The growth and yield response of spring wheat to inoculation with foreign and local rhizobacteria of Erzurum (Turkey) origin was studied. At the first stage of the research, a greenhouse experiment was carried out with wheat cv. Kirik using 75 local bacterial strains isolated from the soil with 6 foreign bacteria, and a control. According to results of the greenhouse experiment 9 local strains were identified. At the second stage, the response of wheat cv. Kirik to 20 treatments (9 local strains, 6 foreign bacteria, 4 levels of N, and a control) was investigated in Erzurum field conditions. Seventeen strains had significant positive effects on tiller number per plant, 47 strains on plant height, one strain on dry matter yield, and 28 strains on plant protein content in the greenhouse experiment. Inoculation with certain rhizobacteria clearly benefited growth and increased the grain and N-yield of field grown wheat. The effects of local strains were observed to be in general superior to those of foreign strains. Inoculation with the local Strain No. 19, 73, and 82 increased total biomass by 18.7, 18.1, and 19.9%; grain yield by 18.6, 17.7, and 18.0%; total N-yield by 27.5, 24.3 and 26.0%, respectively, as compared to control. In conclusion, Strain No. 19, 73, and 82 can be a suitable biofertilizer for spring wheat cultivation in areas with similar conditions as in Erzurum. Inoculation with these strains may lead both to increases in wheat yield and savings of nitrogen fertilizer.

Durum wheat (Triticum turgidum var. durum Desf.) is a major world crop that is grown primarily in areas of the world that experience periodic drought, and therefore, breeding climate-resilient durum wheat is a priority. High-throughput single nucleotide polymorphism (SNP) genotyping techniques have greatly increased the power of linkage and association mapping analyses for bread wheat, but as yet there is no durum wheat-specific platform available. In this study, we evaluate the new 384HT Wheat Breeders Array for its usefulness in tetraploid wheat breeding by genotyping a breeding population of F hybrids, derived from multiple crosses between T. durum cultivars and wild and cultivated emmer wheat accessions. Using a combined linkage and association mapping approach, we generated a genetic map including 1345 SNP markers, and identified markers linked to 6 QTLs for coleoptile length (2), heading date (1), anthocyanin accumulation (1) and osmotic stress tolerance (2). We also developed a straightforward approach for combining genetic data from multiple families of limited size that will be useful for evaluating and mapping pre-existing breeding material.

Two experiments were performed to examine the effects of inoculation of barley cv. Tokak 157/37 with indigenous and non-indigenous bacterial strains. A greenhouse experiment was carried out with 75 strains isolated from Erzurum Plain and Pasinler Plain soils of Turkey, and the 6 non-indigenous strains. The 41 strains had significant positive effects on tiller number per plant, 8 strains on plant height, one strain on dry matter yield, and 24 strains on plant protein concentration. In the second experiment,

Background and objectives Arabinoxylans (AXs) are the main nonstarch polysaccharides in cereals, and there are many health benefits associated with AXs. The aim of this study was to compare the contents and composition of arabinoxylans in modern and old bread wheat genotypes and landraces. The second aim was to determine the correlations between AX composition and physical properties of wheats. The third aim was to investigate the changes in water‐extractable AX (WEAX) content from wheat to whole wheat bread and also investigate the effect of enzyme addition on WEAX contents during bread making process. Findings Principle component analysis results indicated that there were no extreme differences between the old and new wheats in terms of AX composition and physical properties. However, the old cultivars were generally softer than the modern cultivars. There was no statistically significant difference between WEAX content of whole wheat and whole wheat bread. However, WEAX content increased in whole wheat bread with the addition of xylanase. Conclusion The results indicated that there were no extreme differences between the old and new wheats in terms of their various quality parameters. Significance and novelty Comparison of the wheat genotypes has provided no evidence that modern breeding has had negative effects on the contents of AX components.

Bu çalışmada, ekmeklik buğday genotiplerinde fiziksel, kimyasal ve reolojik kalite özellikleri incelenmiştir. Islahın erken kademesinde materyal miktarı yetersiz olduğu için kalitenin belirlenmesinde Zeleny sedimantasyon analizi önem kazanmaktadır. Çalışmada, Zeleny sedimantasyon değeri ile diğer kalite parametreleri arasındaki ilişki değerlendirilmiştir. 2015-2016 Yetiştirme sezonunda sulu koşullarda 4 lokasyonda kurulan denemelerden elde edilen materyal kullanılmıştır.1000 tane ağırlığı, hektolitre ağırlığı, tanede protein miktarı, un verimi, yaş gluten, kuru gluten ve gluten indeksi, alveograf parametreleri (G, P, L, P/G, P/L ve W), Zeleny sedimentasyon ve beklemeli Zeleny sedimantasyon değerleri, farinograf parametreleri (su absorbsiyonu ve yumuşama değeri) ile glutograf değerleri (stretch s, stretch BU ve relaxation BU) değerleri belirlenmiştir. Zeleny sedimantasyon değerleri ile aralarındaki korelasyonlar incelenmiştir. Araştırma sonucunda; Zeleny sedimantasyon değeri ile alveograf (G, L, P ve W), beklemeli Zeleny sedimantasyon değeri, farinograf su absorbsiyonu, tanede protein, yaş gluten ve kuru gluten değerleri (p<0,01), glutograf stretch (s) ve un verimi (p<0,05) arasında pozitif; farinograf yumuşama değeri arasında negatif (p<0,01) korelasyon değerleri elde edilmiştir. Zeleny sedimantasyon değeri ile yüksek korelasyon değerlerine sahip kalite parametreleri arasındaki regresyon incelendiğinde, en yüksek belirtme katsayısına (R2) sahip regresyon eşitlikleri alveograf enerji değeri (W), tanede protein ve kuru gluten parametrelerinden elde edilmiştir. Anahtar kelimeler: ekmeklik buğday, kalite, regresyon, korelasyon, zeleny sedimentasyon Investigation of the relationship between Zeleny Sedimentation Analysis and Other QualityParameters in Bread Wheat (Triticum aestivum L.