Bread and durum wheat: Intra- and inter-specific variation in grain yield and protein concentration of modern Italian cultivars

Both durum and bread wheat are well adapted to Mediterranean environments where durum wheat is traditionally assigned to more stressful conditions. Twenty-seven cultivars of each species were grown under 4 environments in Sardinia (Italy) to characterize the differences in grain yield and protein between and within them. The large number of cultivars revealed large within-species variability in yield and no or just minor between-species...