INFLUÊNCIA DO SILICATO DE CÁLCIO E MAGNÉSIO NA PRODUÇÃO E PÓS-COLHEITA DE ALFACE

Abstract

The objective of this work was to evaluate the influence of calcium and magnesium silicate on the postharvest production of lettuce cv Vanda. The experiment was conducted in a greenhouse at Escola Fazenda do Instituto Federal Goiano – Campus Posse, in an entirely randomized with 05 treatments: control (without use of concealer); recommended dose of calcium and magnesium silicate; half the recommended dose of calcium magnesium silicate; one third of the recommended dose of calcium and magnesium silicate; dolomitic limestone. They were plant height, stem diameter, stem length, number of leaves, root length, root dry mass, shoot dry mass, total plant mass and postharvest characteristics. From zero to nine days, mass loss of the plant, chlorophyll loss and visual quality through the parameters of global appearance and degree of deterioration. The evaluated soil amendment did not increase yield components as plants within the analyzed parameters. Production evaluations and sensory characteristics revealed that under the offered conditions of conduction and storage of the treatments did not it was possible to suggest an adequate dosage of calcium and magnesium silicate corrective for the lettuce, and showed the need to carry out new experiments in this segment, since there are few studies available on how the treatments were conducted and on the exposed dose.