Özet:

In this study, the effects of mineral fertiliser applications at different doses on the severity of rust disease during the phenological stages of some durum wheat varieties were investigated during 2018-2019 production period. Different doses of Fe (Fe5, Fe10, Fe20), Zn (Zn7.5, Zn15, Zn30) and their combinations (Fe+Zn (5+7.5), Fe+Zn (10+15), Fe+Zn (20+30)) were applied to durum (Kiziltan 91, Eminbey, Variety-1252 and Mirzabey) and standard wheat varieties (Morocco and Little Clup) from tillering to stalk emergence. Changes in disease severity against different doses of fertiliser applications were evaluated by uncontrolled classification method in "Image Classification" module of ArcGIS in 4 different phenological periods. Fe and Zn fertiliser applications caused a decrease in disease severity at all doses in durum cultivars Kiziltan-91 and Variety-1252 in the early period compared to the cultivars without fertiliser application (control). In Eminbey cultivar, Fe, Zn and Fe+Zn fertiliser dose applications caused increases in disease severity at different levels, while the highest increases were found in the middle-late period (+200%). For Mirzabey 2000 variety, it was evaluated that the decreases in disease severity in Fe fertiliser dose applications were mostly in the early period (-16.69%).

Anahtar Kelimeler: