Click on image to view larger version.
Fig. 3. Relationship between the cultivar stability determined as the slope of the joint regression and the cultivar mean for (a) yield and (b) grain carbon isotope discrimination (
13C) for the 24 durum wheat cultivars. Means for grain yield and 13C are symbolized with vertical lines. Numbers correspond to cultivars according to Table 2 1 to 8 = old, 9 to 16 = intermediate, and 17 to 24 = modern. Underlined numbers in Fig. 3a correspond to cultivars not carrying dwarfing genes.
