From 1991 to 1993, sixteen wheat genotypes were evaluated in experiments carried out at the different wheat regions of the State of São Paulo, Brazil, under sprinkler irrigation. Grain yield, reactions to the causal agents of leaf rust, powdery mildew and leaf spots and the flour technological quality were evaluated. The genotype TUI"S" presented high productivity and good adaptation at the different studied wheat regions. The genotypes IAC 289, IAC 335, IAC 338, IAC 286 and IAC 60 also showed good performance. The wheat region D (Tatuf) exhibited the highest grain yield, differing significantly from the region C (Paranapanema), which presented the lowest grain yield. The occurrence of leaf spots, caused by Helminthosporium sp. and powdery mildew were generalized in all regions during the considered period. Taking into account the physical, chemical and rheologic parameters, the genotypes IAC 24, IAC 315, IAC 334, TUI"S" and IAC 339 presented superior flour quality (hard) as compared to the others. The flour of the genotypes 79-218 and NS.55.58/PJN"S" was considered of inferior quality (soft).
wheat; Triticum aestivum L.; grain yield; disease resistance; flour technological quality