Agronomic characteristics and quality of lettuce cultivars in different crop seasons in western Alagoas, Brazil

ABSTRACT Growing lettuce under high temperatures and light incidence, as in the Alagoas State hinterland, Brazil, induces early tasseling decreases quality of product. Thus, objective this work was to evaluate production post-harvest cultivars different crop seasons western Alagoas, Brazil. A randomized block experimental design used, with four replications. The treatments consisted cultivars: Baba-de-Verão, Cinderela, Elba, Mônica, Solaris, Veneranda. winter more favorable for plant diameter, except whose performance similar both stood out summer. resulted better height, stem fresh matter yield, whereas summer plants reached larger number leaves. cultivar Mônica presented longer length, denoting lower tolerance and, therefore, it is not indicated be grown region. Baba-de-Verão (Lisa group) higher leaves per plant, most adequate Alagoas. Veneranda were from Crespa group that out. best chlorophyll a, b, total. Solaris highest carotenoid contents. Plants a total, contents, pH, soluble solid (SS) titratable acidity (TA) ratio, had SS TA.