Türk Tarım ve Doğa Bilimleri Dergisi

Yazarlar: Kadir AKAN

Konular:-

DOI:10.30910/turkjans.633548

Anahtar Kelimeler:Durum wheat (Triticum durum L.),Yellow rust (Puccinia striiformis f. sp. tritici)

Özet: Yellow rust (Puccinia striiformis f. sp. tritici) has a negative effect on the yield and quality of particularly susceptible cultivars in durum wheat (Triticum durum) due to the severity of the disease during the epidemic. This study was started in 2006 at the Central Research Institute of Field Crops with the selection of 61 durum wheat lines developed by different breeding programs. This material has been tested under the conditions of artificial and natural epidemic in greenhouse and field conditions between 2006 to 2016 against 3 dominant populations of yellow rust. Disease evaluations were made according to the Modified Cobb scale and the materials with a coefficient infection of ≤20 were evaluated as resistant. GGE-biplot analysis was performed to evaluate the change of disease reactions according to the growing season of the study material and the populations of yellow rust. The GGE-biplot graph, which was prepared as a result of the study, visually resistant genotypes were determined efficiently and the PC1 and PC2 axes of the GGE-biplot graph, which were formed over the years, explained 57.67% of the total variation. With the lowest PC1 values ​​in the graph, the PC2 values ​​close to 0 best explained the resistance of the selected materials to yellow rust. The study materials were determined to be resistant to the dominant populations of the disease every year. These lines can be used as a source of endurance in yellow rust resistance breeding studies.

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