OSU-142, 1000 ppm IBA + A-18, 2000 ppm IBA + A-18 and 4000 ppm IBA + A-18 (20.00%). According to the cuttings pick-up period, the rooting rates of bitter orange are not different between the periods, in the trifoliate orange the hardwood cuttings were found to be higher. As a result, it can be said that plant growth promoting bacteria and IBA applications have no effect on rooting in the softwood, semi-hardwood and hardwood cuttings of the bitter orange and trifoliate orange citrus rootstocks, it can be said that studies on rooting in these rootstocks can be useful in different bacterial breeds.
Effects of Floral and Foliar Application of Plant Growth Promoting Rhizobacteria (PGPR) on Yield, Growth and Nutrition of Sweet Cherry
(Elsevier, 2006) Esitken, Ahmet; Pırlak, Lütfi; Turan, Metin; Şahin, Fikrettin
During 2003 and 2005, plant growth promoting effects of Pseudomonas BA-8 and Bacillus OSU- 142 were tested alone or combinations on sweet cherry (Prunus avium L.) cv. 0900 Ziraat in terms of yield, growth, nutrient composition of leaves in the province of Konya, Turkey. The presence of Pseudomonas BA-8, Bacillus OSU-142 and BA-8 + OSU-142 stimulated plant growth and resulted in significant yield increase. Floral and foliar applications of BA-8, OSU-142 and BA-8 + OSU-142 in sweet cherry significantly increased yield per trunk cross-sectional area (16.3, 10.9 and 21.7%), fruit weight (4.15, 5.37 and 1.24%) and shoot length (11.3, 11.8 and 29.6%), respectively, compared with the control. In addition, N, P and K contents of sweet cherry leaves with BA-8, OSU-142 and BA-8 + OSU-142 treatments, Fe and Zn contents of leaves with BA-8 + OSU- 142 treatment and Mn content of the leaves of sweet cherry with BA-8 and OSU-142 applications significantly increased. Nitrogen, P and K contents in leaves were determined to be increased from 2.00, 0.17 and 0.43% in the control to 2.19, 0.20 and 0.54% by BA-8 application, to 2.32, 0.24 and 0.54% by OSU-142 application and to 2.43, 0.22 and 0.51% by BA-8 + OSU-142 application, respectively. Co-inoculation of BA-8 + OSU-142 increased Fe and Zn contents of leaves up to 50.5 and 35.5% compared with the control, respectively. Manganese content of leaves significantly also increased by BA-8 (26.6%) and OSU-142 (27.0%) applications compared with the control. The results of the present study suggested that Pseudomonas BA-8 and Bacillus OSU-142 alone or in combination have a great potential to increase the yield, growth and nutrition of sweet cherry plant.
Floral and foliar application of plant growth promoting rhizobacteria (PGPR) to apples increases yield, growth, and nutrient element contents of leaves
(TAYLOR & FRANCIS INC, 2007) Pirlak, Lutfi; Turan, Metin; Sahin, Fikrettin; Esitken, Ahmet
During 2003 and 2005, plant growth promoting effects of Pseudomonas BA-8 and Bacillus OSU-142 were tested alone or in combination on apple (Malus domestica L.) cvs. 'Starkrimson' and 'Granny Smith' in terms of yield, growth, and nutrient composition of leaves in the province of Karaman, Turkey. The presence of Pseudomonas BA-8, Bacillus OSU-142 and BA-8+OSU-142 stimulated plant growth and resulted in significant yield increases in both cultivars. Floral and foliar applications of PGPR strains significantly increased yield per trunk cross-section area (13.3-118.5%), fruit weight (4.2-7.5%), shoot length (20.8-30.1%), and shoot diameter (9.0-19.8%) in 'Starkrimson' and yield per Trunk Cross Sectional Area (TCSA; 14.9%) and fruit weight (6.5-8.7%) in 'Granny Smith' compared with the control. In addition, all nutrient elements' contents (N, P, K, Mg, Ca, Fe, Mn, and Zn) investigated in both cultivars, except Mg in 'Starkrimson', were significantly affected by bacterial applications when compared with the control. The highest N content was obtained from BA-8+OSU-142 application in cvs. 'Starkrimson' (2.29%) and 'Granny Smith'. (2.33%). Phosphorus contents of leaves of 'Starkrimson' and 'Granny Smith' increased from 0.21 and 0.20% in the control to 0.26 and 0.24% by BA-8 application, to 0.28 and 0.24% by OSU-142 application and to 0.25 and 0.26% by BA-9+ OSU-142 application, respectively. BA-8 application in 'Starkrimson' (1.90%) and OSU-142 applications.in 'Granny Smith' (2.90%) significantly increased Ca content of leaves. The results of this study suggest that Pseudomonas BA-8 and Bacillus OSU-142 alone or in combination have the potential to increase the yield, growth, and nutrition of apple trees.
