Path Analizi, süt sığırcılığı başta olmak üzere hayvancılık alanında yaygın kullanılan yöntemler arasındadır. Modelde bulunan bağımlı ve bağımsız değişkenlerin birbirleri üzerinde doğrudan ve dolaylı etkilerinin hesaplanmasında kullanılan bu yöntem araştırmacılara oldukça ayrıntılı yorumlama imkânı sunmaktadır. Bu çalışmada, 1007 baş Holstein ırkı süt sığırına ilişkin laktasyon sayısı, buzağılama mevsimi, kuru dönem, servis periyodu ve tohumlama sayısı değişkenlerinin 305-gün süt verimi üzerine doğrudan ve dolaylı etkileri Path analizi ile araştırılmıştır. Çalışmanın analizleri IBM SPSS 26.0 ve IBM SPSS AMOS 21 programı ile gerçekleştirilmiştir. Laktasyon sırası (-0.061) ve buzağılama mevsimi (0.027) değişkenlerinin 305-gün süt verimi üzerine doğrudan etkilerinin istatistiksel açıdan anlamlı olmadığı görülmektedir (p>0.05). Kuru dönem (-0.354), servis periyodu (-0.505) ve tohumlama sayısı (0.386) değişkenlerinin 305-gün süt verimi üzerine doğrudan etkilerinin istatistiksel açıdan anlamlı olduğu tespit edilmiştir (p
{"title":"Path Analysis for Factor Affecting the 305- Day Milk Yield of Holstein Cows","authors":"Asli Akilli, E. Kul, Hulya Atil","doi":"10.55507/gopzfd.1195147","DOIUrl":"https://doi.org/10.55507/gopzfd.1195147","url":null,"abstract":"Path Analizi, süt sığırcılığı başta olmak üzere hayvancılık alanında yaygın kullanılan yöntemler arasındadır. Modelde bulunan bağımlı ve bağımsız değişkenlerin birbirleri üzerinde doğrudan ve dolaylı etkilerinin hesaplanmasında kullanılan bu yöntem araştırmacılara oldukça ayrıntılı yorumlama imkânı sunmaktadır. Bu çalışmada, 1007 baş Holstein ırkı süt sığırına ilişkin laktasyon sayısı, buzağılama mevsimi, kuru dönem, servis periyodu ve tohumlama sayısı değişkenlerinin 305-gün süt verimi üzerine doğrudan ve dolaylı etkileri Path analizi ile araştırılmıştır. Çalışmanın analizleri IBM SPSS 26.0 ve IBM SPSS AMOS 21 programı ile gerçekleştirilmiştir. Laktasyon sırası (-0.061) ve buzağılama mevsimi (0.027) değişkenlerinin 305-gün süt verimi üzerine doğrudan etkilerinin istatistiksel açıdan anlamlı olmadığı görülmektedir (p>0.05). Kuru dönem (-0.354), servis periyodu (-0.505) ve tohumlama sayısı (0.386) değişkenlerinin 305-gün süt verimi üzerine doğrudan etkilerinin istatistiksel açıdan anlamlı olduğu tespit edilmiştir (p","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115838021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: In this study, the effects of some environmental factors on the weaning weights of Awassi lambs, raised within the scope of the Awassi sheep breed sub-project of the Ovine Breeding National Project in the Hands of the People Project under the coordination of the General Directorate of Agricultural Research and Policies affiliated to the Ministry of Agriculture and Forestry, were investigated. For this purpose, estimation was made with the regression decision tree (CRT) method, which is one of the machine learning algorithms. In the study, the effects of age of dam, gender, birth type and flock type (elite and base flock), which are thought to influence weaning weight in Awassi lambs, were considered independent variables, while weaning weight was considered as the dependent variable. According to the regression tree estimations, the most effective environmental factor on weaning weight of Awassi lambs was found to be the birth type. While the effective factor for singleton lambs was the gender, it was determined that the important factor for male lambs was the type of flock. Age of dam was found to be effective on the weaning weights of the lambs in the base flock.
{"title":"Application of Classification and Regression Tree (CRT) Method for Predicting the Some Environmental Factors Affecting Weaning Weight of Awassi Lamb","authors":"H. Hızlı, Ç. Takma, Ş. Ergül","doi":"10.55507/gopzfd.1169234","DOIUrl":"https://doi.org/10.55507/gopzfd.1169234","url":null,"abstract":": In this study, the effects of some environmental factors on the weaning weights of Awassi lambs, raised within the scope of the Awassi sheep breed sub-project of the Ovine Breeding National Project in the Hands of the People Project under the coordination of the General Directorate of Agricultural Research and Policies affiliated to the Ministry of Agriculture and Forestry, were investigated. \u0000For this purpose, estimation was made with the regression decision tree (CRT) method, which is one of the machine learning algorithms. In the study, the effects of age of dam, gender, birth type and flock type (elite and base flock), which are thought to influence weaning weight in Awassi lambs, were considered independent variables, while weaning weight was considered as the dependent variable. \u0000According to the regression tree estimations, the most effective environmental factor on weaning weight of Awassi lambs was found to be the birth type. While the effective factor for singleton lambs was the gender, it was determined that the important factor for male lambs was the type of flock. Age of dam was found to be effective on the weaning weights of the lambs in the base flock.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130188597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Küçüktopçu, S. Uzal Seyfi, Mu'minah Mustaqimah, B. Cemek
An essential parameter for the design of a dairy barn is adequate ventilation. A well-ventilated barn benefits the environment and the animals by reducing stress and improving air quality. The aim of this research was to evaluate the spatial variability of environmental conditions in a free-stall dairy barn using computational fluid dynamics (CFD) modeling. Measurements of temperature and air velocity were made in the barn for comparison with the simulated results. The simulations were performed under steady-state conditions and considered the specific behavior of cows standing and lying down, as well as their distribution in the barn. The measured and predicted mean air temperatures in the barn were 21.50 ± 0.174 °C and 21.33 ± 0.213 °C, while the air velocities were 0.30 ± 0.196 m s-1 and 0.31 ± 0.197 m s-1, respectively. The results from CFD showed that the barn was not adequately ventilated, which could lead to severe problems for the cows inside. Consequently, the application of the proposed model CFD in simulating specific building design alternatives could aim to investigate the appropriate airflow distribution to find the best configuration.
奶牛场设计的一个基本参数是足够的通风。一个通风良好的谷仓通过减少压力和改善空气质量对环境和动物有益。本研究的目的是利用计算流体动力学(CFD)模型来评估自由畜棚中环境条件的空间变异性。对谷仓内的温度和风速进行了测量，与模拟结果进行了比较。模拟是在稳态条件下进行的，考虑了奶牛站着和躺着的具体行为，以及它们在牛棚中的分布。实测和预测的平均气温分别为21.50±0.174°C和21.33±0.213°C，风速分别为0.30±0.196 m s-1和0.31±0.197 m s-1。CFD结果显示，牛棚通风不足，可能会给牛棚内的奶牛带来严重问题。因此，将所提出的模型CFD应用于模拟具体的建筑设计方案，可以研究合适的气流分布，以找到最佳配置。
{"title":"Computational Fluid Dynamics Modeling of Environmental Conditions in A Naturally Ventilated Free-Stall Dairy Barn","authors":"E. Küçüktopçu, S. Uzal Seyfi, Mu'minah Mustaqimah, B. Cemek","doi":"10.55507/gopzfd.1181753","DOIUrl":"https://doi.org/10.55507/gopzfd.1181753","url":null,"abstract":"An essential parameter for the design of a dairy barn is adequate ventilation. A well-ventilated barn benefits the environment and the animals by reducing stress and improving air quality. The aim of this research was to evaluate the spatial variability of environmental conditions in a free-stall dairy barn using computational fluid dynamics (CFD) modeling. Measurements of temperature and air velocity were made in the barn for comparison with the simulated results. The simulations were performed under steady-state conditions and considered the specific behavior of cows standing and lying down, as well as their distribution in the barn. The measured and predicted mean air temperatures in the barn were 21.50 ± 0.174 °C and 21.33 ± 0.213 °C, while the air velocities were 0.30 ± 0.196 m s-1 and 0.31 ± 0.197 m s-1, respectively. The results from CFD showed that the barn was not adequately ventilated, which could lead to severe problems for the cows inside. Consequently, the application of the proposed model CFD in simulating specific building design alternatives could aim to investigate the appropriate airflow distribution to find the best configuration.