SciELO - Scientific Electronic Library Online

 
vol.20 número2Production of blockboard from small athel slats end-glued by different type of joint índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Maderas. Ciencia y tecnología

versión On-line ISSN 0718-221X

Resumen

COBAS, Ana Clara  y  MONTEOLIVA, Silvia. Descriptive models of distribution of juvenile and mature wood in Robinia pseudoacacia. Maderas, Cienc. tecnol. [online]. 2018, vol.20, n.2, pp.287-296. ISSN 0718-221X.  http://dx.doi.org/10.4067/S0718-221X2018005021201.

The objectives of the work were 1- to determine the patterns of axial and radial variation of wood density and fiber length in the loge of Robinia pseudoacacia, 2- to determine the transition age between juvenile and mature wood, 3- Construct a descriptive model of distribution of juvenile wood in the log based on wood density and fiber length. Slices were cut at 4 heights in the trunk (0,3 m; 1,3m; 2,3m y 4m above the ground) in 10 trees from Buenos Aires-Argentina (7-15 years old) implanted in the Province of Buenos Aires. The normal density12% and fibre length were determined in radial specimens obtained every 3 growth rings at all heights. The density showed homogeneity values along the commercial shaft, with a range of magnitude that classified as semi-heavy wood (750 - 823 kg/m3). The fiber length showed radial increase of their values from pith to bark and no axial variations. The model of juvenile wood resembles the model of central cylinder but of smaller diameter at the apex. The juvenile cone would form until the age of 3-6 years.

Palabras clave : Black locust; fiber length; patterns of variations; physical properties; wood density.

        · resumen en Español     · texto en Español     · Español ( pdf )