Nokturnal bruksizm ile ruhsal belirti arası ilişki
(1999) Mutlu, M. Necip; Herken, Hasan; Küçükkolbaşı, Hasan; Turan, Metin; Öztürk, Adnan
Amaç: Nokturnal bruksizm dişlerin gıcırdatılması ve sıkılması ile karakterize, toplumda oldukça yaygın görülebilen bir rahatsızlıktır. Etyolojisinde dişsel, psikolojik ve sistemik faktörler etkili olmakla birlikte, emosyonel durum en önemli nedendir. Bu çalışmanın amacı emosyonel durum ile burksizm arasındaki ilişkiyi göstermektir. Materyal ve metod: Çalışma bruksizm yakınması olan (50) ve olmayan (50) toplam 100 öğrenci üzerinde yapılmıştır. Öğrenciler; Hacettepe kişilik envanteri (HKE), ruhsal belirti tarama listesi (SCL-90-R), durumluluk ve süreklik kaygı envanteri (STAİ I-II), Beck depresyon ölçeği (BDÖ), Rosenberg benlik saygısı ölçeği (RSÖ) ve yaşam doyum ölçeği testleri kullanılarak psikometrik açıdan değerlendirilmiştir. Bulgular: Testlerin psikometrik değerlendirmesinde bruksizm yakınması olanlar ile, yakınması olmayanlar arasında Beck depresyon ölçeği, STAI-I, STAI-II, Rosenberg benlik saygısı ölçeğinde anlamlı bir fark bulunmuştur. Ayrıca bruksizm yakınması olanlar ve olmayanların kişilik özellikleri arasında kendini gerçekleştirme, duygusal kararlılık, nörotik eğilim, antisosyal eğilimler ve sosyal uyum değerlendirmeleri arasında anlamlı bir fark bulunmuştur. Sonuç: Nokturnal bruksizm yakınması olan ve kliniğe başvuran hastalarda ruhsal durumun dikkatle ele alınmasının, tedavide önemli bir faktör olduğu görüldü.
Phosphorus and Humic Acid Application Alleviate Salinity Stress of Pepper Seedling
(Academic Journals, 2010) Çimrin, K. Mesut; Türkmen, Önder; Turan, Metin; Tuncer, Burcu
Humic acid is a commercial product that contains many elements which improve the soil fertility and increase the availability of nutrient elements. It consequently affects plant growth and yield and ameliorates the deleterious effects of salt stress. The objective of the study was to determine the effect of humic acids and phosphorus on growth and nutrient content of pepper seedlings (cv. Demre) grown under moderate salt stress in growth chamber conditions. Applications of different levels of phosphorus [0 (P(0)), 50 (P(1)), 100 (P(2)) and 150 (P(3)) mg kg(-1)] and humic acid [0 (HA(0)), 750 (HA(1)) and 1500 (HA(2)) mg kg(-1)] to growing media containing moderate salt dose (8 mM NaCl treatment) were studied. The study was replicated four times with 20 plants in each replicate. Humic acid (HA) and phosphorus applications increased the growth and growth parameter of plants. In company, effects of HA and P application was more effective on growth and growth parameter than each separate effect. The optimum total yield was obtained from 69 mg kg(-1) P application with HA2 doses according to regression analysis. Humic acid application significantly increased N, P, K, Ca, Mg, S, Mn and Cu contents of shoot of pepper seedling. Also, N, P, K, Ca, S, Fe, Mn, Zn and Cu contents of root were increased with humic acid application. Na contents of both shoot and root of pepper decreased with increased humic acid doses. It can be concluded that high humic acid doses has positive effects on salt tolerance based on the plant growth parameters and nutrient contents. The present study suggests that HA treatments can ameliorate the deleterious effects of salt stress on pepper plants and HA could offer an economical and simple application to reduce problems of pepper production in moderately saline soil.
