Bu araştırmada, geleneksel yöntemle üretilen Erzincan dut pekmezinin bazı kalite özelliklerinin belirlenmesi hedeflenmiştir. Bu amaçla, 2018 ve 2019 yıllarında geleneksel olarak üretilen 10 adet dut pekmezi örneğinde, çeşitli fiziksel ve kimyasal özellikler ile antioksidan aktivite tespit edilmiştir. Pekmez örneklerinde; pH 4,86-5,17, titrasyon asitliği %0,53-0,85, toplam kuru madde %71,91-84,07, suda çözünür kuru madde %70,60-83,80, toplam kül %1,44-3,47, protein %1,47-3,19, su aktivitesi 0,59-0,75, 5-hydroxymethyl furfural (HMF) 5,70-72,62 mg/kg, toplam şeker %64,04-71,40, invert şeker %40,46-56,15, sakkaroz %7,76-26,59, kalori 262,01-294,54 kcal/100 g, viskozite 745-15275 cP, L* değeri 19,19-32,64, a* değeri 5,68-17,53, b* değeri 2,46-9,01, H° değeri 15,78-52,10 ve C* değeri 8,74-19,72 aralığında belirlenmiştir. Toplam fenolik madde (TFM), 1,1diphenyl-2picyrlhydrazyl (DPPH) antioksidan aktivite ve % inhibisyon değerleri ise sırasıyla; 3,92-10,05 mg GAE/g, 1,31-6,25 mg TE/g ve %7,96-30,69 aralığında bulunmuştur. Araştırma sonuçları değerlendirildiğinde; genel olarak pekmez örneklerinin besin değerlerinin yüksek olduğu, antioksidan ve TFM açısından iyi birer kaynak oldukları ve HMF miktarlarının TS 12001 Pekmez Standardı’nda bildirilen limitlerin oldukça altında kaldığı görülmektedir. Sonuç olarak, Erzincan yöresine ait geleneksel üretim tekniği ile doğal, besin değeri yüksek ve sağlığa yararlı pekmezlerin üretilebildiği ortaya çıkmıştır. Bu araştırma sonuçlarının, Erzincan geleneksel dut pekmezinin önemi, tanıtımı, değer kazanması ve koruma altına alınmasında katkı sağlayacağı düşünülmektedir.

In July 2017, three specimens of an alien fish species were caught by the amateur fishermen in Kızılırmak River at Sivas city center. One of the fish specimens was taken from the fishermen for ichthyologic examination. The morphological, metric (23 features) and meristic characters (13 features) of this specimen were determined. The alien fish is with ovoid shape and flattened laterally. Mouth is in a sub-ventral position. The tooth row is double. Teeth formula are 3,2 / 2,3 (at first row on maxil) and 2 / 2 (at second row on maxil), 3,3 / 3,4 (at first row on mandibul), 1,1 (at second row on mandibul). The number of rakers on the first gill arch is 33. The scale numbers in line lateral are 107 (on right side) and 103 (on left side). The number of branched rays of dorsal, anal, pectoral, and ventral fins are 14, 24, 14, and 7; respectively. As a result of the evaluation of morphological, metric and meristic characters, it was decided that the alien fish caught from Kızılırmak was Piaractus mesopotamicus (Holmberg, 1887) belonging to the Characidae family. This species is also called as the small-scaled pacu. P. mesopotamicus is not among to native fish fauna of Kızılırmak. It is a fish species which originated from South America and is a tropical freshwater fish. These alien fish specimens which were caught by the amateur fishermen, probably translocated from a hobbyist aquarium to this aquatic system. Both directly and indirectly, invasive fishes affect a wide range of native organisms from zooplankton to mammals across multiple levels of biological organizations ranging from the genome to the ecosystem. This study is the first scientific record for Sivas aquatic systems related to alien fish species.

