Twenty three Mexican inbred lines and the cultivars IAC-24 and Anahuac were evaluated in field experiments carried out at Monte Alegre do Sul and Tatuí Experimental Stations and at Maracaí during the period of 1984 to 1986. Grain yield, number of days from emergence to flowering and from emergence to maturation, plant height, percentage of layed plants, head length, number of grains per spike and spikelet, number of spikelets per spike, resistance to stem and leaf rust were evaluated under field (adult plants) and greenhouse conditions (seedling stage). Tolerance to Al toxicity was evaluated in laboratory using nutrient solutions. The lines IAC-215, IAC-216, IAC-217, and IAC-219 showed high grain yield but they did not differ from the check cultivars. In relation to stem and leaf rusts the lines Festiguay-Tecolote 363.30.6.1 x Ciguena, and [4777² x (Frontana/Kenya 58//Newthatch)] Gabo/Pavon-76 (T-12 and T-13) showed resistance to nine races of stem rust and to six races of leaf rust. The genotypes IAC-215, IAC-216, Yaco"S", IAC-218, Dougga-Bluejay (T-4), Buckbuck"S"-Bulbul"S" presented early plants; IAC-215, Yaco"S" and Jupateco 73-Bluejay showed short plants; Bonanza-Yecora F-70/Florence 35.70 exhibited long heads, with large number of spikelets and grains per spike; Jupateco 73-Bluejay had high head fertility and [(IAS-58-IAS-55 x Alondra"S"/IAC-5) Alondra"S" - IAS-58 103A x Alondra"S" ], IAC-215, IAC-216, IAC-219 and IAC-24 were the most tolerant material to 10 mg/liter of Al3+. These genotypes would be of great value as genetic sources of this characters in a breeding program for the State of Sao Paulo, Brazil.
wheat; cultivars; inbred lines; plant height; grain yield; stem and leaf rusts; tolerance to Al toxicity