Erdogan O.,Cotton Research Station |
Karademir E.,International Agricultural Research and Training Center |
Karademir C.,International Agricultural Research and Training Center |
Unay A.,Adnan Menderes University
Notulae Botanicae Horti Agrobotanici Cluj-Napoca | Year: 2013
The susceptibility of cotton genotypes obtained from F6 and F7 generations to Verticillium wilt (VW) disease (Verticillium dahliae Kleb.), was studied under artificial and natural infestation during 2009 and 2010 growing seasons at the Cotton Research Institute's, Nazilli, Aydin, Turkey. In this study, fifteen cotton breeding lines and two control varieties were used as plant material. During the cotton growing season, foliar disease index (FDI), vascular disease index (VDI) and pot disease index (PDI) were observed in addition to seed cotton yield and some fiber quality characteristics. According to the obtained results, disease severity (DS) values observed in pot experiments were higher than field trials. In terms of DS, 'Tamcot CD3H' × 'Tamcot Luxor-III', 'Maraş92' × 'Tamcot Sphinx' and 'Sayar 314' × 'Stoneville 453-I' breeding lines exhibited similar values with tolerant 'Carmen' variety. 'Tamcot CD3H' × 'Tamcot Sphinx', 'Sayar 314' × 'Stoneville 453-I', 'Sayar 314' × 'Stoneville 453-II' and 'Stoneville 453' × 'Tamcot Sphinx' breeding lines which gave similar DS values with tolerant 'Carmen' variety were statistically on the same group with 'Carmen' variety suitable to seed cotton yield. In this study, the disease tolerant breeding lines had higher fiber strength values than susceptible lines, the lowest fiber strength value obtained from 'Cukurova 1518' susceptible variety.
Albayram Z.,International Agricultural Research and Training Center |
Mattas K.,Aristotle University of Thessaloniki |
Tsakiridou E.,Aristotle University of Thessaloniki
Operational Research | Year: 2014
The main aim of this study is to determine consumer behavior towards product quality and particularly towards local and non-local products labeled with geographical indications (GIs). In doing so, two GI products were identified, locally and non-locally produced, for the same market (IZMIR) and with the same consumer potentials for both products. In addition, consumer attitudes regarding these two products, a local product (South Aegean Olive Oil) and a non-local product (Ayvalik Olive Oil), were analyzed and then compared. Consumers' willingness to pay for both cases was estimated and the frequency of buying the products was measured utilizing 271 questionnaires. Factor analysis was run to show the main factors in accordance with consumers' behaviour. Afterwards, these factors were analyzed by using binary logistic regression to identify the factors influencing consumer characteristics and to study factor interactions. Results demonstrate that consumers behave reliably according to local GI-labeled products. Primarily, quality and origin of the products play significant roles in consumers' purchase decisions and consumers' reliance on local products is greater than non-local products. © 2014 Springer-Verlag Berlin Heidelberg.
Sayar M.S.,Dicle University |
Han Y.,International Agricultural Research and Training Center |
Basbag M.,Dicle University |
Gul I.,Kilis 7 Aralk University |
Polat T.,Harran University
Pakistan Journal of Agricultural Sciences | Year: 2015
The purpose of this study was to examine applied rangeland improvement and management studies carried out from 2004 to 2011 in six provinces of the Southeastern Anatolia Region of Turkey. The aims of the studies were to (1) protect and conserve rangeland soil and water resources, (2) improve and strengthen weakened rangeland vegetation, and (3) increase hay yields and grazing capacities of the rangelands. Additionally, one of the most important goals of these studies was to enhance the cultivation of forage crops in cultivated areas in order to decrease the adverse effects of overgrazing and to supply quality roughage for livestock. To achieve these objectives, different rangeland improvement methods and rangeland management strategies were applied in 40 different rangelands in the region. The results indicated that the average sufficien t rangeland area per animal unit was 1.99 ha, whereas the value recorded prior to these studies was 4.80 ha. © 2015, University of Agriculture. All rights reserved.
Birth and weaning weights of awassi lambs raised in the gap international agricultural research and training center [GAP Uluslararası Araştırma ve Eğitim Merkezi’nde yetiştirilen İvesi kuzularının doğum ve sütten kesim ağırlıkları]
Sireli H.D.,Dicle University |
Vural M.E.,International Agricultural Research and Training Center |
Karatas A.,International Agricultural Research and Training Center |
Akca N.,International Agricultural Research and Training Center |
And 2 more authors.
