Evaluation of Yellow Rust Reactions in some Bread and Durum Wheat Varieties by Using Spectral Band Regions

Abstract

Yellow rust (caused by Puccinia striiformis f. sp. tritici) is an important fungal disease affecting wheat production and quality. The purpose of this study was to identify the spectral band regions that influence how the disease changes throughout the year by determining how the plant responds to yellow rust when it is applied to test materials at various doses (0%, 25%, 50%, and 100%). Eser, Bayraktar 2000 and Demir 2000 varieties showed high correlation in the early-mid period of the study for bread varieties, while Kenanbey variety exhibited high correlation in the mid-late period. Effective band region for all bread types are The Red+Red Edge+ Near Infrared (NIR) range and NIR range of the Kenanbey variety both showed an increase (+) in disease severity values. Eminbey and Çeşit-1252 varieties for durum varieties displayed high correlation in the early period, followed by Mirzabey 2000 variety in the early to medium period and Kızıltan-91 variety the mid to late period. Kızıltan 91 variety in Red+Red Edge+NIR region, Çeşit-1252 variety in Green+Red region, Eminbey and Mirzabey 2000 varieties in Green+Red+Red Edge were effective in band ranges in the region and showed an increase (+) in disease severity reactions.