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116027578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this research, aquaculture products operating in the Black Sea Region the aim was to determine the burnout levels of the employees working in the facilities. The provinces in the Black Sea Region (Rize, Trabzon, Sinop, Samsun) and the processing facility to be studied in these provinces were determined by the "Cascade sampling method". Face-to-face interviews were conducted with 102 employees, who were determined by calculations based on the total number of employees of the processing facility. The primary data of the research were obtained by applying the questionnaire forms prepared in accordance with the purpose of the research to the employees in the fishery processing facilities. The research was completed by examining the Maslach burnout scale and three sub-dimensions: emotional exhaustion, depersonalization and personal achievement. In the research, it has been determined that the employees have a high level of satisfaction with their working environment and working conditions, although their working time in the sector is short. As a result, it has been understood that similar situations such as the satisfaction of the employees with their jobs and salaries are factors in the low level of burnout of the employees.
{"title":"Determination of the Burnout Factor Due to Working Conditions in Some Fish Processing Facilities in the Black Sea Region","authors":"Mehmet Emin Erdem, Şennan Yücel, Selahattin Çoban","doi":"10.55507/gopzfd.1160156","DOIUrl":"https://doi.org/10.55507/gopzfd.1160156","url":null,"abstract":"In this research, aquaculture products operating in the Black Sea Region the aim was to determine the burnout levels of the employees working in the facilities. The provinces in the Black Sea Region (Rize, Trabzon, Sinop, Samsun) and the processing facility to be studied in these provinces were determined by the \"Cascade sampling method\". Face-to-face interviews were conducted with 102 employees, who were determined by calculations based on the total number of employees of the processing facility. The primary data of the research were obtained by applying the questionnaire forms prepared in accordance with the purpose of the research to the employees in the fishery processing facilities. The research was completed by examining the Maslach burnout scale and three sub-dimensions: emotional exhaustion, depersonalization and personal achievement. In the research, it has been determined that the employees have a high level of satisfaction with their working environment and working conditions, although their working time in the sector is short. As a result, it has been understood that similar situations such as the satisfaction of the employees with their jobs and salaries are factors in the low level of burnout of the employees.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114144608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bu çalışmanın amacı, toprağa dört farklı organik madde ilavesinin (fındık kabuğu kompostu ve çiftlik, güvercin, kümes hayvanları ve koyun gübreleri) toprağın ıslanma-kuruma döngüsü sırasında topraktan CO2 salınımına etkisini ve CO2 salınımının toprak nemi, H2O salınımı ve toprak sıcaklığı ile ilişkilerini incelemektedir. Sonuçlar, en yüksek CO2 salınımının güvercin gübresi uygulamasında (0.805 g m-2 h-1) olduğunu ve bunu sırasıyla fındık kabuğu kompostu (0.658 g m-2 h-1), kümes hayvanları (0.541 g m-2 h-1), çiftlik (0.476 g m-2 h-1) ve koyun gübresi uygulamalarının (0.424 g m-2 h-1) ve akabinden kontrol uygulaması olarak toprağın (0.300 g m-2 h-1) takip ettiğini göstermiştir. Kontrol uygulamasına kıyasla tüm organik madde ilavesi uygulamalarında toprak nemi artmış, H2O salınımı ve toprak sıcaklığı azalmış, böylece CO2 salınımı toprak nemi ile pozitif lineer, H2O salınımı ve toprak sıcaklığı ile negatif lineer ilişkiye sahip olmuştur. Bu nedenle, CO2 salınımını azaltmak için toprak nemini yöneterek hem organik madde hem de azot içeriği düşük organik madde ilavelerinin (sırasıyla koyun, çiftlik ve kanatlı gübreler) toprağa uygulanmasının küresel ısınma riskine karşı daha koruyucu bir görüş olabileceği sonucuna ulaşılmıştır.
