Eastern Anatolia Agricultural Research Institute

Erzurum, Turkey

Eastern Anatolia Agricultural Research Institute

Erzurum, Turkey
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Tozlu E.,Eastern Anatolia Agricultural Research Institute | Demirci E.,Atatrk University
Australasian Plant Disease Notes | Year: 2010

Powdery mildew symptoms were observed on the leaves of horse chestnut (Aesculus hippocastanum) which is common in urban areas of Ordu province, Turkey. The pathogen was identified as Erysiphe flexuosa based on morphological characters. This is the first report of E. flexuosa on horse chestnut from Turkey. © Australasian Plant Pathology ociety 2010.


Sezgin A.,The Ministry of Agricultural and Rural Affairs | Sezgin E.,Eastern Anatolia Agricultural Research Institute
Journal of Animal and Veterinary Advances | Year: 2011

A survey was conducted in 8 counties of Erzurum city with 165 farmers to determine the factors effective on hygiene and health management in stock breeding enterprises. The LIMPED software package was used to analyze the survey data using Logit Model. Four factors which are needed to consider for improving the hygiene and health conditions in stock breeding enterprises were used as dependent variables. These factors were as follows: routine health checks of the animals in the farm; cleansing hands and machine parts before milking; elaborating in the care and hygiene conditions of the animals in the farm and daily cleaning of the barn. It was concluded that age, education level and income of the farmer, regional differences, participation to agricultural extension training activities following agriculture-related broadcasts from mass media and the total number of culture race animals owned by the farm were effective on considering the hygiene and health management in stock breeding enterprises. In this context, it is necessary that the number of culture race animals should be increased; farmers should be trained on hygiene and health issues periodically and regularly with the help of mass media means and that farmers should be encouraged to make market based production so that their income could be increased. © Medwell Journals, 2011.


Tozlu E.,Eastern Anatolia Agricultural Research Institute | Cakir A.,University of Science and Arts of Iran | Kordali S.,Atatürk University | Tozlu G.,Atatürk University | And 2 more authors.
Scientia Horticulturae | Year: 2011

The essential oils of aerial parts of Achillea gypsicola Hub.-Mor., Hypericum scabrum L., Satureja hortensis L., and Origanum acutidens (Hand.-Mazz.) Letswaart were analyzed in this study by GC and GC-MS and their oils were tested for toxicity against broadbean weevil (Bruchus dentipes). A. gypsicola oil contained camphor (40.17%), 1,8-cineole (22.01%), piperitone (11.29%), borneol (9.50%) and α-terpineol (1.56%) as major components. A total of 74 components were identified by GC-MS in H. scabrum oil, including α-pinene (9.26%), terpinen-4-ol (5.12%), camphor (5.94%), δ-cadinene (4.52%), pulegone (4.45%), γ-muurolene (4.12%), pinocarvone (3.97%) and β-caryophyllene (3.42%) as predominant components. The essential oils of O. acutidens and S. hortensis were characterized by high contents of carvacrol (86.99% and 55.74%), γ-terpinene (0.71% and 20.94%), p-cymene (1.95% and 12.30%), α-terpinene (0.13% and 2.04%) and β-caryophyllene (1.30% and 1.08%). All of the essential oils were toxic to adults of B. dentipes and insect mortality increased with increasing concentration of each oil. The oils (20 μl dose) brought about 100% mortality in 36. h. Although desirable insecticidal activities against the pest were achieved with the oils from all four plant species, S. hortensis and O. acutidens oils were more effective, particularly after 6. h of treatment. The current results concluded that the essential oils, in particular O. acutidens and S. hortensis oils, may be used as potential botanical insecticides against B. dentipes. © 2011 Elsevier B.V.


