خيارات البحث
النتائج 31 - 40 من 434
Near Infrared Reflectance Spectroscopy and Multivariate Analyses for Fast and Non-Destructive Prediction of Corn Seed Germination
2020
Nafiz Çeliktaş | Ömer Konuşkan
The application of near-infrared reflectance spectroscopy (NIRS) and multivariate analysis for determining the seed germination rate of corn genotypes was assessed. Seed samples about 90 gr belong to commercial and local corn varieties at various ages were scanned with FT-NIRS on the reflectance mode from 1000 to 2500 nm wavelength. Filter paper technique showed the seed germination rates varied between 18-100% depending on the genotypes after 7 days at ±25°C. Partial least squares regression (PLSR) was applied to the reference values corresponding to the spectra. The best statistical results obtained from the pre-treatment combinations of Smooth Savitzky-Golay 9 Points (sg9), MSC full and normalization to unit length (nle). The regression coefficient of calibration (R2C) and prediction (R2P) of the created NIRS calibration via chemometric software NIRCal are realized 0.97 and 0.98 respectively for the property of corn germination rate. The standard error of both calibration (SEC) and prediction (SEP) were almost overlapping (4.17%, 4.61% respectively). The prediction accuracy of the final NIRS model was quite reasonable with the acceptable root mean standard error of prediction (RMSEP) as 8.88%. According to the residual predictive deviation (RPD) index (4.18), the accuracy of the NIRS model regarded as in the best category. Therefore, the NIRS model developed here is sufficient to predict the corn seed germination rate very fast and non-destructively without using any regents.
اظهر المزيد [+] اقل [-]Determination the Heavy Metal Contents of Wastewater from the Leather Factory
2020
Özgür Canpolat | Metin Çalta
In this study, it is aimed to determine the heavy metal pollution caused by wastewaters of leather factory in Keban Dam Lake (Agın region). For this purpose, water samples were taken monthly during one year from the selected stations (wastewater of leather factory, wastewater discharged region and open water region). The concentrations of some heavy metals (Cu, Fe, Zn, Cr, Ni, Cd, As and Hg) were determined in water samples. The ranges of elements were found as Cu=11.71-19.14; Fe=82.03-169.92; Zn=39.06-70.31; Cr=58.59-82.03; Ni=2.5-10.25; Cd=45-72.5 mg/L; As=43.57-76.0 and Hg=0.42-0.76 µg/L in wastewater; Cu=6.25-9.74; Fe=42.96-87.89; Zn=16,21-42,96; Cr=39,06-58.59; Ni=1.22-7.25; Cd=23.75-45.0 mg/L; As=20.32-37.92 and Hg=0.19-0.38 µg/L in discharged water to dam lake, Cu=0.31-0.52; Fe=0.24-0.54; Zn=0.43-0.67; Cr=0.05-1.12; Ni=0.002-0.004 and Cd=0.009-0.02 mg/L in open water respectively. It has been determined that heavy metal pollution is very high in the wastewater of leather factory and discharged water to Dam Lake. Among these heavy metals, the most accumulated metal was chromium. In all three regions, the lowest concentrations were found in winter and the highest concentrations were found in summer. The results were compared with tolerable values for heavy metals provided from the WHO, EC and USEPA standards for freshwater. Cu, Fe, Zn, Cr and Ni concentrations in the wastewater and discharged water to the Dam Lake were found above the standard values given by WHO, EC and USEPA.
اظهر المزيد [+] اقل [-]Structural Characteristics, Mechanization Applications, Problems and Solution Suggestions of Poultry Houses of Broiler Chickens in Bolu Central District
2020
Kerem Aytimur | Ebubekir Altuntaş | Sedat Karaman
In this study, structural characteristics, mechanization applications, problems and solution suggestions of poultry houses of broiler chickens in Bolu central district were investigated. The surveys were conducted in a total of 200 broilers in 8 villages (Oğulduruk, Taps, Değirmenbeli, Çivril, Banaz, Yakuplar, Vakıfgeçitveren and Çaygökpınar) where the broiler production of the central district of Bolu was intensively produced. The field work for the surveys was conducted in February-April 2018. In the broiler houses surveyed in the central district of Bolu, it was determined that the capacity was generally in the range of 5.000 ≤ Capacity < 20.000 (74%), and nearly all of the houses (96.5%) were in the east-west direction. It was determined that the concrete materials are used in the foundations of all the houses examined, and %79 Sandwich panel on the walls and 86.5% of the poultry houses are used mechanical ventilated, in 70% of the poultry houses have 9 and more fans for ventilation, and in all of the poultry house are used luminaires for illumination.It was determined that 91.5% of the poultry houses had a tractor, 96% of the poultry houses had full automatic watering, and nipple drinker with lifting system was used and 87.5% of the poultry houses had honeycomb (Ped) application. It was determined that the number of animals placed in 1 m² was 16-18 (42.5%). It was determined that 15.5% of the problem, 13% of deficiency of information with the broiler houses, 20% of credit and debt problems. Then, there should be a solution to the problem of disease among the producer problems in the enterprises examined and the credit facilities should be improved. In addition, manufacturers need to be informed according to new technological developments in information deficiencies.