Ankara Universitesi Veteriner Fakultesi Dergisi | Year: 2015
In this study, the data were collected from 1271 heads of Awassi lambs raised in the GAP International Agricultural Research and Training Center in Diyarbakır, Turkey. Birth and weaning weight (at 90 days) of lambs were measured and average daily weight gain from birth to weaning was calculated. The effect of the years and season of lambing, age of dam, sex and birth type on birth weight (BWT), weaning weight (WWT) and average daily weight gain (ADWG) from birth to weaning were investigated. Overall means were 4.81±0.022 kg for BWT, 22.99±0.196 kg for WWT and 201.67±1.173 g for ADWG. The all tarits in the analyses were significantly (P<0.05) affected by all factors in the model. In addition, lambs born heavier grew faster and reached heavier WWT (p<0.01). Based on the single and multiple trait analyses, heritability estimates ranged from 0.21 to 0.25 for BWT, from 0.13 to 0.17 for WWT and from 0.13 to 0.17 for ADWG. Estimates of genetic correlations between BWT with WWT and ADWG were 0.61 and 0.61, respectively. © 2015, Chartered Inst. of Building Services Engineers. All rights reserved.
Sayar M.S.,Dicle University |
Han Y.,International Agricultural Research and Training Center
Journal of Agricultural Science and Technology | Year: 2016
This study was conducted to evaluate the performance of forage pea (Pisum sativum spp. arvense L.) genotypes, in terms of fresh forage yield and associated traits, when grown on the Kiziltepe Plain, Mardin, Turkey. Field trials were performed during the 2007-08 and 2009-2010 growing seasons. The experiments were arranged according to randomized block design with three replications. The following trait ranges were reported: Days to 50% flowering: 147.5-162.5 days, Natural plant height and Main Stem Height: 45.58-72.75 cm, Main stem height: 52.52-100.42 cm, Main stem numbers per plant: 1.275-1.658 stems plant-1, Main stem thickness: 2.913-3.703 mm, Fresh forage yield: 10.43-23.83 t ha-1 and Dry matter yield: 2.525-5.891 t ha-1. GGE (i.e., G+GE) biplot analysis showed that the two growing seasons were markedly different, stemming exclusively from differences in rainfall amounts between the two growing seasons. Results of this study showed that the lines 88P00-1-4-9-661 (1) and P101 (6), and cultivar Kirazli (9) were superior in terms of fresh forage yield, dry matter yield, natural plant height and days to 50% flowering traits. At the same time, PC2 scores of these genotypes were found near to zero, so, they were identified as stable genotypes for the investigated traits. In conclusion, in terms of forage yield, these three forage pea genotypes are recommended for the Kiziltepe Plain growing conditions. © 2016, Tarbiat Modares University. All rights reserved.
Gul A.,Ege University |
Ozaktan H.,Ege University |
Kidoglu F.,International Agricultural Research and Training Center |
Tuzel Y.,Ege University
Scientia Horticulturae | Year: 2013
This study was carried out to determine the effects of plant-growth-promoting rhizobacteria (PGPR) on cucumber (Cucumis sativus L. cv. Sardes F1) production in perlite under unheated greenhouse conditions. Four native bacterial strains (18/1K: Pseudomonas putida, 62: Serratia marcescens, 66/3: Bacillus spp., 70: Pseudomonas fluorescens) and one commercial product (FZB24: Bacillus amyloliquefaciens) were tested. Rhizobacteria inoculation took place before sowing and after transplanting. Plants were affected by Fusarium oxysporum f.sp. cucumerinum occurred naturally and effects of PGPR on cucumber yield were found statistically significant. Plants inoculated with Pseudomonas putida strain 18/1K and Serratia marcescens strain 62 gave significantly higher yield compared to the control plants. © 2013 Elsevier B.V.
Gursoy S.,Dicle University |
Kolay B.,International Agricultural Research and Training Center |
Avsar O.,International Agricultural Research and Training Center |
Sessiz A.,Dicle University
Research in Agricultural Engineering | Year: 2015
Five wheat stubble management practices i.e. chopping the stubble by the chopper mounted on combine during harvest and transmitting the straw to trailer (SCDF), chopping the stubble by the chopper mounted on combine during harvest and spreading the straw to field surface (SCDS), chopping the stubble on field surface after harvest by chopper mounted on combine and transmitting the straw to trailer (SCAF), leaving the stubble on field surface (SLS) and removing the stubble left on field surface by baling (SSB) and the cutting height of combine header (10 and 20 cm) were evaluated in terms of fuel consumption and field capacity. The result of the studies showed that the cutting height of header was increased from 10 to 20 cm, the field capacity increased from 1.195 to 1.365 ha/h and the fuel consumption decreased from 54.472 to 38.859 l/ha. While the highest field capacity was determined in SLS (1.846 ha/h), SCAF and SSB treatments had the lowest field capacity (0.954 and 0.891 ha/h, respectively). Chopping the stubble by chopper mounted on combine and transmitting straw to trailer during harvest increased the fuel consumption of combine by 3.6 times.