Plant growth promoting rhizobacteria enhanced leaf organic acids, FC-R activity and Fe nutrition of apple under lime soil conditions
(SPRINGER HEIDELBERG, 2018) Aras, Servet; Arikan, Seyma; Ipek, Muzaffer; Esitken, Ahmet; Pirlak, Lutfi; Donmez, Mesude Figen; Turan, Metin
Iron chlorosis in the calcareous soils is one most important stress factors worldwide that limits photosynthesis and decreases fruit yield and quality. Certain soil rhizobacteria produce organic compounds such as plant acids and they may reduce the soil rhizosphere pH and affect ferric chelate reductase (FC-R) activity in root. However, there is no knowledge regarding changes in organic acids content and FC-R activities of leaf due to rhizobacterial root inoculation. Therefore, the efficiency of six plant growth promoting rhizobacteria (PGPR) were tested on apple cv. Braeburn on M9 and MM106 rootstocks. The results of the experiment showed leaf organic acid contents, iron quantity of soil, root and leaf and root and leaf FC-R activity were significantly affected via rhizobacteria applications in apple plants. In MM106 and M9, there was a remarkable increase in Fe in M3 inoculated soil by 95 and 89%, respectively, compared to control. Average increases in citric, malic, malonic, butyric and lactic acid in the leaf were obtained from rhizobacterial root inoculations of 25.1, 21.8, 29.6, 18.0 and 18.2% in Braeburn/MM106, respectively. In Braeburn/M9, MFDCa1 application increased all organic acid concentrations compared to the control. MFDCa2 treatment caused the maximum leaf FC-R activity in Braeburn on M9 and MM106 (60.9 and 50.3 nmol Fe+2 g(-1) FW h(-1), respectively) while the least values were determined in the control (33.5 and 29.9 nmol Fe+2 g(-1) FW h(-1), respectively). This study showed the bacterial strains tested in our study may be used as a biofertilizer instead of Fe fertilizers.
PLANT GROWTH-PROMOTING RHIZOBACTERIA (PGPR) INCREASE YIELD, GROWTH AND NUTRITION OF STRAWBERRY UNDER HIGH-CALCAREOUS SOIL CONDITIONS
(TAYLOR & FRANCIS INC, 2014) Ipek, Muzaffer; Pirlak, Lutfi; Esitken, Ahmet; Donmez, M. Figen; Turan, Metin; Sahin, Fikrettin
Plant growth promoting effects of Alcaligenes 637Ca, Staphylococcus MFDCa-1, MFDCa-2, Agrobacterium A18, Pantoea FF1 and Bacillus M3 were tested on strawberry cv. Aromas' based on yield, number, and weight of fruit, leaf area, vitamin C, total soluble solids (TSS), acidity and ionic composition of leaves under calcareous soil conditions. The results demonstrated that all of bacterial treatments significantly affected all parameters tested. The best result was obtained from 637Ca treatment, which significantly increased fruit yield, number and weight about 47.5, 34.7, and 9.4%, respectively, compared to control. Except for magnesium (Mg) and zinc (Zn) in the leaf, the concentrations of all plant tissue nutrients [nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), iron (Fe), copper (Cu), manganese (Mn), boron (B)] were significantly increased by bacterial treatments tested. The data in the present study showed that all bacterial treatments including Alcaligenes 637Ca, Staphylococcus MFDCa-1, MFDCa-2, Agrobacterium A18, Pantoea FF1, and Bacillus M3 to strawberry plants can ameliorative the deleterious effect of high lime on fruit yield, growth and nutrition. These results suggested that plant growth-promoting Rhizobacteria (PGPR) treatments could be offer an economic and simple means to increased plant resistance for high calcareous soil conditions.
