Genetic variability and inheritance to aluminum tolerance in nutrient solution in triticale

Triticale has shown different behavior to aluminum toxicity (A1 3+ ) when applied nutrient solution. This study had the objective of evaluating 19 triticale lines inserted at International Maize and Wheat Improvement Center (CIMMYT), IAC-5 cultivar and two control cultivars of wheat in the presence of 0, 3, 6, 9, 12 and 15 mg L -1 of Al 3+ . Afterwards, four genotypes being two tolerant and two sensitive were chosen to obtain the F 1 's, F 2 's, RC 1 's and RC 2 's generations, in all possible crossing. The seedlings were submitted to 6 mg L -1 of Al 3+ and analyzed later on (tolerant and sensitive) by the chi-square method. The root growth was also obtained to estimate the genetic parameters involved in the character control. The trials were carried out in laboratories, in nutritive solution. The genotypes were tolerant to 15 mg L -1 of Al 3+ , exception the line 14 (P 3 ), sensitive to 3 mg L -1 of Al