Biometry of Lofantera-da-Amazônia seeds

Abstract

Given the importance of studies on the vegetation of the Amazon biome and the lack of knowledge about the biometry of Lophanthera lactescens seeds, a species exclusive to the Amazon region, the aim of this study was to carry out a biometric analysis of the species' seeds. An analysis was carried out on 500 seeds collected from three matrices. Biometry was carried out using equipment focused on automating analysis (Groundeye), determining the largest diameter, smallest diameter and geometry of the seeds. The data obtained was evaluated using descriptive statistics, using the SISVAR statistical analysis and experiment planning program. The Coefficient of Variation for the geometry analysis was 13.85%, which is considered to be a medium variation value. The maximum (0.140 cm²) and minimum (0.050 cm²) geometry showed a range of 7.986 cm². The biometry of the seeds from the Lophanthera lactescens matrices studied showed that they had geometries ranging from 0.140 cm² to 0.050 cm², with the majority having geometries in the 0.08 cm² class. In addition, the results show that there is variability between the matrices, probably due to both genetic and environmental factors, demonstrating heterogeneity between the matrices studied.