Abstract
In this study elevated temperature effects on protein quality parameters and in particular on protein sulfhydryl-disulfide contents were assessed. Four Italian durum wheat cultivars which differed for the qualitative trait changes produced by heat stress were employed. During grain filling two different thermal regimes were imposed on the plants grown in a typical area of durum wheat cultivation (Southern Italy). Results confirmed significant effects of high temperatures on the quality of products in the durum wheat chain and indicated that elevated temperatures determined changes on protein redox status, particularly evident on S-S bond content. For most of the examined traits significant cultivar x treatment interactions were also evidenced.
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