This study aims to reveal the impact of exchange rate volatility on agricultural exports of Turkey by using the Autoregressive Distributed Lag Model. While quarterly time series data covering period of 2001: Q1 to 2018: Q4 were used to carry out analyses, Exponential Generalized Autoregressive Conditional Heteroscedasticity (1.1) is used to acquire exchange rate volatility series. The research findings showed that agricultural export is cointegrated with exchange rate volatility, producer price index and real effective exchange rate. Furthermore, our findings indicate that increases in real effective exchange rate have a statistically significant positive influence on the export volume whereas exchange rate volatility has negative impact on it.

This paper examines factors determining farmers’ adoption decision for improved maize varieties in the maize-common bean intercropping practices in two districts of East Hararghe zone, Eastern Ethiopia. It is based on data collected from 129 farm households using structured questionnaire. Descriptive results revealed that adopters of improved maize varieties had better food and nutrition security status. Furthermore, logit model output indicated that the decision to adopt improved maize varieties is influenced by location (district) dummy, education status of the household head, age of the household head, distance from the main road, and the number of plots owned. Major recommendations include improving the rural road infrastructure, educating and training farmers, organizing experience sharing events among farmers, and raising awareness about the food and nutrition security benefits of sustainable agricultural intensification practices like intercropping improved maize with improved common bean varieties.

In this study, it was aimed to determine the total carbohydrate (CHO), minerals and phenolic (total phenolic content, total flavanols, total flavonols, and anthocyanins) of grape and grape products. For this reason, fresh grapes (Kalecik Karası, Öküzgözü, Emir, and Narince), raisins (Karadimrit and Sultani Çekirdeksiz), wines (Kalecik Karası, Öküzgözü, Emir, and Narince), commercial red grape juice, molasses, and vinegar were used as research materials. In conclusion, total CHO contents in the samples were ranged from 0.14 to 48.37 g 100 g-1. In terms of the minerals, molasses was rich in K while the highest contents of P and Fe were found in vinegar. Raisin of Karadimrit contained the highest Ca content among all the samples tested. Not only total phenolic contents but also total flavanols, total flavonols, and anthocyanins were altered depending on the sample types and the varieties. As a result, it was determined that grape and grape products represent a potentially significant source of CHO, minerals, and phenolic.

For many seeds, cold press technology generates higher quantities of cakes than seed oils, which are concentrated in proteins. Valorization of the cakes could offer a viable strategy to manufacture protein fortified foods with comparable characteristics as the conventional products. Here, black cumin, grape seed and pumpkin seed protein concentrates were prepared based on an alkaline extraction-isoelectric precipitation technique. The influence of protein concentrate addition on the flour, dough and bread characteristics were investigated for textural profile, gluten quality and visual characteristics including color attributes. While the interactions between gluten and seed proteins were mostly weak, some of the physicochemical attributes differed significantly. In terms of volume and visual characteristics, pumpkin seed protein concentrates enriched bread demonstrated similar characteristics as the controls, while black cumin or grape seed protein concentrate enriched wheat flours were more resistant and less extensible than the controls. Similarities and differences between controls and protein enriched gluten-free or gluten-bearing bread were discussed.

This study targeted to elucidate the effect of seed aging on germination and emergence rates with and shoot characteristics in wheat cultivars. For this purpose, different bread wheat cultivars stored for 7 years and non-stored were compared for coleoptile length, root mass, shoot mass, root length as well as germination and seedling emergence rates. Here, the evidence suggested that seed storage over a prolonged period affected root and Shoot growth, coleoptile length, seed germination, and seedling emergence rates adversely. By linking germination and emergence rates, the data presented here indicated that a reduction in emergence rate in long-term storage was higher than that in the germination rate. It was also found that there were significant variations among the wheat cultivars about investigated traits during long-term storage. However, the emergence rates of Kate A1 and Flamura 85 were not affected substantially by long-term storage. The study suggested future studies to focus on clarification of the process controlling natural seed aging as such knowledge allows clue the eventual consequences of long-term storage.

