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Yapay Aydınlatma Şiddeti ve Süresinin Hidroponik Tekniği İle Yetiştirilen Fesleğen Bitkisinin Verimine Etkisi Full text
2024
Uğur Yegül | Burak Şen
Bu çalışmada aydınlatma veriminin en yüksek olduğu spektrum olan soğuk beyaz ve tam spektrum ışık kullanılarak farklı ışık şiddetleri ve sürelerinin geniş yeşil ve kırmızı yapraklı fesleğen bitkilerinin (Ocimum basilicum) gelişimi ve verimi üzerindeki etkisi araştırılmıştır. Toplamda 13,5 m2 lik alanda gerçekleştirilen çalışmada, 27 ayrı, 0,5’ er m2’ lik deneme parsellerinde farklı yapay aydınlatma şiddeti ve süreleri uygulanarak azot denge indisi (NBI) ve hasat sonrasında elde edilen verim değerlerinin arasındaki ilişkiler istatistiksel olarak değerlendirilmiştir. Çalışmada aydınlatma şiddeti faktörünün (AŞF) üç seviyesi, fotosentetik foton akı yoğunluğu (PPFD) olarak sırasıyla, 165,6 µmol m-2 s-1, 248,4 µmol m-2 s-1 ve 331,2 µmol m-2 s-1 ile aydınlatma süresi faktörünün (ASF) üç seviyesi (12-16-20 saat gün-1) denenmiştir. Elde edilen sonuçlara göre geniş yeşil yapraklı fesleğen bitkisi için 331,2 µmol s-1 aydınlatma şiddeti faktörü ve 20 saat gün-1 aydınlatma süresi faktörlerinde, geniş kırmızı yapraklı fesleğen bitkisi içinse 331,2 µmol s-1 aydınlatma şiddeti faktörü ve 12 saat gün-1 aydınlatma süresi faktörlerinde en yüksek verim değerleri elde edilmiştir.
Show more [+] Less [-]Effect of Sorbitol Spraying on Chlorophyl, Total Phenolic and Flavonoid in Fragaria ananassa. Duch. cv. Albion Leaves Full text
2024
Beril Kocaman
Strawberry (Fragaria × ananassa Duch.) is one of the most widely consumed and cultivated fruits worldwide. Sorbitol plays a role in plant responses to many biotic and abiotic stresses. In this research, we intended to understand the effect of sorbitol spraying on the bioactive compounds of strawberry leaves. The application of sorbitol at different concentrations (0, 25, 50 mM and 75 mM) greatly improved strawberry characteristics such as total chlorophyll, chlorophyll a and b, carotenoids, and total phenolics. As sorbitol concentrations increased, chlorophyll a and chlorophyll b values increased in the samples taken during the fruiting period and higher values were obtained. The carotenoid content increased by approximately 189.49% and the total phenolic content increased by 30.85% in strawberry plants treated with sorbitol compared with the control. Supply of sorbitol decreased flavonoid content. The results indicate that sorbitol treatment has no inhibitory influence on the overall growth of strawberries. Among the biochemical parameters analyzed, chlorophyll, phenolic, and carotenoid contents increased, whereas flavonoid content decreased with sorbitol application.
Show more [+] Less [-]Design, Fabrication and Preliminary Testing of a Small-Scale Cassava Starch Extraction Machine Full text
2024
Promise Etim | Dominic Ekpo | Inemesit Edem Ekop | Joseph Edet Bassey | Okon Joe Ononokpono | Odudu Gabriel Udobong
A cassava starch extraction machine was designed and fabricated to perform a quadruplet action of grating, washing, sieving and separation. The study was necessitated based on concerns that most locally manufactured cassava processing machines are without provision for the extraction of starch. Food processors mainly depend on the manual pressing of cassava to obtain starch and this has significantly increased the cost of the product in the local market. Materials for construction were locally sourced and the machine was powered by a 2 hp electric motor through a v-belt-pulley transmission system and operating at a speed of 547 rpm. Fresh cassava tubers were harvested from Ikot Akpaden, a rural community in Mkpat Enin, Akwa Ibom, South-South of Nigeria, and used for the experiment. Results from the experiment showed that the quantity of wet starch extracted increased from 0.64 to 1.48 kg as the volume of water mixed with 2 kg of the product increased from 1 to 5 Liters. The rate of water usage and throughput capacity increased from 0.0005 to 0.0025 m3/kg and 35.29 to 46.75 kg/h respectively as volume of water increased. The optimum machine efficiency was 74%. The machine was fabricated at a cost of N 150,200 (equivalent of $100). Minimal time consumption, ease of operation and low production cost were some of the features that made the machine economically viable when compared to other conventional methods of extracting starch from cassava.