{"title":"Farklı Organik Maddeler İçeren Topraklardan Islanma-Kurutma Koşullarında CO2 Emisyonu ve CO2 Emisyonunun Nem, Sıcaklık ve H2O Emisyonu ile İlişkileri","authors":"Can Yerli, Talip Çakmakcı, Ustun Sahin","doi":"10.55507/gopzfd.1187899","DOIUrl":"https://doi.org/10.55507/gopzfd.1187899","url":null,"abstract":"Bu çalışmanın amacı, toprağa dört farklı organik madde ilavesinin (fındık kabuğu kompostu ve çiftlik, güvercin, kümes hayvanları ve koyun gübreleri) toprağın ıslanma-kuruma döngüsü sırasında topraktan CO2 salınımına etkisini ve CO2 salınımının toprak nemi, H2O salınımı ve toprak sıcaklığı ile ilişkilerini incelemektedir. Sonuçlar, en yüksek CO2 salınımının güvercin gübresi uygulamasında (0.805 g m-2 h-1) olduğunu ve bunu sırasıyla fındık kabuğu kompostu (0.658 g m-2 h-1), kümes hayvanları (0.541 g m-2 h-1), çiftlik (0.476 g m-2 h-1) ve koyun gübresi uygulamalarının (0.424 g m-2 h-1) ve akabinden kontrol uygulaması olarak toprağın (0.300 g m-2 h-1) takip ettiğini göstermiştir. Kontrol uygulamasına kıyasla tüm organik madde ilavesi uygulamalarında toprak nemi artmış, H2O salınımı ve toprak sıcaklığı azalmış, böylece CO2 salınımı toprak nemi ile pozitif lineer, H2O salınımı ve toprak sıcaklığı ile negatif lineer ilişkiye sahip olmuştur. Bu nedenle, CO2 salınımını azaltmak için toprak nemini yöneterek hem organik madde hem de azot içeriği düşük organik madde ilavelerinin (sırasıyla koyun, çiftlik ve kanatlı gübreler) toprağa uygulanmasının küresel ısınma riskine karşı daha koruyucu bir görüş olabileceği sonucuna ulaşılmıştır.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122076210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reducing the negative effects of drought disaster, which is one of the most important parameters affecting the planning and management of water resources, has become very important today. Many methods have been proposed in the literature for the calculation of drought, which is used to express the periods when precipitation is significantly less than the average, and two of these methods, "Standardized Precipitation Index" and "Reconnaissance Drought Index" were applied to the Yeşilırmak basin in this study. 12-month standardized precipitation index and reconnaissance drought index analyzes were made and compared by using the monthly precipitation and evapotranspiration totals of 8 stations in the Yeşilırmak Basin for the period 1991-2020. The results show us that standardized precipitation index and reconnaissance drought index methods generally give similar signals for wet periods, but reconnaissance drought index method defines more extreme dry periods than standardized precipitation index method in extreme dry periods. While the reconnaissance drought index method defines more extreme dry periods than the standardized precipitation index method; It was observed that the standardized precipitation index method defined more extreme wet periods than the reconnaissance drought index method. In drought analysis, using an index based on more than one meteorological parameter (such as reconnaissance drought index) will give more reliable results instead of using an index based on a single parameter (i.e, standardized precipitation index). It has shown in this study that the effect of evapotranspiration values in drought calculation is very important by comparing it with reconnaissance drought index analysis and standardized precipitation index analysis.