Kordali S.,Atatürk University | Tazegul A.,Eastern Anatolia Agricultural Research Institute | Cakir A.,Kilis Aralik University
Records of Natural Products | Year: 2015

Essential oil isolated from the aerial parts of Nepeta meyeri Benth. by hydrodistilation was analysed by GC and GC-MS methods. A total 18 components were identified in the oil representing 100.0% of the oil. Main components were 4aα,7α,7aβ-nepetalactone (80.3%), 4aα,7α,7aβ-nepetalactone (10.3%), trans-pulegol (3.1%), 1, 8-cineole (3.0%) and β-bourbonene (2.0%). In addition, n-hexane extract of N. meyeri was analysed by using GC and GC-MS methods and 18 components were identified. Likewise, nepetalactones, 4aα,7α,7aβ7a-nepetalactone (83.7%), 4aα,7α,7aβ-nepetalactone (3.6%), 1, 8-cineole (1.9%) and α-terpinene (1.5%) were the predominat compounds in the hexane extract. Three concentrations (0.5, 1.0 and 2.0 mg/mL) of the essential oil and n-hexane, chloroform, acetone and methanol extracts isolated from the aerial partsand roots were tested for the herbicidal effects on the germination of the seeds of four weed species including Amaranthus retroflexus L., Chenopodium album L., Cirsium arvense L. and Sinapsis arvensis L. The essential oil of N. meyeri completely inhibited the germination of all weed seeds whereas the extracts showed various inhibition effects on the germination of the weed species. Herbicidal effect was increased with the increasing application concentrations of the extracts. In general, the acetone extract was found to be more effective as compared to the other extracts. All extracts also exhibited various inhibition effects on the seedling growths of the weed species. All extracts also tested for their phytotoxic effects on the weeds at greenhouse condition and the results showed that the oil and extracts caused mortality with 22.00-66.00% 48h after the treatments. These findings suggest that the essential oil and the extracts of N. meyeri have potentials for use as herbicides against those weed species. © 2015 ACG Publications. All rights reserved.


Homer A.,Central Research Institute for Field Crops | Sahin M.,Central Research Institute for Field Crops | Kucukozdemir U.,Eastern Anatolia Agricultural Research Institute
Czech Journal of Genetics and Plant Breeding | Year: 2016

Winter pea can be grown in rotation with cereal crops in Central Anatolia, Turkey. However, winterkill can occur during harsh winters. The objective of this study was to screen pea accessions for winter survival, and identify genotypes with differential winter hardiness for future crop development. The plant material consisted of 58 accessions including local landraces, elite winter cultivars, selected lines and several checks. Twenty-five of them were evaluated under both field and laboratory conditions. The rest of the genotypes were tested under field conditions. Field trials were planted in Haymana, Ankara, and in Ulaş, Sivas, Turkey during the autumn of 2014. Winter hardiness was evaluated as the percentage of surviving plants. Differential survival of genotypes was observed at both locations. On average, the survival rate was lower in Ulaş (54.8%) than in Haymana (67.8%), and ranged between 1.5 and 100%. Turkish landraces TR 79404 (88.6%), TR 79407 (88.5%) and TR 80194 (84.8%) had survival percentages comparable with the three winter-hardy checks (Turkish cvs. Taşkent (90.0%) and Özkaynak (85.0%), US cv. Melrose (94.7%)). Twelve single plants were selected from these populations for future cultivar development. The European and US accessions, included in the trials for their previously reported winter hardiness, showed high levels of winter hardiness, and could be used in breeding programs. In the laboratory, no plants survived at –12°C and –16°C three weeks following the freezing test. Screening at –8°C generated differential survival among winter genotypes. Significant positive correlations (r = 0.67–0.87, P < 0.001) were found between the test environments for the percent survival. © 2016, Czech Academy of Agricultural Sciences. All rights reserved.


Biberoglu O.,Eastern Anatolia Agricultural Research Institute | Ceylan Z.G.,Atatürk University
Journal of Animal and Veterinary Advances | Year: 2013

The aim of the present study was to isolate and identify yeasts from yoghurts produced using traditional methods in the North East Anatolian Region of Turkey. In addition, samples were analysed in terms of certain microbiological characteristics. A total of 96 yeast isolates were obtained from the samples. Distribution of the isolates according to species was 50.00% Candida kefyr followed by 23.95% Saccharomyces cerevisae, 10.40% Candida spkaerica, 7.29% Candida sake, 4.16% Candida lypolitica, 2.08% Candida inconspicua, 1.04% Candida krusei and 1.04% Candida famata. Coliform bacteria and Enterobacteriaceae counts of the samples were <1.00-3.13 and <1.00-3.22 log cfu g~', respectively. As mean, total aerobic mesophilic bacteria, Streptococcus thermophilus, Lactobacillus bulgaricus and yeast and mold counts were 7.09±0.92, 5.52±1.08, 7.86±0.94 and6.32±0.87 log cfug 1, respectively. © Medwell Journals, 2013.


