Eighteen wheat lines and the check cultivars IAC-24 and IAC-289 were evaluated in six trials carried out at different locations under dryland and sprinkler irrigation conditions, for grain yield, agronomic characteristics and disease resistance. In laboratory conditions, the germplasms were evaluated for their Al toxicity tolerance in nutrient solutions. The line L9 and the cultivar IAC-289 were superior in grain yield, considering the average of the six trials. The line L8 exhibited short stature associated to lodging resistance and early maturity. In relation to leaf rust the lines L1, L17 and L20 were resistant. All genotypes were susceptible to the causal agents of leaf spot and mildew. The line L7, showed long heads with the highest number of spikelets; IAC-289 and L17, the largest number of grain per head and per spikelet, respectively; and L11, the heaviest grains. All evaluated genotypes were tolerant to Al3+ toxicity, excepting the control cultivar Anahuac and the lines L15 and L20, which exhibited high sensibility.
wheat; agronomic characteristics; disease resistance; aluminum tolerance
