Desempenho agronômico de cultivares de alface crespa em duas épocas de cultivo no município de Uruçuí - PI

Abstract

The objective of the work was to evaluate the agronomic performance of nine lettuce cultivars, from the Crespa group in two seasons (March / June and August / November 2019) in the municipality of Uruçuí-PI. The experimental design used was in randomized blocks with three replications, containing 16 seedlings per experimental unit, with the four plants used for the evaluations and the treatments were represented by the nine cultivars. After harvest, the variables were evaluated: number of leaves, fresh and dry weight of the aerial part, length of the stem, diameter of the stem and fresh weight of the stem. The cultivars present different levels of adaptations in relation to the growing seasons in the municipality of Uruçuí-PI, with the cultivars Itapuã Super and Alface Crespa for summer showing satisfactory development in the first season and Vanda, followed by Isabela da Crespa for summer in the second season. The cultivars Elba, Mônica SF 31, Grands Rapids and Simpson are not suitable for cultivation in the municipality of Uruçuí-PI.