خيارات البحث
النتائج 41 - 50 من 434
Kısıntılı Sulamanın Greyfurt Bahçesinde Su Kullanımı, Verim, Verim Öğeleri ve Meyve Niteliğine Etkisi
2020
Uğur Kekeç | Bülent Özekici
Araştırma, Çukurova Üniversitesi Ziraat Fakültesi Araştırma ve Uygulama Çiftliğinde bulunan Rio Red altıntop ağaçları kullanılarak 2011 ve 2012 yıllarında yürütülmüştür. Çalışmada, deneme bahçesindeki mevcut sulama proğramının değerlendirilmesi ile ağaçlara farklı düzeylerde uygulanan sulama suyu miktarının, verim ile meyve kalite özellikleri (pomoloji) üzerine etkilerinin belirlenmesi amaçlanmıştır. Denemede damla sulama sistemi ile 3 farklı miktarda sulama suyu uygulanmıştır (I100); (I70); (I50). Her iki yıl dikkate alındığında sulama suyu miktarları, 332,48 mm (I100) ile 128,69 mm (I50) arasında değişmiştir. Gerçek bitki su tüketimleri ise su bütçesi yöntemine göre 935,6 mm (I100) ile 729,9 mm (I50) arasında gerçekleşmiştir. Denemenin birinci yılında, sulama konularına ilişkin verimler, ağaç başına, 306 (I70) ile 330 (I50) kg, ikinci yıl ise ağaç başına ortalama verim değerlerinin sulama konularına göre, 59,6 kg (I100) ile 108,5 kg (I50) arasında değişmiştir. Toplam su kullanma randımanları, 2011 yılında, WUEET 5,18 kg m-3ile 6,34 kg m-3, 2012 yılında ise; 0,52 kg m-3ile 1,74 kg m-3arasında elde edilmiştir. Sulama suyu kullanma randımanları, 2011 yılında, WUEI 15,85 kg m-3ile 30,69 kg m-3, 2012 yılında ise; 2,17 kg m-3ile 14,27 kg m-3değerleriarasında değişmiştir. Denemenin birinci yılında ortalama suda çözünen kuru madde miktarları, %10,22 (I100) ile %12,91 (I50) arasında; ikinci yılında ise %12,41 (I100) ile %13,47 (I50) arasında değişmiştir. Bu çalışma kapsamında sulama konularının meyve verimine etkilerinin istatistiksel olarak önemli olmamasından dolayı çifçilere su tasarrufu sağlamak amacıyla yöre için su kısıntısı önerilebilir.
اظهر المزيد [+] اقل [-]Bioactive Peptides in Milk and Milk products, Antimicrobial Properties and Effects on Human Health
2020
Selda Bulca | Burcu Güvenç
In recent years, apart from the nutritional values of foods, functional properties have also gained importance. Bioactive peptides are the fragmentation products of proteins that have a positive effect on human health. Bioactive peptides in cow's milk are released as a result of hydrolysis of milk proteins with proteolytic enzymes. Bioactive peptides have biochemical and physiological properties such as immune regulation, mineral binding, antimicrobial, antihypertensive, opioid, anti-oxidative, anti-ulcerative, antithrombotic, antitumor and apoptosis. In this review, bioactive peptides in milk and milk products and their antimicrobial properties and effects on human health were evaluated.
اظهر المزيد [+] اقل [-]Antioxidant and Oxidant Status of Endemic Helleborus vesicarius
2020
Falah Saleh Mohammed | Gülcan Çınar | Serap Sahin Yigit | Hasan Akgül | Muhittin Dogan
Plants are important antioxidant sources. In our study, total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI) of endemic Helleborus vesicarius Aucher ex Boiss.were determined. The aerial parts of the plant samples were dried and extracted with ethanol (EtOH). TAS and TOS values of plant extract were determined using Rel Assay Diagnostics kits. As a result of the studies, the TAS value of H. vesicarius was determined 5.548±0.23, the TOS value was 13.778±0.119 and the OSI value was 0.249±0.009. In this context, the plant has been shown to have significant antioxidant potential.