Determination of forage yield performance of some promising narbon vetch (Vicia narbonensis L.) lines under rainfed conditions in Southeastern Turkey [Bazı ümitvar koca fiğ (Vicia narbonensis L.) hatlarının güneydoğu anadolu bölgesi yağışa dayalı koşullarında ot verim performanslarının belirlenmesi]
Sayar M.S.,Dicle University |
Han Y.,International Agricultural Research and Training Center
Tarim Bilimleri Dergisi | Year: 2014
This study was conducted to determine fresh forage yield, dry matter yield, and their affecting components in promising narbon vetch lines (Vicia narbonensis L.) under rainfed conditions in the Southeastern Anatolia region of Turkey. Field trials were performed in the research areas of GAP International Agricultural Research and Training Center (GAP IARTC) in Diyarbakir, Turkey during the 2008-09, 2009-10 and 2010-11 growing seasons with winter sowings. Experiments were established according to randomized blocks design with three replications. Although the genotype × year interaction for the natural plant height trait was not found to be significant, the interaction was statistically significant (P<0.05) for the main stem number trait. For the other five traits, including fresh forage and dry matter yields, the genotype × year interaction was highly statistically significant (P<0.01). Among growing seasons and genotypes the investigated traits had ranges as follows: fresh forage yield-19.42-37.95 t ha-1; dry matter yield-4.07-7.16 t ha-1; days to 50% flowering-142.3-171.0 days; natural plant height-63.8-79.3 cm; main stem height-79.3-133.3 cm; main stem numbers per plant-1.93-3.40 stems plant-1; and main stem thickness-33.2-4.97 mm. Correlation analyses indicated that there were highly significant and positive correlation between fresh forage yield and dry matter yield, though the correlation between fresh forage yield and days to 50% flowering were found as statistically significant and positive (P<0.05). According to averages over the three study years five promising narbon vetch lines: IFVN 564-Sel 2379, IFVN 565-Sel 2380, IFVN 567-Sel 2382, IFVN 116-Sel 2461, IFVN 562-Sel 2470, were all found more productive than the control cultivar, Tarman-2002, in terms of both fresh forage yield and dry matter yield. © Ankara Üniversitesi Ziraat Fakültesi.
Kendal E.,Mardin Artuklu University |
Tekdal S.,Mardin Artuklu University |
Tekdal S.,International Agricultural Research and Training Center
Bangladesh Journal of Botany | Year: 2016
The aim of study was to evaluate the yield performance of genotypes and stability, environments and G × E interaction of 12 spring barley genotypes in multi-environment trials. The trials were implemented in respect to a integrate arrangement complex style with four replications. The AMMI (Additive main effects and multiplicative interaction) analysis was made to estimate grain yield and understand G × E interaction patterns. Analysis indicated that the major contributions to treatment sum of squares were environments (81.4%), GE (10.3%) and genotypes (8.3%), respectively; suggesting that grain yield of genotypes was effected environmental conditions. PCA 1 and PCA 2 axes (Principal component) were significant (0.01) and supplied to 68.30% of the complete G × E interaction. The AMMI analysis revealed that E3 and E5 were more stable and high productive; mean while E6 and E7 were unstable and nominal efficient environments. According to stability variance, the genotypes (G1, G3, G6 and G9) were the productive and more stable; meanwhile G4 and G5 were low productive and stable genotypes. Moreover, G2 were the best productive to all environments without E2. The G × E model exposed according to AMMI analysis recommended that G2 shown candidates and registered as Kendal, because of wide adaptability with high performances in all environments.
Kendal E.,International Agricultural Research and Training Center |
Sener O.,Mustafa Kemal University
Indian Journal of Genetics and Plant Breeding | Year: 2015
A study was conducted to examine the effects of genotype × environment interaction (GEI) on grain yield, its components, and quality characteristics using genotype main effect (G) plus genotype × environment interaction (GE) (GGE) biplot analysis. Significant differences were observed among cultivars in grain yield, yield components, and quality traits and the relationship between yield components was used to identify three groups. Positive correlations were found between quality parameters and yield components, whereas correlations of quality parameters with yield and yield components were negative. The GGE biplot indicated that E6 (single irrigated location at Diyarbakir) was an ideal environment for all traits and E5 (rainfed locations at Diyarbakir) was a highly efficient model for quality parameters. The biplot analysis showed that Zenit was the best cultivar in terms of yield and quality and Zühre was efficient for quality parameters only and hence these two genotypes can be recommended to Southeastern Anatolia Region in Turkey. © 2015, Indian Society of Genetics and Plant Breeding. All rights reserved.