Desempenho de mudas de Myracroduon urundeuva Fr. All. sob diferentes volumes de tubetes e condições de campo

Abstract

In order to evaluate the influence of different volumes of tubetes in the production of M. urundeuva seedlings as well as to verify their development in field simulation, an experiment was installed in the nursery of the Federal University of Recôncavo da Bahia, on the campus of Cruz das Almas, Bahia, in two stages: nursery seedlings production and initial seedling performance, simulating a field condition, according to the age of the seedlings, in DIC using three tube volumes (55, 180 and 280 cm3) and four periods of stay in the nursery (60, 75, 90 and 110 days after sowing), with 80 seedlings for repetition. The variables analyzed for the nursery stage were: breast height, diameter and dry mass of shoot and root. Already for the field simulation phase evaluated height and diameter. The data were submitted to analysis of variance, the means being compared by the tukey test at 5% and sequential regression analysis for the data over time. It is recommended to use the 280 cm3 tubes for the production of Myracroduon urundeuva, due to the possibility of reducing the production cycle in the nursery stage.