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Toprak Hidrolik İletkenlik Ölçümünün Atölye Koşullarında Modellenmesi Full text
2021
Cafer Gencoglan | Serpil Gençoğlan
Bu çalışmanın amacı, Programlanabilir Lojik Kontrol (PLC), basınç transduseri ve motopomp kullanarak toprak hidrolik iletkenliğini ölçen sistemi atölye koşullarında modellemektir. Çalışmada, uzunluğu 2 m ve çapı 100’lük bir plastik boru, burgu deliğine benzetmek amacıyla hazırlanmıştır. Ayrıca PLC ve modülü kullanılarak bir set oluşturulmuştur. Hidrolik iletkenlik ölçüm sisteminde, burgu deliği yöntemi (burgu deliği tabanı geçirimsiz tabakanın üstünde kalan) kullanılmıştır. Burgu deliği eşitliği kullanılarak CODESYS-ST dilinde sistemin programı yazılmış ve PLC’ye yüklenmiştir. Elle (ESY) ve PLC (PLCSY) ile ölçülen boru (burgu deliği) içindeki su yükleri arasında regresyon analizi sonucu PLCSY = 0,99ESY + 1,69 (R² = 1) şeklinde bir eşitlik elde edilmiş ve bu iki veri setinin Ortalama Mutlak Yüzde Hata (MAPE)'sı %0,41 olarak hesaplanmıştır. Her bir hidrolik iletkenlik ölçüm süresi, vananın tam açık olduğunda yaklaşık 5 dak., yarım açık olduğunda 6 dak. ve üçte bir açık olduğunda ise 8 dakika olarak belirlenmiştir. Boru tabanından statik düzeyine uzaklık (d, cm) 1., 2. ve 3. vana açıklıklarında sırasıyla ortalama 122,83, 123,91 ve 123,7 cm olarak ölçülmüştür. İlk çeyrek bölümde su yükünün 20’den 25’e, 25’den 30’a, 30’dan 35’e ve 35’den 40’a yükselmesi için vana açıklıklarına göre geçen süre ortalaması sırasıyla 4,4, 6,0 ve 26,1 sn olarak tespit edilmiştir. Hidrolik iletkenlik değerleri vana açıklıklarında sırasıyla ortalama 18,6, 13,2 ve 3,1 cm/saat olarak hesaplanmıştır. Ölçülen veriler bir SD karta kaydedilmiştir. Bu işlemlerin tamamı otomatik olarak yapılmıştır. Bu sistemin, hidrolik iletkenliği arazi koşullarında doğru, ekonomik ve hızlı ölçeceği beklentisi yüksektir ve arazi koşullarında test edilmelidir.
Show more [+] Less [-]Niğde İl Kaliteli Süt Üretimi Optimum Toplama ve Taşıma Planlaması Full text
2021
Davut Yeşil
Bu çalışmada, Niğde İli Damızlık Sığır Yetiştiricileri Birliğine üye büyükbaş hayvancılık işletmelerinden sabah ve akşam toplayarak işleme tesislerine sattığı sütün kalite değerlerinin korunmasını esas alan bir toplama ve taşıma modelini belirlemek amaçlanmıştır. Yapılan çalışma kapsamında birliğe üye 19 hayvancılık işletmesinden 12 ay boyunca ayda 2 kez çiğ süt numuneleri alınmış ve birliğin laboratuvarında teknik personellerce analizleri yapılmıştır. Analizlerde yağ, protein, yağsız kuruma madde, toplam kuru madde ve laktoz değerlerinin yanı sıra somatik hücre ve toplam bakteri sayısı ölçüm değerleri toplanmıştır. Analizler sonucunda sütler toplam bakteri yüküne göre dört farklı tipe ayrılmıştır. Hayvancılık işletmelerinin coğrafi konumları ve belirlenen süt tipine göre toplama rotaları oluşturulmuştur. Bu kapsamda önerilen model “Tank Bazında Bölünebilir Talepli Matematiksel Model” olup GAMS 23.4.3 versiyonunda CPLEX 12.1.0 Solver’ı kullanılarak çalıştırılmış ve optimum süt toplama rotaları oluşturulmuştur. Planlama 19 süt üreten büyükbaş hayvancılık işletmesinden Toplam Bakteri Sayısı esasına göre belirlenen 4 farklı tipteki sütün Toplama Merkezine belirli kısıtlar altında taşınmasını mümkün kılmaktadır. Son yıllarda yaşanan süt arzındaki artış işleme tesislerinin daha seçici davranmalarına imkân vermiştir. Bunun sonucu olarak daha temiz ve kaliteli sütü alma konusundaki kriterleri artırmıştır. Ayrıca bu işletmeler kalite değerleri yüksek süte daha fazla ücret ödemeyi de kabul etmektedirler. Niğde Damızlık Sığır Yetiştiricileri Birliği’nin işleme tesisleri ile yaptığı kalite bazlı sözleşmeler sonucu yeni toplama modellerini uygulanması zorunlu hale gelmiştir. Bundan sora yapılacak çalışmalarda hayvancılık işletmesinden alınan sütün nihai ürün olarak tüketiciye gidinceye kadarki süreçte izlenebilirliği oldukça önemli bir çalışma konusu olacaktır.