اظهر المزيد [+] اقل [-]Effect of Calving Season, Calving Year and Lactation Number on the Milk Yield Traits in Holstein Cows Raising in Şanlıurfa
2020
Durhasan Mundan | Abuzer Kafar Zonturlu | Yahya Öztürk | Tuğra Akkuş | Cihan Kaçar
The aim of the present study is to investigate the impact of some environmental factors on the descriptive values of milk yield characteristics in Holstein cows. For this purpose, a total of 241 lactations belonging to 62 Holstein cows had been kept as breeders in a private establishment were evaluated for 7 years in terms of milk yield. When the recording system of the establishment was examined, the average values of lactation yield (LY), corrected 305 day milk yield (305-dMY), average daily milk yield (ADMY) and lactation length (LL) were 9356.2±126.1 kg, 8549.2±105.8 kg, 28.0±0.3 kg and 315.0±2.3 days, respectively. The least mean squares (LMS) of LY was calculated as 9324.9 kg. It was found that the effect of the calving season on the LY was statistically significant (P
اظهر المزيد [+] اقل [-]Studies on Antimicrobial, Antifungal and Antioxidant Properties of Rosemary: A Review
2020
İbrahim Ertan Erkan | Özlem Aras Aşcı
Rosemary has played an important role from past to present and has antimicrobial, antifungal and antioxidant properties. With these features, it is used in many sectors, especially food and pharmacy. Rosemary essential oils have a positive effect on biological activity. In addition, this oil prevents lipid oxidation on foods, providing a long and fresh shelf life. Due to the high antioxidant properties of rosemary, it eliminates the harmful effect of reactive oxygen species. Since the main components of rosemary such as 1,8-cineol, camphor, α-pinene, carnosic acid, and carnosol are being antimicrobial and antifungal, it is effective against many pathogens. With this review, it is aimed to provide comprehensive information on the biological activities of rosemary and its extracts to shed light on future research.
اظهر المزيد [+] اقل [-]Determination of Knowledge Level, Consumption Behaviours and Habits about the Bee Products of the University Students
2020
Sertaç Arı | Durmuş Ali Ceylan | Aziz Gül | Ethem Akyol
In the research, it was aimed to determined he level of information of university students’ about bee products, consumption behaviors and habits. The study was conducted on 311 students who were randomly selected from the students studying at Selçuk University. Most of the students who participated in the survey live in the Marmara Region. When the results were examined, it was found that all of the students had knowledge about honey, however, the knowledge level for pollen, royal jelly, bee wax, bee venom and propolis were75.2%, 43.7%, 41.2%, 30.2%and 21.2%, respectively. There was also no significant difference bet ween gender and consumption of honey, pollen and propolis. Whilet here was a significant difference bet ween honey and propolis consuming of students in terms of monthly average income and consumption of bee products, there was no significant difference in pollen and royal jelly consumption. It was found that there was no significant difference in bee product like honey, pollen and royal jelly between average monthly food expenditure and consumption, but it was found that there was a significant difference in consuming propolis.With this information, the students how they obtained the bee products, how much they consume in which season, how they understand the artificiality and crystallization of honey, and the physical states of the products were compared and also, these results compared with the other studies made about this topic before and some suggestions were made.
