Twenty wheat genotypes were evaluated in three different wheat regions in the State of São Paulo, Brazil (Zones A and B - upland conditions, and Zone H - sprinkler irrigation) during the 1994-95 season. Grain yield stability and adaptability, tolerance to aluminum toxicity and flour quality parameters were determined. The results showed: a) the genotypes exhibited different regional behavior in relation to grain yield; b) the genotypes IAC 289, IAC 340 and BR 18 displayed the highest grain yields, considering all experiments, and they did not differ from 'IAC 304', 'OCEPAR 14', 'IAC 350', 'Panda', 'IAC 60' and 'IAC 348'; c) the majority of the genotypes showed no significant regression deviation (S²d) values, therefore they did not display diversity when grouped; d) 'IAC 289', 'IAC 340' and 'IAC 304' were responsive to favorable environments (b > 1) and 'IAC 227' was responsive to unfavorable environments (b < 1); e) the genotypes IAC 24, IAC 120, IAC 227, OCEPAR 14, IAC 348, Panda, BR 18, IAC 319, IAC 346, IAPAR 60, IAC 332 and IAC 347 were considered tolerant to Al3+ toxicity; f) the flour of the genotypes showed low amylase activity; g) the flour of the genotypes IAC 340, IAC 227, IAC 319 and IAC 60 had low W (dough deformation energy) values and low stability, characteristics of weak gluten flour. The other genotypes showed strong gluten characteristics.
Triticum aestivum L.; wheat; grain yield; adaptability; tolerance to Al3+; flour quality