{"title":"Drought Analysis with Two Different Indices in Yeşilırmak Basin","authors":"Mehmet Selim Geyikli, M. A. Hinis, K. Yürekli","doi":"10.55507/gopzfd.1166245","DOIUrl":"https://doi.org/10.55507/gopzfd.1166245","url":null,"abstract":"Reducing the negative effects of drought disaster, which is one of the most important parameters affecting the planning and management of water resources, has become very important today. Many methods have been proposed in the literature for the calculation of drought, which is used to express the periods when precipitation is significantly less than the average, and two of these methods, \"Standardized Precipitation Index\" and \"Reconnaissance Drought Index\" were applied to the Yeşilırmak basin in this study. \u000012-month standardized precipitation index and reconnaissance drought index analyzes were made and compared by using the monthly precipitation and evapotranspiration totals of 8 stations in the Yeşilırmak Basin for the period 1991-2020. The results show us that standardized precipitation index and reconnaissance drought index methods generally give similar signals for wet periods, but reconnaissance drought index method defines more extreme dry periods than standardized precipitation index method in extreme dry periods. While the reconnaissance drought index method defines more extreme dry periods than the standardized precipitation index method; It was observed that the standardized precipitation index method defined more extreme wet periods than the reconnaissance drought index method. In drought analysis, using an index based on more than one meteorological parameter (such as reconnaissance drought index) will give more reliable results instead of using an index based on a single parameter (i.e, standardized precipitation index). It has shown in this study that the effect of evapotranspiration values in drought calculation is very important by comparing it with reconnaissance drought index analysis and standardized precipitation index analysis.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129451940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, some environmental factors thought to be effective on 305-day milk yield in Simmental cows, were examined according to the decision tree method with regression tree algorithm. For this purpose, the effect levels of calving interval, somatic cell count, calving age, and parity variables on the 305-day milk yield of 148 Simental cows were determined. As a result of the decision tree application, the factors affecting 305-day milk yield were found as parity, calving age, somatic cell count, and calving interval, in order of importance. In addition, it was determined that the 305-day milk yield of the cows with the calving age above 5 was high, and the cows with the somatic cell count greater than 104.500 were found to be the lowest. There is a need to use the decision tree approach in order to examine the effects of other environmental factors that are thought to be effective on milk yield or other economic characteristics in dairy farming and to provide appropriate conditions by correcting the relevant factors accordingly.
{"title":"A Decision Tree Model to Determine Some Environmental Factors Affecting 305-Day Milk Yield in Simmental Cows","authors":"Asli Akilli, Hulya Atil, Ç. Takma","doi":"10.55507/gopzfd.1175502","DOIUrl":"https://doi.org/10.55507/gopzfd.1175502","url":null,"abstract":"In this study, some environmental factors thought to be effective on 305-day milk yield in Simmental cows, were examined according to the decision tree method with regression tree algorithm. For this purpose, the effect levels of calving interval, somatic cell count, calving age, and parity variables on the 305-day milk yield of 148 Simental cows were determined. As a result of the decision tree application, the factors affecting 305-day milk yield were found as parity, calving age, somatic cell count, and calving interval, in order of importance. In addition, it was determined that the 305-day milk yield of the cows with the calving age above 5 was high, and the cows with the somatic cell count greater than 104.500 were found to be the lowest. There is a need to use the decision tree approach in order to examine the effects of other environmental factors that are thought to be effective on milk yield or other economic characteristics in dairy farming and to provide appropriate conditions by correcting the relevant factors accordingly.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117175459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gizem Berber, Berke Demirci, U. Toprak, Emre İnak, S. Yorulmaz
Myzus persicae (Sulzer) (Hemiptera: Aphididae) is a polyphagous pest that causes significant losses in many crops. In the present study, the biochemical and molecular mechanism of acetamiprid resistance in a laboratory-selected Myzus persicae population of which the resistance ratios reached 57.5-fold were investigated. This study was conducted in the Isparta University of Applied Sciences, Agriculture Faculty, Department of Plant Protection in 2018 and 2020. Synergism, biochemical and molecular assays showed the absence of increased P450 activity in selected population. In addition, no point mutation in nicotinic acetylcholine receptor (nAChR), the target-site of neonicotinoids including acetamiprid, was detected in the selected population. These results suggests that high level of acetamiprid resistance might be developed via the mechanisms other than well-known mechanisms, such as increased P450 activity and target-site mutations. The population selected with acetamiprid showed decreased susceptibility to imidacloprid, sulfaxaflor, beta-cyfluthrin, and tau-fluvanite ranging from 1.54 to 4.76. Nonetheless, more studies are needed to support cross-resistance by Myzus persicae populations having different genetic backgrounds.