Tozlu E.,Eastern Anatolia Agricultural Research Institute | Dadasoglu F.,Agri Ibrahim Cecen University | Kotan R.,Atatürk University | Tozlu G.,Atatürk University
Fresenius Environmental Bulletin | Year: 2011

In this study, a total of 10 bacterial strains (2 Bacillus thuringiensis subsp. kenyae, 2 Bacillus cereus, 1 Bacillus thuringiensis subsp. kurstaki, 1 Bacillus atrophaeus, 1 Bacillus pumilus, 1 Bacillus globisporus, 1 Brevibacillus brevis and 1 Alcaligenes denitrificans subsp. xylosoxydans), isolated from different insect species in the Eastern Anatolia region of Turkey, were identified on the basis of fatty acid methyl ester analysis and carbon source utilization profiles by using Microbial Identification System (MIS) and/or Biolog MicroPlate Systems (BIOLOG). Their insecticidal effects were tested on adults of Bruchus dentipes Baudi in vitro on Petri dishes. Seven days after the applications, all of the tested strains showed more or less insecticidal activity against this pest. The highest activity was obtained from Bacillus thuringiensis subsp. kenyae strain FDP8 causing 76.6% mortality, and its activity was not statistically different from that of the positive control (Kingbo). The mortality rates of the other bacterial applications were lower than that of the positive control, but not that of the negative control. In conclusion, Bacillus thuringiensis subsp. kenyae strain FDP8 is a good candidate for use as a biological control agent against this economically important pest. © by PSP.


Babagil G.E.,Eastern Anatolia Agricultural Research Institute
Indian Journal of Agricultural Sciences | Year: 2013

The objectives of this study were to define direct and indirect correlations between the factors and the yield of four chickpea (Cicer arietinum L.) genotypes and to assess their effectiveness proportions in the Acological conditions of Erzurum by path analysis. The experiment was conducted on arid lands of Erzurum and Aziziye-94, Ipik, Cagatay and Yasa genotypes were used in this two-year experiment. Path analysis indicated the highest direct and positive effect of pod number (1.095), first pod height (0.574), and 100- seed weight (0.254) on seed yield. On the other hand, it indicated the direct and negative effect of plant length (-0.341), branch number (-0.383), seed number/pod (-1.311) on seed yield.


Sezgin A.,Eastern Anatolia Agricultural Research Institute | Kara A.,Eastern Anatolia Agricultural Research Institute
Journal of Animal and Veterinary Advances | Year: 2010

This study was conducted in 8 districts thought to represent Erzurum province regarding social, economic and cultural aspects with the aim to determine the factors having effects on the farm size. Study data were analysed by using cross tabulation and Ordinary Least Squares (OLS) techniques in GRETL statistical package software. Analysis of the data revealed that 60% of the respondents had an annual income between 5000 and 9000 TL as 66.6% of them had only primary school degree and 57.6% of them fell between 35 and 54 age group. It was also determined that 54.5% operated farm just only for family comsumpton while 54.5 had animal asset equal or <15 heads. As a determinant of farm size, number of big ruminants was considered. Factors having effect on the farm size were determined to be commercial production, forage crop acreage, age, education and income levels of the farmer, membership to the cooperatives and making use of agricultural supports. It was concluded that in order to increase the farm size extension studies and policy measures towards promoting farmers for commercial production, membership to cooperatives and increasing the acreage of forage crops should be considered. © Medwell Journals, 2010.


Aycicek M.,Bingöl University | Emel Babagil G.,Eastern Anatolia Agricultural Research Institute
Journal of Food, Agriculture and Environment | Year: 2013

The study was conducted across three locations and three years to find out the correlation and path coefficients between seed yield and plant height, number of main branches, first pod height, pod number per plant, seed number per plant and 100 kernel weights of four chickpea cultivars. Seed yield positively and significantly correlated with all characters except 100 kernel weight. Positive direct effects of plant height and pod number per plant with significant correlation with seed yield suggested that these yield components may be a good selection criteria to improve chickpea cultivars.

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