Show more [+] Less [-]Future and Prospect use of Pyrethrum (Chrysanthemum cinerariifolium) as Part of the Integrated Pest and Disease Management (IPDM) Tool in Turkey Full text
2021
Flavien Shimira | Senem Uğur | Şamil Muhammet Özdemir | Yeşim Yalçın Mendi
Nowadays, immediate environmental friendly solutions such as the use of biopesticides and other methods to control and manage pests are well needed. They are imperative due to the continuous accumulation of toxic residues from synthetic insecticides into the environment, the contamination of global agro-ecosystem and resistance of certain insects and pathogens. The global renewed interest of botanical pesticides does not leave aside Turkey. Thus, many environmental reports pointed out contaminations in different regions of Turkey by chemical pesticide residues, like lambda-cyhalothrin in some conventional grapes farming in the Aegean region. The use of botanical pesticides like Pyrethrin extracted from Pyrethrum’s flowers (Chrysanthemum cinerariifolium) is part of sustainable agriculture goals to reduce the incidence of pests and diseases without any alteration to the natural balance. The purpose of this review is to analyse and identify the possibilities of Pyrethrum production in Turkey. Various research works around the world were compiled and some key informants were correlated to existing researches in Turkey. Subsequently, it was found that the Black-Sea region of Turkey has great potential in the growing and industrial production of Pyrethrum by its weather patterns (temperatures, pluviometry and humidity) and soil characteristics. The region has a similar climate with the East-African high-lands well-known for Pyrethrum production. Thus, the country has shown great technological advances and the capacity to produce vegetative and disease-free clones for other ornamental plants by using tissue culture techniques. Therefore, the multiplication of high-quality vegetative clones of Chrysanthemum cinerariifolium and their maintenance can sustain commercial and long term production of Pyrethrum in Turkey.
Show more [+] Less [-]Molecular Phylogenetic Analysis of Vicia L. (Fabaceae) Taxa Growing in the Southeastern Anatolia Region of Turkey: Based on Internal Transcribed Spacer (ITS) Full text
2021
Alevcan Kaplan | Alaattin Selçuk Ertekin | Esra Gündüzler
Leguminosae or Fabaceae is the third-largest flowering plant family and is important in terms of both food production and soil fertility. Wild Vicia species and the genetic diversity of the Southeastern Anatolia Region provide an invaluable resource for the improvement of cultivated temperate feed and legume crops. The rapid progress of technology in recent years has nowmade it possible to use modern techniques in phylogenetic studies and to examine plants in a greater detail using biochemical, cytological and molecular methods to supplement purely systematic studies. The use of molecular phylogenetic analysis is the most attractive alternative strategy for a more accurate identification of the species of the Vicia genus. In the current study, some Vicia L. taxa growing naturally in the Southeastern Anatolia Region were investigated using molecular phylogenetic analysis. Internal transcribed spacers (ITS) of nuclear ribosomal DNA were sequenced in order to study the phylogenetic relationships of Vicia L. taxa. Lathyrus inconspicuous L. and Lathyrus cassius Boiss. were used as an outgroup. The ITS area was determined to be approximately 479- 672 bp. The ITS sequences were submitted to the NCBI database and accession numbers obtained. The resulting tree clearly groups and separates the sect. Narbonensis, Ervilia, Peregrinae, Lathyroides, Vicia and Cracca species but was less able to distinguish species from sect. Hypechusa and Lentopsis. The data acquired were observed to be reliable in terms of solving the taxonomical problems of the Vicia L. taxa. The morphological distinctions are greatly supported by DNA sequence studies. The species-specific markers developed in this study are useful for early detection of targeted Vicia taxa and can act as a guide to the basic data required for the evolution of systematic breeding and conservation strategies, as well as for germplasm resources.
