Browsing by Author "Yildirim, Mehmet"

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Changes in Quality Components of Durum Wheat Genotypes Under Temperature Stress and Sufficient Rainfall Conditions During the Growth Period
(Publ House Bulgarian Acad Sci, 2024) Elis, Seval; Yildirim, Mehmet
A combination of genetic makeup and environmental factors determine the quality characteristics of durum wheat. Specifically, environmental stressors, such as extreme temperature fluctuations, can have a substantial impact on the productivity and quality of wheat crops. The effect of terminal temperature stress on yield and quality in durum wheat genotypes grown during 2019 and 2020 seasons was studied. These characteristics include thousand kernel weight, protein content, hectoliter weight, wet gluten content, Zeleny sedimentation value, and grain colour. The first year of the study was warmer than the second, resulting in decreased kernel weight, hectoliter weight, and gluten values, as well as increased protein content and Zeleny sedimentation values. This indicates that temperature stress leads to a higher protein content. The study also showed considerable variation in quality traits among genotypes, with certain genotypes demonstrating greater stability in specific quality traits. Genotype by environment interaction significantly affected grain weight, protein content, gluten content and Zeleny sedimentation. These data indicate that temperature stress plays an important role in determining the quality characteristics of durum wheat. Future studies should focus on mitigating the adverse effects of terminal temperature stress and improving the generation of genotypes with optimal quality traits.
EVALUATION OF YIELD TRAITS, QUALITY PARAMETERS AND SEED YIELD STABILITY FOR LENTIL GENOTYPES UNDER DIFFERENT LOCATIONS IN TURKEY
(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2019) Kizilgeci, Ferhat; Bicer, Behiye Tuba; Yildirim, Mehmet; Akinci, Cuma; Albayrak, Onder; Bayman, Serkan
Lentil is conventionally grown as a rain fed crop, mostly in the Middle East; it's a rich source of protein for human feeding. Yield, seed quality, adaptability and chalky spot syndrome of fifteen lentil genotypes and five lentil cultivars were evaluated in the South-Eastern Anatolia of Turkey. Yield and yield trails as well as seed quality such as protein content, seed rate with chalky spotted and germination rate for of all genotypes were varied significantly. Seed yield were varied from 1337 to 2142 kg/ha among the genotypes. While cultivar 'Sakar' produced the maximum yield and cultivar 'BM 848' produced the minimum seed yield. It was also revealed that genotypes 'ILL10975', 'FLIP2010-94L' and cultivar 'Sakar' was found the most sensitive to cold. Lentil crops with chalky spotted were detected in Adiyaman location and its rate ranged from 42% to 13%. Genotype x environment interaction was significant for seed yield and different stability parameters were computed for genotype adaptability. Ecovalance (W(2)i) and stability variance (sigma(2)i) were low value in genotypes ILL 3375 and Kafkas, but Firat 87 had high values.
Genotype and Environment Effects on the Grain Yield and Quality Traits of Some in Barley Genotypes
(KAHRAMANMARAS SUTCU IMAM UNIV REKTORLUGU, 2019) Kizilgeci, Ferhat; Yildirim, Mehmet; Akinci, Cuma; Albayrak, Onder
The purpose of this study was to determine genotype and environment effects on the grain yield and its component of some barley genotypes in Diyarbakir and Mardin conditions in 2011-2012. In the study, 2 commercial varieties and 5 advanced lines were used as a material. Grain yield, thousand grain weight, test weight, protein content, starch content and SPAD value were measured. Results varied between 413.60-661.63 kg da(-1) for grain yield, 42.21-45.02 g for thousand grain weight, 58.92-66.39 kg hl(-1) for test weight, 11.70-14.24 % for grain protein content, 59.8-61.2 % for grain starch content and 44.4-48.6 unit for SPAD value. Altikat sustained the highest grain yield in both locations. DZA-7, DZA-8 and Dicle 1 advanced lines showed high performance in terms of protein contents, starch content and test weight. When all traits were evaluated using the Biplot analysis, grain yield, thousand grain weight and SPAD were involved in the same group, while protein content, starch content, test weight were grouped in the other group.