اظهر المزيد [+] اقل [-]Determination of Nutritional Values of Seedling Pumpkin (Cucurbita pepo L.) Residues Silage
2020
Abdurrahman Pirinç | Abdullah Özbilgin | Oğuzhan Kahraman | Esad Sami Polat
In this study, nutritional values of silages made from seed pumpkin residues were investigated. Pumpkin residues collected from Konya region were put into silo in vacuum sacks with various additives. As additives, straw, inoculant containing lactic acid bacteria or a mixture of both in certain proportions were used. After the silos were opened, their pH was determined and then samples were taken to determine the essential fatty acid compositions and nutrient analyses were done. Natural pumpkin (Group 1), natural pumpkin + inoculant (100ppm) (Group 2), withered pumpkin + 15% straw (Group 3), withered pumpkin + 15% straw + inoculant (100ppm) (Group 4) such that the fourth group is formed. Dry matter values of pumpkin groups are Group 1 7.89%, Group 2 6.62%, Group 3 12.22% and Group 4 12.25% respectively. Their pH is 3.78 in Group 1, 3.71 in Group 2, 3.86 in Group 3 and 3.82 in Group 4. The crude protein ratio in the experimental groups was determined in the highest Group 2 (14.97%) and the lowest in Group 3 (10.56%). NDF rate was determined in the highest group 4 (49.74%) and the lowest in Group 2 (28.51%). In addition, the highest ADF rate was determined in Group 4 (37.91%) and the lowest in Group 2 (24.90%). There was a statistically significant difference between the research groups in terms of ethanol content. Acetic acid and propionic acid content was found statistically significant between groups. As a result, when the pumpkin residues are silaged, it can be used as feed material in animal feeding. In addition, it can be said that pumpkin residues can be evaluated in different areas in the high amount of Ethanol content resulting from silage production.
اظهر المزيد [+] اقل [-]Novel Single Nucleotide Polymorphisms of Lysozyme (C-Type) Gene in Donkey (Equus Asinus) Populations in Marmara Province of Turkey
2020
Raziye Işık
The major antimicrobial proteins in donkey milk are lysozyme, lactoferrin, lactoperoxidase and immunoglobulins. Lysozyme has an important role in the host defense by way it inhibits the pathogenic bacteria. The aim of this study is to investigate the Lysozyme (LYZ) gene polymorphism in 82 donkeys reared in Thrace region of Turkey. 716 bp long partial 5’ UTR, exon 1, intron 1, exon 2 regions of LYZ gene were amplified and PCR products were analyzed via DNA sequencing. Three novel single nucleotide polymorphisms (SNPs) were identified as g.1782775A>G, g.1782924A>G and g.1782960T>C in the first intron of LYZ gene. The partial DNA sequence of LYZ gene in donkeys was reported in the present study and sequences of LYZ were entered to NCBI Genbank database with the accession number: MK984689-MK984692. This SNP may have an effect on immune system and milk traits in donkeys and additional studies are needed to confirm this assumption for donkey breeding.
اظهر المزيد [+] اقل [-]Impact of Pasteurization Process on the Quality and Marination Properties of Onion Juice
2020
Hande Demir | Mustafa Kemal Yıldız | İsmail Becerikli | Sevcan Unluturk | Zehra Kaya
This study aims to compare UV-C irradiation and conventional heat treatment to produce pasteurized onion juice used as a meat marinating agent. The process conditions maximizing the inactivation of target microorganism Escherichia coli K-12 were; 0.5 mm sample depth, 30 min irradiation, 7.5 mW/cm2 UV incident intensity for UV-C and, 74.5°C and 12 min for heat treatment. Except pH and non-enzymatic browning index, differences between physicochemical properties of raw, UV-C and heat-treated onion juices were significant. Springiness and chewiness of unmarinated beefsteaks were higher compared to the ones marinated with the fresh and pasteurized onion juice (UV-C and heat). Pasteurization of onion juice (UV-C and heat) did not significantly affect general liking scores compared to beefsteaks marinated in untreated onion juice.
اظهر المزيد [+] اقل [-]Attitudes and Behaviours of Farmers in Using of Pesticides in Çarşamba District of Samsun
2020
Aybike Bayraktar | Ismet Boz
While the use of pesticides in plant production has positive effects on yield and quality, it has negative effects on human and environmental health. The environment is polluted by the intense and unconscious use of chemicals in agriculture, and the absence of environmentally friendly agricultural methods. This causes problems in the long term, such as reduced biodiversity and disruption of natural balance. This study is important because there are many problems such as the producers' failure to effectively apply methods of combating diseases, pests, and weeds in agricultural production, the use of unnecessary and wrong doses of pesticides, and the methods other than chemical control are not preferred. The aim of this study was to examine the attitudes and behaviors of farmers towards use of pesticides in Çarşamba District of Samsun Province. For this purpose, a survey was conducted with 112 farmers determined by stratified sampling method. According to the findings, most of the farmers in the region do not prefer other methods different form chemical control methods. While farmers found the effectiveness of pesticides at a medium level, they found the price levels of pesticides high. While there is a perception that over-using pesticides adversely affects the environment, biological control methods are not known enough. Various research, education, and extension studies should be carried out for farmers to use pesticides more consciously, and to apply methods other than chemical control.