Show more [+] Less [-]Determination of Factors Affecting the Cumin Production Decision of Agricultural Enterprises: The Case of Konya Province Full text
2024
Fatma Çiftci
Turkey has vast agricultural lands and diverse climatic conditions, and different plant species can be cultivated. Especially, Konya province, located in the Central Anatolia Region, is an important agricultural centre in Turkey. Konya province, which has a polyculture production pattern, stands out in the production of medicinal and aromatic plants due to its favourable climatic conditions and soil structure. In Turkey, 26.33% of cumin, which is among the medicinal and aromatic plants, is produced in Konya province. This study aims to determine the factors affecting cumin production. For this purpose, 65 cumin producers determined by proportional sampling method were interviewed. The data obtained through these interviews were analysed by using the Analytic Hierarchy Process (AHP) method to determine the weights of the criteria affecting the cumin production decision of the agricultural enterprises. In the process of determining the criteria influencing the cumin production decision, the opinions of subject experts working in universities, public institutions and organizations and producers were taken. Among the criteria determined as yield, price, labour requirement, water requirement, ease of marketing, mechanisation, input costs, cultivation knowledge, soil structure and subsidies, the most important criterion was found to be price with 28.11%. Price criterion is followed by input cost 22.57%, water requirement 12.13%, yield 8.71%, cultivation knowledge 8.43%, subsidies 6.82%, ease of marketing 4.74%, soil structure 3.63%, mechanisation 2.54% and labour requirement 2.25%. It is thought that the solution of the mechanisation problem will make a significant contribution to cumin production as it will reduce the need for labour force.
Show more [+] Less [-]Contribution of Some Agro-Food Processing By-products to Chicken Sausages Full text
2024
Zeynep Akşit | Hüseyin Gençcelep
In this study, some agro-food processing by-products were evaluated as novel food ingredients, that meet the consumer's demand for natural ingredients, and their contributions to chicken-type sausage production were examined. Sausages were formulated with 3% quince waste (QS3), 3% grapefruit waste (GS3), 2% tomato waste (TS2), and 3% tomato waste (TS3). Other ingredients were fresh breast chicken meat, beef tallow, spice mix, ice, NaCl, and NaNO2. Proximate composition and sensory analyses were conducted before the storage. Water activity, pH, TBARS, purge accumulation, and microbiological analyses were performed during the storage. QS3, TS2, and TS3 treatments got appreciated (7.0-7.4 out of 10) sensory scores, while GS3 scored low acceptability (4.0 out of 10) points. Adding food waste significantly reduced purge accumulation; the average purge accumulation of the control sample was 3.70% which is approximately two times higher than food waste added samples. The average TBARS value of the control sample was determined as 0.31 mg MA/kg, and the food waste-added samples were found between 0.57-0.65 mg MA/kg during storage. Total mesophilic aerobic bacteria and yeast-mold load were higher in TS2 and TS3 products; microbial load and TBARS values of food waste affected the product quality. Also, water activity, microbial growth, and purge accumulation amount affected each other during storage.
Show more [+] Less [-]Sustainable Supplier Selection Using Fuzzy AHP (AHP-F) and Fuzzy ARAS (ARAS-F) Techniques for Fertilizer Supply in the Agricultural Supply Chain Full text
2024
Hüseyin Fatih Atlı
Implementing the right strategies in the agricultural supply chain in the supply of seeds, pesticides, fertilizer, energy, fuel and agricultural mechanization tools and equipment has a great role in increasing agricultural productivity. The main purpose of the study is to rank and evaluate alternatives in choosing a sustainable fertilizer supplier in the agricultural supply chain by using AHP-F and ARAS-F techniques. In an environment of uncertainty and complex supply chain structure, multi-criteria decision making (MCDM) methods are widely used to solve supplier selection problems. In this study, the importance levels and weights of the criteria in the selection of sustainable fertilizer suppliers were measured by the AHP-F method. The criteria that are important for fertilizer supplier selection were evaluated by taking expert opinions, the uncertain and uncertain opinions of the decision makers were modeled with the AHP-F approach and the weights of the criteria were determined. Among the criteria, resource consumption (FSC05) has the highest weight. Then, alternative rankings were obtained with the ARAS-F method. Fertilizer supplier alternatives in the agricultural supply chain were ranked with the ARAS-F method, using the criterion weights found with AHP-F. In the ranking of alternatives, alternative fertilizer supplier FS03 ranked first with the highest value. This study provides a resource for businesses and other stakeholders to make decisions regarding sustainable fertilizer supplier selection.