اظهر المزيد [+] اقل [-]Effected Proteins in Apple and Erwinia amylovora Interactions
2020
Kubilay Kurtulus Bastas | Ayşegül - Gedük
Fire blight disease caused by Erwinia amylovora can infect almost 140 plants of the Rosaceae family and poses a great threat to pome fruits growing all over the world. It needs amylovoran and Type III secretion systems (T3SS) to cause disease in host plants. AmsB, AmsD, AmsE, AmsF, AmsG, AmsJ, AmsI and AmsK proteins are involved in the binding of different galactose, glucuronic acid and pyruvyl subunits to the lipid carrier to form an amylovoran unit. T3SS proteins secreted by E. amylovora are HrpA HrpN, HrpW, AvrRpt2EA, HopC1 and DspA/E. DspA/E, the sole effector of E. amylovora, is secreted by during the formation of pilus T3SS. The chaperone protein of E. amylovora is DsB/F, which is in the IA class. EopB (outer membrane protein) has been characterized as one of the secretory proteins of E. amylovora. In addition to the harpins, the pathogenicity protein DspE and OrfB proteins are secreted via the Hrp-secretory system of E. amylovora. E. amylovora forms a Hrp pilus, which is produced by the structural protein HrpA. Genes encoding antimicrobial proteins cloned and expressed in apples and pears for impart resistance to the pathogen, attacin E are cecropins and lysozymes. The expression of PR2, PR5 and PR8 proteins is increased with E. amylovora infection in apple. Again, the HIPM protein in apples interacts with the E. amylovora HrpN protein, and the HIPM protein is found in higher amounts in flowers than leaves and shoots. In addition, four apple proteins (DIPMs) that interact with E. amylovora effector protein DspA/E have an effective role in endurance. In order to understand the interaction between the plant and the pathogen, it will be possible to understand the proteins that recognize the pathogen in the host, as well as the signal system and plant defense mechanism resulting from the infection. In this study, the roles of proteins associated with pathogenesis as a result of infection of E. amylovora in apples were tried to be revealed.
اظهر المزيد [+] اقل [-]Irrigation Water Potential and Land Suitability Assessment in Kurfa Chele-Girawa Watershed, Wabe Shebelle River Basin, Ethiopia
2020
Girma Mideksa | Tasisa Temesgen Tolossa
Assessing available water and land for irrigation are important for planning their use. In the watershed, stream flows from some of the rivers are not known and potential irrigable areas have not been identified. By delineating watershed boundary, irrigation suitability factors such as soil type, slope, land cover/use, and distance from the water supply were classified based on the FAO guideline for land evaluation in to S1, S2, S3 and N suitability classes independently. The irrigation potential suitability analysis of soil, slope, land cover/use and Euclidean distance indicates that 55.1 %, 95.6 %, 88.6% and 93.7% respectively are in the range of highly to marginally suitable. By weighted overlay analysis, total surface irrigation suitability potential of the study area is 54.6%, from this, the potential irrigable land obtained by multi_ criteria analysis has 45.9%. The total available flow above abstraction site is 335.7m3/s or 2.9-million-meter cube (MMC) annually.
اظهر المزيد [+] اقل [-]Current Situation and Problems of Enterprises Producing Grapevine Saplings
2020
Rüstem Cangi | Kürşad Durmaz | Esen Oruç
The aim of this research was to determine the structural characteristics of the grapevine sapling producing enterprises and to reveal the problems. The main material of study are data were obtained from questionnaire study. In the study, face-to-face interviews were conducted with 12 enterprises which are members of Sapling Producers Sub-Union (SPSU). During the research period, there were 33 SPSU members, but the majority of these enterprises were small-sized and engaged in the purchase and sale without production. In the research, it was tried to be interviewed with all of the large capacity, both production and sales, and 12 of 33 enterprises were interviewed. The interviewed enterprises hold a large part of the grapevine sapling market. The obtained data were evaluated and interpreted by means of percentage distribution tables, average, maximum and minimum calculations. According to the results of the research, enterprises have been producing grapevine saplings on average at the commercial level for 12 years. All of the interviewed enterprises produce bare-rooted saplings. In addition, potted (58.33%) and American grapevine (25%) saplings also are produced. Grafted sapling yield rates of enterprises have been determined as 45% in own root saplings and 72% in potted sapling. 67% of the producers reported that they have problems in sapling marketing and carrying and storing saplings is a significant problem at this stage. The producers demanded that measures to prevent the informal production from authorities.
اظهر المزيد [+] اقل [-]Bioinformatics Analysis of Fugu (Fugu rubripes) Catalase (cat) Gene
2020
Mehtap Bayır | Gökhan Arslan
In this study, bioinformatics analysis of fugu (Fugu rubripes) catalase (cat) gene was performed. Molecular biology science is developing rapidly in parallel with the increasing importance of bioinformatics, thanks to the developed techniques in recent years. In this bioinformatics-based study wich enables the effective identification and characterization of genes in living organisms using online genome databases and statistics and storage, organization and sharing of the ever-increasing genetic data we designed the conserved gene synteny and gene structure and detected the identiy-similarity ratios between fugu and the other telosts and tetrapods. NCBI-GeneBank, EMBL, ENSEML and UNIPROT databases have been used for all these bioinformatics studies. Bioedit and Mega programs were used to perform the analysis and evaluate the data obtained from all these databases. In silico analysis such as the identification and characterization of fugu cat gene, exons-introns organization, phylogenetic tree and gene synteny were completed in this study and presented with tables and figures.
اظهر المزيد [+] اقل [-]