Show more [+] Less [-]Inducing High Temperature Shock at Onset of the Anthesis and Its Effect On Grain Quality of Wheat Cultivars Full text
2021
Mohammad Akmal | Rabia Goher
Uncertain heat shock by a rapid increase in temperature particularly at the critical growth stage affects plant productivity. The study aimed to assess qualitative changes in wheat grains when plant exposed to high temperature shock (HTS) at starting anthesis for limited durations (48, 72 and 96h). Selected wheat cultivars (Pirsabak-2005, Pakhtunkhwa-2015, Pakistan-2013, DN-84, P-2, P-12 and P-18) were exposed to extending HTS effective from anthesis in the field covering plants within plastic tents for a limited duration. The experiment was conducted in 2017-18 and 2018-19 at the Research Farm, the University of Agriculture Peshawar, Pakistan in a randomized complete block design, in three replications. Temperatures inside and outside plastic tents were manually noted. Two years mean data showed significant effects of HTS on the wheat grain quality. Imposed HTS for 48, 72 and 96h resulted in a reduction on grain amylose by 23, 39 and 48% and wet gluten by 16, 25 and 36%, respectively when compared with the control (i.e. no HTS). Contrary to this, as compared to the control treatment an increase noted in the grain amylopectin by 7, 11 & 17% and in the grain N-content by 13, 28 & 41% with imposing HTS extending to a duration of 48, 72 and 96h, respectively. The study concluded adverse effects of HTS at the anthesis stage on wheat grain quality disturbing amylose and amylopectin ratios, which latter on brought changes in floor structure and gluten elasticity. However, cultivar did differ to respond to the changes but have the option to choose the best one.
Show more [+] Less [-]The Effects of Pulsed UV Light Implementation on the Preservation Duration of Şavak Cheese Made from Raw Milk Full text
2021
Betül Yucel | Özlem Pelin Can
This study aimed to investigate the effect of pulsed UV light on the the preservation of the Şavak cheese. In this study, the samples of Savak cheese (average 2 cm) that were produced from raw milk were exposed to two-sided pulsed UV light. The microbial analysis (enterobacteria, psychrophilic aerob, lactic acid, sulphate reducing bacteria, S.aureus and yeast-fungus) and chemical analysis (acidity, pH and the number of thiobarbituric acid) of şavak cheese were performed during storage time (25 days) at 4°C. According to the results, spoilage was observed in the control group after ten days, Group 1 was the best in terms of microbiological quality. When experimental samples were compared to the control group, no statistically differences were observed in terms of TBA, acidity, and pH value.
Show more [+] Less [-]Yield Performance of Two HYV Transplant Aman Rice under Different Nutrient Management Practices Full text
2021
Rajib Sarker | Newton Chandra Paul | Md. Romij Uddin | Swapan Kumar Paul
The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, Bangladesh to investigate the influence of plant nutrient management on the yield performance of transplant Aman rice. The experiment comprised two Aman rice varieties viz. Binadhan-15 and Binadhan-16, and ten nutrient management viz. Recommended dose of inorganic fertilizer (RDF) Urea-TSP-MoP-Gypsum-ZnSO4 @ 150-110-70-60-5 kg ha-1, Cowdung @ 10 t ha-1, Poultry manure @ 5 t ha-1, Vermicompost @ 3 t ha-1 , 25% less than RDF + cowdung @ 5 t ha-1, 50% less than RDF + cowdung @ 10 t ha-1 , 25% less than RDF + poultry manure @ 2.5 t ha-1, 50% less than RDF + poultry manure @ 5 t ha-1, 25% less than RDF + vermicompost @ 1.5 t ha-1, 50% less than RDF + vermicompost @ 3 t ha-1. The experiment was laid out in a randomized complete block design with three replications. Binadhan-15 produced taller plants (97.86 cm), effective tillers hill-1 (6.28), grains panicle-1 (101.73), higher grain (3.58 t ha-1) and straw (4.99 t ha-1) yields compared to Binadhan-16. In case of nutrient management, 50% less than RDF + poultry manure @ 5 t ha-1 produced taller plants (101.1 cm), effective tillers hill-1 (7.07), grains panicle-1 (105.1) and grain yield (4.08 t ha-1). The highest grain yield (4.25 t ha-1) was recorded in Binadhan-15 fertilized with 50% less than RDF + poultry manure @ 5 t ha-1 and the lowest grain yield (2.28 t ha-1) was obtained in Binadhan-16 fertilized with vermicompost @ 3 t ha-1. So, it can be concluded that transplant Aman rice cv. Binadhan-15 fertilized with 50% less than RDF + poultry manure @ 5 t ha-1 appears as the promising practice to obtain the highest grain yield.