{"title":"Acetamiprid Resistance in the Green Peach Aphid Myzus persicae (Sulzer) (Hemiptera: Aphididae): Selection, Cross-Resistance, Biochemical and Molecular Resistance Mechanisms","authors":"Gizem Berber, Berke Demirci, U. Toprak, Emre İnak, S. Yorulmaz","doi":"10.55507/gopzfd.1144369","DOIUrl":"https://doi.org/10.55507/gopzfd.1144369","url":null,"abstract":"Myzus persicae (Sulzer) (Hemiptera: Aphididae) is a polyphagous pest that causes significant losses in many crops. In the present study, the biochemical and molecular mechanism of acetamiprid resistance in a laboratory-selected Myzus persicae population of which the resistance ratios reached 57.5-fold were investigated. This study was conducted in the Isparta University of Applied Sciences, Agriculture Faculty, Department of Plant Protection in 2018 and 2020. Synergism, biochemical and molecular assays showed the absence of increased P450 activity in selected population. In addition, no point mutation in nicotinic acetylcholine receptor (nAChR), the target-site of neonicotinoids including acetamiprid, was detected in the selected population. These results suggests that high level of acetamiprid resistance might be developed via the mechanisms other than well-known mechanisms, such as increased P450 activity and target-site mutations. The population selected with acetamiprid showed decreased susceptibility to imidacloprid, sulfaxaflor, beta-cyfluthrin, and tau-fluvanite ranging from 1.54 to 4.76. Nonetheless, more studies are needed to support cross-resistance by Myzus persicae populations having different genetic backgrounds.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125238712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Balta, O. Karakaya, M. Yaman, H. Kırkaya, İzzet Yaman
Changes in ecological conditions in Turkey are among the rare countries where most plant species spread widely throughout the country, both economically and naturally. In this study on apple, which is one of the important fruit species with economic importance, the color characteristics, biochemical and sugar contents of some commercial apple cultivars grown in Çarşamba district of Samsun province were examined. Wide variations occurred in all parameters evaluated in the study among the cultivars. The fructose content of the cultivars was from 14.22 (Royal Gala) to 34.40 g 100 ml-1 (Fuji), glucose content was from 1.30 (Galaxy Gala) to 4.34 g 100 ml-1 (Fuji), and sucrose content were varied from 2.01 (Fuji) to 4.52 g 100 ml-1 (Granny Smith). The highest value in total sugar content was determined in Fuji cultivar with 40.75 g 100 ml-1. The highest total phenolics, total flavonoids and antioxidant activity (according to DPPH and FRAP) were 423.7 mg 100 g-1 (Granny Smith), 96.1 mg 100 g-1 (Fuji), 250.8 µmol 100 g-1 (Granny Smith) and 952.9 µmol 100 g-1 (Granny Smith), respectively. In the principal component analysis results, the first component was associated with a*, b*, hue angle, total phenolics, total flavonoids and antioxidant activity (DPPH and FRAP) and explained 59.4% of the total variation. The second component explained 36.4% of the total variation of the obtained data and was determined to be related to L*, chroma, glucose, sucrose, fructose, and total sugar properties. As a result, Granny Smith cultivar gave remarkable results in terms of biochemical properties and Fuji cultivar in terms of sugar content. It is thought that the results obtained may guide the researches to be made about apple in this region.