Rasyonel kenarlı ve alanlı kirişler çokgenler üzerine bir araştırma
(Selçuk Üniversitesi Fen Bilimleri Enstitüsü, 2008-09-19) Turan, Metin; Cihangir, Ahmet
Rasyonel kenarlı Heron üçgenleri notasyonundan hareketle bir kirişler dörtgeninin alanı için Brahmagupta'nın alan formülü kullanılmıştır. Kirişler beşgenleri ve altıgenlerinin alanı için de Robbins'in formülleri kullanılarak, rasyonel alanlı kirişler n-genlerine genellemeler yapılmıştır. Altıdan daha fazla kenarlı rasyonel alanlı n-genler için bir yaklaşım metodu araştırılmıştır. n nin çift olması durumunda Eulerian olmayan rasyonel alanlı kirişler n- genlerinin üretiminin bir metodunu verilmiştir. Son olarak; rasyonel alanlı bütün kirişler n- genlerini konjektür olarak sınıflandırıyoruz.
Root plant growth promoting rhizobacteria inoculations increase ferric chelate reductase (FC-R) activity and Fe nutrition in pear under calcareous soil conditions
(ELSEVIER, 2017) Ipek, Muzaffer; Aras, Servet; Arikan, Seyma; Esitken, Ahmet; Pirlak, Lutfi; Donmez, Mesude Figen; Turan, Metin
Iron deficiency occurring in calcareous soil is a problem in various plants. It is well known that some soil bacteria can release organic acids that can decrease the pH of the soil rhizosphere. However, there have been no attempts to study the effects of plant growth promoting rhizobacteria (PGPR), including organic acid releasing bacteria, on the organic acid contents of the leaf and FC-R activity in the roots and leaves under calcareous soil conditions. Therefore, pear plants were inoculated with 6 bacterial strains with the aim of acquiring iron under calcareous conditions. Uniform 1-year-old pear cv. Deveci sapling grafted on BA-29 and OHF-333 rootstocks were planted in plastic pots containing 10 L of loamy soil at 29.6% CaCO3. All bacteria were applied to the roots as an inoculation before planting. The root and leaf Fe content, FC-R activity, leaf organic acids, and soil Fe content were compared in the Alcaligenes 637Ca, Agrobacterium A18, Staphylococcus MFDCa1, MFDCa2, Bacillus M3 and Pantoea FF1 strains. The study showed that the leaf organic acid content and the Fe content in the soil, root and leaf were significantly affected by the bacterial treatments in pear plants. It was determined that the total and active Fe in the leaf was higher in OHF-333 compared to BA-29 by 7% and 14%, respectively. Furthermore, the leaf FC-R activity of Deveci on OHF-333 was 8% higher than that on BA-29. In the Deveci/BA-29 plants, the 637Ca treatment had the highest root FC-R activity value (107 nmol Fe+2 gr(-1) FW h(-2)). The highest leaf FC-R activity value was obtained from the MFDCa1, MFDCa2 and FF1 treatments (58.4, 56.3 and 55.7 nmol Fe+2 gr(-1) FWh(-2), respectively). The bacterial strains used in the present study have an important potential to be used as a biofertilizer to replace the use of iron fertilizers. (C) 2017 Elsevier B.V. All rights reserved.

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