اظهر المزيد [+] اقل [-]Some Quality Properties, Mineral and Heavy Metal Composition of Wild Fruit Traditional Marmalades
2020
Ayla Arslaner | Mehmet Ali Salık
In this research, some physicochemical and microbiological characteristics and mineral compositions of marmalades produced by traditional method using Berberis integerrima Bunge (purple barberry), Berberis vulgaris L. (pink barberry), Rosa pimpinellifolia L. (black rosehip), Rosa canina L. (pink rosehip), Malus sylvestris Miller (sour apple), and Vaccinium corymbosum L. (blueberry) wild fruit naturally grown in Bayburt and Trabzon provinces were determined. As a result of the research; pH 2.56-4.18, titration acidity (in terms of citric acid) 0.62-3.40%, dry matter 53.65-64.90%, water soluble dry matter 52.28-64.53%, water activity 0.818-0.894 and HMF (5-hydroxymethyl-2-furfural) were detected in the range of 5.81-53.40 mg/kg. As a result of microbiological analysis, total aerobic mesophilic bacteria, coliform group bacteria and yeast-mold were not detected in any of the samples. In the marmalade samples, the macro minerals Ca, K, P and Mg are ranged from 23.56-425.12 mg/kg, 1275.74-5918.10 mg/kg, 21.98-921.26 mg/kg and 125.50-776.23 mg/kg, respectively. Of the micro-minerals Fe 4034.85-22346.74 µg/kg, Mn 531.63-15065.91 µg/kg, Zn 345.40-6250.76 µg/kg, B 2872.99-7300.37 µg/kg, and Ba were found between 689.31-6455.24 µg/kg. The results of heavy metal analysis showed that marmalade samples were within reliable limits. It is concluded that these fruits, which are not usually consumed as table, but have rich mineral composition, characteristic taste and pleasant aroma, can be evaluated in marmalade production. In the years when the yields of wild fruits are high, it can be processed into products with long shelf life such as jam and marmalade and converted into added value can contribute to the regional economy.
اظهر المزيد [+] اقل [-]Analysis of Developments in the Dairy Cattle Sector of Turkey
2020
Arif Semerci | Ahmet Duran Çelik | Eylem Durmuş
Husbandry has a special importance for people who live in rural areas in terms of agricultural income and profitability due to some contributions such as; providing cash flow throughout the year, product processing, balanced usage of labour force, and risk diversification. According to FAO data of 2017, Turkey’s ratio in the world’s total cattle existence was 0.99%, and it had a 2.78% ratio in total milk production. According to TSI data between 2004 and 2018; the number of total cattle reached 17.042.506 with a ratio increase of 4.62%, and the annual milk production amount reached 20.036.877 tons with a ratio increase of 7.23%. Within the period of time that is mentioned above, the contribution ratio of culture breed cattle in milk production reached 61.39% from 33.63%. However, in terms of milk cow productivity, Turkey is the 57th in the world. The cities of Konya, İzmir, Erzurum, Balıkesir, and Diyarbakır provide 21.74% of Turkey’s total milk cow existence, and 22.77% of the milk production total. In terms of agricultural subsidies which are provided by Ministry of Agriculture and Forestry, husbandry took a share of 25.79% from the 14.5 billion TL total agricultural subsidies in 2018. According to the research results, directly or indirectly, husbandry contributes to decreasing development level differences between regions, and it helps to improve enterprises’ income levels in rural areas.
اظهر المزيد [+] اقل [-]Organic Grape Production and Producer Status in Adıyaman Province; Example of Besni District
2020
Aybüke Kaya | Songül Bay
This study was carried out to evaluate the socio-economic structure and organic farming activities of grape producers in Besni. A face-to-face survey was conducted with producers producing organic grapes. Data were obtained by interviewing a total of 50 producers. The number of organic products grown between 2005 and 2018 increased from 205 to 213 in Turkey. The number of producers engaged in cultivation in this area has increased more than 5 times compared to 2005. It reached nearly 80.000 in 2018. The area of organic vegetable production increased from 203.811 to 626.884 hectares in Turkey. While the production area increased 2.5 times, the production amount increased almost 4 times. Today, a variety of products in organic vegetable production, planting area, the number of farmers has increased in Turkey. The findings were obtained education level of the producers, the number of individuals in the family, record keeping, annual total income, newspaper reading, grape yield, grape cultivation area, property and rental land, credit usage, weed control, organic farming knowledge level, organic farming by using variables such as thoughts and grape variety. There are serious differences between conventional agriculture and organic farming. The family structure is effective in production activities. It has been determined that the thoughts of organic farming have changed depending on the age and experience of the producers. Organic grape producers have turned to organic farming due to their desire to sell their products at higher prices with state supports. Also, it has been suggested that organic farming is important in terms of the sustainability of living life all over the world. Increasing producer income and environmental awareness are among the main reasons for the transition to organic farming.
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