Desempenho agronômico de jambu (Acmela oleracea (L.) R. K. Jansen) em função de espaçamentos e arranjos espaciais

Abstract

Jambu is an herbaceous vegetable, typically from the Brazilian Amazon region, which has attracted the attention of researchers because of its vast utility, which makes it a vegetable of great economic interest, however, there are still few works in the national literature, mainly related to plant breeding information for this species. In this way, this work had as objective to evaluate the agronomic performance of jambu, as a function of spacing and spatial arrangements, in the conditions of northeast of Para. For this, an experiment was carried out in the open field, using the experimental design in randomized blocks, 2 x 2 factorial scheme, with five replications. The first factor was composed of two spacings, 0.20 x 0.20 m and 0.15 x 0.15 m, and the second factor was composed of two spatial, quadrangular and triangular arrangements. The evaluated characteristics were: shoot length (cm), fresh shoot mass (g), shoot water quantity (g plant-1 ), leaf area (cm2 plant-1 ), leaf area index (IAF), yield (kg m-2 ) and yield (m-2 package). There was no significant interaction between spacing factors and spatial arrangement. Among the evaluated characteristics, there was difference only for aerial part dry mass, amount of water in the aerial part and IAF, for the factor spacing. The other characteristics did not present a difference between the evaluated factors. Thus, based on the results obtained, it is recommended to use the spacing of 0.15 x 0.15 m in the triangular arrangement, due to the increase of yield and yield for jambu cultivation.