Show more [+] Less [-]Effect of Heat Treatment, Water and Vinegar Soaking on Protein and Phytic Acid Levels in Hemp Seed Meal Full text
2024
Gülşah Kanbur
Hemp plants are notable for their climate resilience, and hempseed meal (HSM) is a potential high-protein feed for poultry. However, HSM has high levels of the antinutritional factor phytic acid (PA). This study aimed to evaluate the effects of heat and soaking treatments on the protein and PA content of HSM. HSM was obtained through cold pressing of whole hempseed and then subjected to heat treatment at 70°C for 24 hours. Soaking treatments involved water, water-vinegar mix, and vinegar for 1, 7, and 24 hours, followed by drying and analysis of PA and protein content. Results indicated that heating increased PA content without affecting protein levels. Soaking duration did not significantly alter protein content but did affect PA levels, with 24-hour soaking significantly increasing PA compared to 1-hour and 7-hour durations. The soaking material also influenced PA content: water soaking increased PA, while a 1-hour vinegar-water mix and 7-hour vinegar soaking significantly reduced PA. The highest PA concentration occurred with 24-hour water soaking. The protein content was highest with 7-hour vinegar soaking. In conclusion, acidic soaking solutions, particularly vinegar and vinegar-water mix, effectively reduced PA in HSM without protein loss.
Show more [+] Less [-]Pollutant Effects and Management of Animal Manure Full text
2024
Fatma Nur Kılıç | Osman Sönmez
Animal manure pollution constitutes a significant environmental issue, particularly in areas with intensive livestock activities. Manure, due to its various pollution loads such as nitrogen, phosphorus, heavy metals, and pathogens, can have adverse effects on soil, water resources, and air quality. Among manure management practices, sustainable methods such as composting, biogas production, and advanced treatment techniques stand out. These methods offer effective solutions for reducing the environmental impact of manure, while also holding the potential to be valued as valuable resources for agriculture and energy production. The growth in the global population along with urbanization has intensified the demand in commerce, industry, and agriculture sectors. This need to satisfy the supply-demand dynamics has led to increased production activities, subsequently giving rise to significant waste management challenges. This review examines the environmental impacts of pollution originating from animal manure, current management strategies, and research developments (R&D) in this field.
Show more [+] Less [-]GST Enzyme Content of Wheat Landraces and Comparison with Modern Varieties Full text
2024
Aziz Öz | Alaettin Keçeli
The development of high-yielding modern wheat varieties to feed the growing population has had a negative impact on the production of ancestral and landrace crops. The use of modern varieties, which are very deficient in vitamins, minerals, antioxidants, and flavonoids, has caused people to turn to old varieties due to health problems that arise over time. In this study, which aimed to determine the glutathione S-transferase (GST) enzyme activity of registered varieties and landraces, the differences between the protein values and GST enzyme activity values of wheat were found to be statistically significant. When protein values were analysed among wheat varieties, einkorn wheat had the highest value with 15.53 mg/ml, and KUNDURU-1149 had the second highest value with 13.52 mg/ml. The lowest protein values were found in wheat landraces. Lr-4 had the highest GST enzyme activity with 299.7 mmol/min/mg protein and Lr-10 with 265.3 mmol/min/mg protein. A negative and high correlation was found between wheat protein values and GST enzyme activity, and it was determined that landraces were prominent in terms of GST enzyme activity.
Show more [+] Less [-]Çanakkale İli Ezine İlçesi Geyikli Beldesinden Toplanan Salicornia europaea Popülasyonunda Bazı Kalite Parametrelerinin Belirlenmesi Full text
2024
Tolga Sarıyer | Murat Şeker
Çanakkale Ezine İlçesine bağlı olan Geyikli beldesi Çanakkale’nin batısında bulunmaktadır. Yörede, doğadan toplanarak tüketilen pek çok bitkiden birisi olan Deniz Börülcesi (Salicornia europaea); Türkiye’de farklı bölgelerde de toplanıp sebze olarak kullanılmaktadır. Türkiye’de aktif olarak kültüre alınmamış olmakla birlikte bazı bilimsel denemelerde yer almıştır ve önemli bir halofittir. Deniz börülcesi pek çok besleyici özelliği olduğuna inanıldığından dolayı sık olarak tüketilmekte ve ticarete konu olmaktadır. Bu bitkinin yöreden toplanıp önemli özelliklerinin değerlendirilmesi bölgenin tarımsal anlamda gelişimi ve bitki ile yapılabilecek diğer tarımsal çalışmalara yol göstermesi açılarından önemli bir konudur. Çalışmanın amacı Çanakkale Ezine İlçesi, Geyikli beldesinde doğal ortamından toplanan S. europaea bitkisini askorbik asit, toplam karotenoid, suda çözünen kuru madde, pH, titre edilebilir asitlik parametreleri ve luteolin, apigenin, naringin, kateşin flavonoidleri açısından incelemektir. Böylece bölge tarımına katkıda bulunmak ve bu bitki ile yapılabilecek çeşitli çalışmalara yol göstermektir. Çalışma sonucunda değerlendirilen S. europaea popülasyonunun flavonoid içeriklerinin çoktan aza sırasıyla apigenin (649,461 mg/kg), naringin (117,51 mg/kg), kateşin (13,574 mg/kg) ve luteolin (0,984 mg/kg) olarak sıralandığı belirlenmiştir. Bunun yanı sıra yüksek bir suda çözünen kuru madde (°Briks) içeriğine (%11,7) sahip olduğu belirlenmiştir.
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