Bu araştırmada, Kütahya il ve ilçelerinde çerezlik kabak çekirdeği üretimine başlayan üretici arazilerinin toprak özelliklerinin, hasat edilen tohumların özellikleri üzerine etkileri araştırılmıştır. Bu amaçla, Kütahya Tarım ve Orman İl Müdürlüğü’nün çiftçilere çerezlik kabak tohumluğu dağıttığı tarlalardan (44 adet) ekim öncesi toprak örnekleri alınmıştır. Toprak analizleri yapılmış ve elde edilen sonuçlara göre dekara 10 kg azot (N), 30 kg fosfor (P2O5), 11 kg potasyum (K2O) ve eksikliği belirlenen mikro elementleri yeterli seviyeye getirecek miktarda gübre önerilmiştir. Bu araştırma ile hasat edilen kabak tohumlarının verimi, morfolojik özellikleri, yağ ve protein içeriği belirlenmiştir. Araştırma alanındaki toprakların çoğunlukla killi tınlı, kireçli, organik madde içeriğinin orta, N içeriğinin yeterli, P içeriği yetersiz olarak belirlenmiştir. Toprakların mikro element içerikleri ise Fe ve Cu yeterli, Mn ve Zn çok az, B ise yeterli olduğu bulunmuştur. Kabak tohumlarının iç kısmının protein içeriği %22,6 ile 45,8 ve yağ oranı %41,48 ile 54,13 değerleri arasında değişmiştir. Bazı yetiştiricilerin ürettiği çerezlik kabak tanelerinin 100 tohum ağırlıklarının iri kalite sınıfına girdiği belirlenmiştir. Araştırma verileri, büyüme ortamı olan toprak özelliklerinin ve iklim koşullarının kabak çekirdeğinin protein ve yağ içeriğine doğrudan etkisinin çok fazla olduğu sonucuna varılmıştır.

Recent decades were characterized by genetic selection of broiler and layer chickens for enhanced growth rate and meat yield or intensified egg production, respectively. It is to be expected that genetic selection for various traits would also influence embryo development. The effects of different strains of chickens on egg weight, stage of blastoderm, variation of the blastoderm development and Pearson correlation between egg weight and stage of blastoderm at oviposition were studied in the current study. Hatching eggs were randomly collected from three layer chicken lines (Layer-1, Layer-2, and Layer-3) raised in Poultry Research Institute, and two broiler grandparent flocks (Female and Male) from Aviagen Anadolu. The age of all chicken lines was 36 week. A total of 30 eggs in each line were used, and egg weight and the blastoderm development of the embryos were determined at oviposition time. At the end of the research, significant difference in egg weights (P0.05). The mean stage of blastoderm development in male grandparent line eggs significantly lower than other four genetic lines (P

Bu çalışmada Rosaceae familyasında yer alan Cotoneaster transcaucasicus Pojark meyvelerinin hekzan ve metanol ekstraklarının toplam fenolik madde ve flavonoid madde içerikleri ile antioksidan aktiviteleri araştırılmıştır. Folin-Ciocaltaeu metodu kullanılarak fenolik madde miktarları metanol ekstraktında 50,34±2,70 mg GAE/g ve hekzan ekstraktında 38,06±1,32 mg GAE/g olarak belirlendi. Toplam flavonoid madde miktarı ise alüminyum nitrat yöntemi kullanılarak metanol ekstraktında 52,01±3,78 mg KE/g ve hekzan ekstraktında ise 60,54±6,82 mg KE/g olarak hesaplandı. C. transcaucasicus hekzan ve metanol ekstraklarının antioksidan aktiviteleri, DPPH ve FRAP yöntemleri ile değerlendirildi. Ekstrakların IC50 değerleri hekzan ekstraktı için 0,411mg/mL, metanol ekstraktı için 0,237 mg/ mL olarak hesaplandı. Ayrıca Fe3+-Fe2+ indirgeyici antioksidan gücünün hekzan ekstraktında daha fazla olduğu belirlendi. Sonuç olarak C. transcaucasicus meyvelerinin fenolik ve flavonoid madde miktarlarının ve antioksidan aktivitelerinin yüksek olduğu görülmüştür. Bu çalışma C. transcaucasicus türünde yapılan ilk çalışma niteliğinde olup bundan sonra yapılacak olan çalışmalara öncülük edeceği düşünülmektedir.