土耳其的生态条件发生了变化，是大多数植物物种在经济上和自然上在全国广泛传播的罕见国家之一。摘要以具有重要经济价值的苹果为研究对象，对三顺省Çarşamba地区几种商品苹果品种的颜色特性、生化特性和含糖量进行了测定。各品种间评价的所有参数均存在较大差异。各品种的果糖含量为14.22 g ~ 34.40 g 100 ml-1(富士)，葡萄糖含量为1.30 g ~ 4.34 g 100 ml-1(富士)，蔗糖含量为2.01 g ~ 4.52 g 100 ml-1(富士)。富士品种的总糖含量最高，为40.75 g 100 ml-1。总酚、总黄酮和抗氧化活性(DPPH和FRAP测定)分别为423.7 mg 100 g-1(青桃)、96.1 mg 100 g-1(富士)、250.8µmol 100 g-1(青桃)和952.9µmol 100 g-1。主成分分析结果显示，主成分与a*、b*、色相角、总酚类物质、总黄酮和抗氧化活性(DPPH和FRAP)相关，占总变异的59.4%。第二个分量解释了所获得数据的36.4%的总变异，并被确定与L*、色度、葡萄糖、蔗糖、果糖和总糖性质有关。结果表明，“史密斯奶奶”品种的生化性能和“富士”品种的含糖量均有显著差异。研究结果对该地区苹果的研究具有一定的指导意义。
{"title":"Sugar and Biochemical Composition of Some Apple Cultivar Grown in the Middle Black Sea Region","authors":"M. Balta, O. Karakaya, M. Yaman, H. Kırkaya, İzzet Yaman","doi":"10.55507/gopzfd.1113864","DOIUrl":"https://doi.org/10.55507/gopzfd.1113864","url":null,"abstract":"Changes in ecological conditions in Turkey are among the rare countries where most plant species spread widely throughout the country, both economically and naturally. In this study on apple, which is one of the important fruit species with economic importance, the color characteristics, biochemical and sugar contents of some commercial apple cultivars grown in Çarşamba district of Samsun province were examined. Wide variations occurred in all parameters evaluated in the study among the cultivars. The fructose content of the cultivars was from 14.22 (Royal Gala) to 34.40 g 100 ml-1 (Fuji), glucose content was from 1.30 (Galaxy Gala) to 4.34 g 100 ml-1 (Fuji), and sucrose content were varied from 2.01 (Fuji) to 4.52 g 100 ml-1 (Granny Smith). The highest value in total sugar content was determined in Fuji cultivar with 40.75 g 100 ml-1. The highest total phenolics, total flavonoids and antioxidant activity (according to DPPH and FRAP) were 423.7 mg 100 g-1 (Granny Smith), 96.1 mg 100 g-1 (Fuji), 250.8 µmol 100 g-1 (Granny Smith) and 952.9 µmol 100 g-1 (Granny Smith), respectively. In the principal component analysis results, the first component was associated with a*, b*, hue angle, total phenolics, total flavonoids and antioxidant activity (DPPH and FRAP) and explained 59.4% of the total variation. The second component explained 36.4% of the total variation of the obtained data and was determined to be related to L*, chroma, glucose, sucrose, fructose, and total sugar properties. As a result, Granny Smith cultivar gave remarkable results in terms of biochemical properties and Fuji cultivar in terms of sugar content. It is thought that the results obtained may guide the researches to be made about apple in this region.","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122064155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mesut Ersin Sönmez, T. Güleç, E. Savaşlı, O. Önder, N. Aydın
{"title":"The Effect of Rye Translocation on Grain Yield and Agronomic Properties in the Recombinant Inbred Line Population Developed in Bread Wheat","authors":"Mesut Ersin Sönmez, T. Güleç, E. Savaşlı, O. Önder, N. Aydın","doi":"10.55507/gopzfd.1119650","DOIUrl":"https://doi.org/10.55507/gopzfd.1119650","url":null,"abstract":"<jats:p xml:lang=\"tr\" />","PeriodicalId":413905,"journal":{"name":"Journal of Agricultural Faculty of Gaziosmanpasa University","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129633676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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