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Fig. 7. Relationship between year of release of 15 cultivars and their grain yields under fungicide protected and non-protected conditions for normal planting dates. Cultivars were sown at normal planting dates over four seasons at CIANO (Centro de Investigaciones Agricolas de Noreste) experiment station, Sonora, northwest Mexico. Leaf rust epidemics were established by inoculating spreader rows planted adjacent to plots of cultivars which were not protected by fungicide. Cultivars were derived from CIMMYT germplasm, and their names are listed in Table 3. Adapted with permission from Sayre et al. (1998). g = annual genetic progress.
