Indexed data for comparing the reaction of durum wheat cultivars to Soil-borne cereal mosaic virus assayed in different seasons.

Evaluating the reaction to Cereal soilborne mosaic virus (CSBMV) of wheat cultivars in replicated, large-plot, field trials in which genotypes are compared in terms of symptom severity and ELISA values, as well as on the basis of agronomical performance has furnished reliable data, useful for both wheat growers and plant breeders. Indexed data for fifteen field trials carried out in eight seasons and involving a total of 215 cultivars of durum and hexaploid wheat are presented. As might be expected, use of indexes did not appreciably modify the reaction thus far attributed to single cultivars. On the other hand, use of such indexed data has furnished more objective data for ranking cultivar reactions to CSBMV in Italy, and will enable more precise comparisons with data produced by research groups in other countries.