Abstract
The composition of the wood and its elements are considered determinants in the wood properties, standing out the fibers, axial parenchyma, number of vessels and rays. In this context, we aimed to investigate and describe the wood anatomical structure of the Erythroxylum myrsinites Mart. and identify its potential uses in the area of wood technology. From the tree, were removed three wood samples for the confection of anatomical slides, witch 3 × 3 × 3 cm, oriented we plans transversal, longitudinal and tangential longitudinal. For the preparation of histological blades, the method of Burger and Richter was adopted; the anatomical description was based on IAWA Committee recommendations. The species presents vessels numerous, solitary, composing 19% of the volume of wood. Diffuse porosity of polygonal contour and thin walls. Mean vascular elements, axial parenchyma representing 3% of the volume of the wood, in a paratracheal vasicentric arrangement. The rays are numerous, occupying 23% of the volume of the wood, narrow and heterogeneous, consisting of procumbent, square and erect cells. The fibers are libriform, of length medium and thick walls, occupying 55% of the volume of the wood, have spiral thickening and septate fibers, absent tracheids, and gelatinous fibers abundant. The characteristics presented give high flexibility to the stem and branches, and the wood with low specific mass, permeable and resistant to mechanical loads has potential for use in energy generation.
Highlights
Several researchers have sought to determine the relationship between the components of wood and the reflection of the anatomical composition on the properties of this material (Eames & McDaniels, 1953; Burger & Richter, 1991; Gomide, 2005; Marques, 2008)
Samples of E. myrsinites a rheophyte species were obtained from a forest remnant of the Atlantic forest domain, in the municipality of Farroupilha, Serrana Region, Rio Grande do Sul, Brazil (29o23′29′′ S; 51o23′43′′ W)
Vessels of Erythroxylum myrsinites were numerous, solitary, trivially twinned, and represented 19% of the total volume of the wood
Summary
Several researchers have sought to determine the relationship between the components of wood and the reflection of the anatomical composition on the properties of this material (Eames & McDaniels, 1953; Burger & Richter, 1991; Gomide, 2005; Marques, 2008). The anatomy of the wood provides a set of quantitative and qualitative data, which makes it possible to use it as a tool to help different areas of knowledge. It may present data such as the interaction between climatic conditions and plant growth (Olano et al, 2013; Castagneri et al, 2015), identification of species that are more resistant to climate change wood constitution and assistance in production and quality data (Cuny et al, 2015). Wood properties—e.g., length and diameter of fibers, percentage and size of rays, and porosity—can determine its suitability and correct use (Denardi, 2007; Beeckman, 2016; Baldin et al, 2018)
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