Desempenho agronômico de duas cultivares de rúcula em função de diferentes densidades de semeadura em sistema hidropônico

Abstract

The sowing density is defined as the number of seeds per unit area, has an important role in the yield of crops grown for commercial production, since the yield of a crop increases with the increase in the sowing density, until reaching a optimal density, which is determined by the cultivar and climatic conditions of the place and the management with the plants. the objective of the work was to evaluate the effect of sowing density on the productive performance of two arugula cultivars under hydroponic cultivation in the municipality of Uruçuí-PI. The experiment was carried out in the hydroponics of the IFPI-Campus Uruçuí, from November to December 2020. A randomized block design was used, with 5 replications, in a 2x3 factorial scheme (two arugula cultivars: Folha Larga and Donatella) with the following planting densities: 4, 6 and 8 plants per phenolic foam. The following parameters were evaluated: plant height (cm), root and shoot fresh and dry weight (g) and total fresh weight (g) and productivity (kg / m²). The data were subjected to analysis of variance and the means compared by the Tukey test (p <0.05). The best productive performance occurred for the cultivar donatella at the density of 8 plants per phenolic foam.