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Maderas. Ciencia y tecnología

versión On-line ISSN 0718-221X


MELO, Luiz Eduardo de Lima et al. Planting density effect on some properties of Schizolobium parahyba wood. Maderas, Cienc. tecnol. [online]. 2018, vol.20, n.3, pp.381-394. ISSN 0718-221X.

This study aims to understand the effect of the initial planting density on the anatomical variability and basic wood density of Schizolobium parahyba var. amazonicum in a planted forest in Amazonia. The effect of the initial planting density on the radial variation from pith to bark of anatomy and basic density was evaluated. There were two planting densities, planting density-I (624 trees ha-1) and planting density-II (312 trees ha-1). Planting density significantly affected only the ray height, fiber length and wall thickness. Radial position was not significant to the height of the rays and the fiber lumen diameter. The interaction planting density × radial position was only significant for the length of the vessel elements, ray frequency and fiber length. The results indicate that the initial planting density influences the radial behavior of certain anatomical characteristics. To obtain gain in terms of total wood per cultivated area, without harm to the density of the produced wood, planting density-I would be most useful, while planting density-II would be suitable for the production of more homogeneous wood, which tends to form adult wood in advance and with some anatomical characteristics appropriate for the plywood industry.

Palabras clave : Amazon; anatomical structure; basic density; paricá wood; radial variation; stocking density.

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