Produção de mudas com variedades de alface em diferentes substratos.

Abstract

Lettuce cultivation is very important for the economy and widely used in human consumption, in addition to being commonly cultivated in family farming, generating income for producers, so it is essential to investigate techniques that will benefit farmers. The general objective was to investigate the germination process of varieties of Lactuca sativa L., curly lettuce and iceberg lettuce and, specifically, to evaluate the substrates that enable a germination process favorable to the cultivation of this species and two varieties. The experiment was conducted in a protected environment in conventional cultivation, in a greenhouse belonging to the Federal University of Campina Grande, Education and Health Center, Cuité campus, located on the Olho d’água da Bica site, rural area of the municipality of Cuité. The 20-day period ran from August 13, 2024 to September 1, 2024. The work was carried out in a factorial scheme, it was found that the substrates did not interact with the varieties of Lactuca sativa L. After the analysis of variance and the comparison of means, it was found that there was no significant interaction between the substrates and the seeds of the varieties of crisp and iceberg lettuce. This lack of interaction was enough to prevent considerable variation in the results of the analyzed variables: germination percentage, germination speed index and number of definitive leaves. The substrates MecPlant, Carolina Soil and Ht Hortaliças were those that best provided the best percentage of germination and germination speed index of the Lactuca sativa L. varieties researched. The American variety stood out in the investigated variables of germination percentage, IVG and definitive leaves.