Avaliação do crescimento e variabilidade espacial das espécies Astronium fraxinifolium Schott. e Anadenanthera macrocarpa Benth sob diferentes espaçamentos

Abstract

This study aims to evaluate the growth in diameter and height and determine the spatial variability of two species native woody, Anadenanthera macrocarpa Benth.(angico red) e Astronium fraxinifolium Schott.(Gonçalo-alves) under different spacings. The research was conducted at the Experimental Campus of the Federal University Reconcavo of Bahia (UFRB), Cruz das Almas, Bahia. The study was divided into two chapters, Chapter I titled Growth evaluation using test average of two native species, Astronium fraxinifolium (Goncalo Alves) and Anadenanthera macrocarpa (red angico) as a function of spacing.The experimental design was a randomized block with four replications and four treatments, according to spacing 6.0 x 1.5m, 6.0 x 2.0m, 6.0 x 2.5m, 6.0 x 3, 0 m, where the characteristics were evaluated for survival, diameter at stem (DAS) and total height (Ht) at 3, 4 and 5. there was a further development in diameter to the largest Red angico treatments, while the other variables not influenced by spacing Already Chapter II titled by geostatistical analysis in determining the spatial variability of diameter and height Astronium fraxinifolium (Goncalo Alves) and Anadenanthera macrocarpa (Red angico) under different spacings We used the semivariogram analysis to determine spatial variations of diameter at ground height (DAS) and total height (Ht) for the realization of maps delineating was used for growth through kriging. we observed an increase in spatial variability with increasing age and concentration of the species mairoes diameter Anadenanthera macrocarpa (angico Red) larger in treatments.