Show more [+] Less [-]The Effects of Foliar Vermicompost Applications on Yield and Some Yield Components in Triticale Varieties Full text
2021
Kamil Kara | Taşkın Erol | Aykut Şener
Vermicompost fertilizers have started to attract attention in agriculture last years. Various liquid vermicompost fertilizers are produced and used in agriculture and some of them known as vermiliquer, vermi leachate, vermi tea or vermicast with little differences. This study is aimed to determine the effects of foliar application of liquid vermicompost fertilizer on yield and some yield components on some Turkey triticale varieties under Central Anatolian conditions in Kırıkkale province during the growing period 2014-15 and 2015-16. Six different (control, 75, 150, 250, 350 and 450 cc da-1) liquid vermicompost fertilizer doses were applied by the foliar spraying method at the beginning and end of March in both years to the five Turkey triticale varieties (Alperbey, Mikham 2002, Tatlıcak 97, Karma 2000 and Ümranhanım). According to the results, plant height, grain number and grain yield in spike, grain yield per decare, harvest index and protein content results were found to be significant in fertilizer × variety × year interaction. There is also a statistically significant difference between thousand-grain weight and the variety x fertilizer doses interaction, and between varieties and fertilizer doses in terms of spike length. The positive effects of liquid vermicompost fertilizer doses, except 450 cc da-1, were determined in varieties. It was observed that a satisfactory yield can be obtained from 250 cc da-1 in the absence of nitrogen fertilizers as the top fertilizer. It could be deduced that 250-350 cc da-1 doses of vermicompost fertilizer can be applied in triticale based on varying ecological conditions and varieties in Central Anatolian ecological conditions.
Show more [+] Less [-]Relationships Between Some Physical-Chemical Properties and Nutrient Content of Wheat Cultivating Soils of Büyük Menderes Basin Full text
2021
Seda Erdoğan Bayram
This study was conducted to examine the soil fertility of the Büyük Menderes Basin, where wheat is widely cultivated. Soil samples were taken from 50 different points at a depth of 0-30 cm and various physical and chemical properties and amounts of nutrient elements were determined. With regard to the results of the study, the soils were generally sandy-clay-loam in texture, with slightly alkaline reaction, limy, rich in organic matter and showed no risk of salinity. The examined soils were found to be insufficient as 34% for total N, 14% for available K, 26% Mg, 10% Fe, 94% Zn and 98% Mn contents while all of the soils were determined as sufficient in terms of available P, Cu and Ca contents. When relationships between nutrient elements and soil physical-chemical properties were examined, negative correlations were found between soil pH and EC, organic matter, total N, available K, Zn; lime contents and available Mg, Fe, Cu; clay and available K and Mn contents. The positive correlations were found between EC and available K, Ca and Zn; organic matter % and total N, available K, Cu, Zn and Mn; sand % and available Mn; clay % and available Fe contents. Investigation of relationships between plant nutrients demonstrated that, there were positive correlations between total N and available K, Cu, Zn, Mn; available P and Zn; available K and Cu, Zn, Mn; available Ca and Fe; available Mg and Fe, Cu; available Fe and Cu, Mn; available Cu and Mn contents. The results of the study showed that attention should be paid to fertilization programs to fertilization with Zn and Mn, which were found to be insufficient in the greater part of the basin’s soils, and also to nitrogen deficiency is observed, as this directly affects the protein content of wheat.
Show more [+] Less [-]Usage of Natural Colour Indicators in Packaging Materials for Monitorization of Meat Freshness Full text
2021
Pelin Talu Özkaya | Seval Dağbağlı
Food packaging has an important role in protecting food against physical, chemical, and biological hazards during storage and distribution and in informing the consumer about the product. The packaging of foods that susceptible to chemical / microbiological spoilage especially such as meat, hence limited storage time, is even more important than other foods. In addition, the tendency of health-conscious consumers to be a part of real-time controls and monitoring food safety has led to the widening of this packaging perception. Hence, there have been innovative studies in recent years, especially aiming real time monitorization of freshness indicators. The focus of these studies is “colour indicators” used in the production of intelligent indicator films and colorimetric sensors within specific matrices to be integrated into packaging materials. The colour indicators change colour in the presence of certain metabolites released in food spoilage, which allows freshness to be determined. Colour substances used for this purpose can be natural or synthetic. Hence, natural pigments such as anthocyanin, curcumin, etc. have been more preferrable since being harmless to the health as well as increasing tendency of consumers to utilization from natural resources. In this review, information about natural colour indicators and studies in which these indicators are used to determine the freshness of meat in real time and visually are given.
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