Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Anatomic characterization of growth-rings in 80 potential tree species for dendrocronological studies in the Central forest, Perú
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Keywords

anatomic characterization
growth rings
early wood
late wood
dendrocronology
características anatómicas
anillos de crecimiento
madera temprana
madera tardía
dendroconología

How to Cite

Beltrán Gutiérrez, L. A., & Valencia Ramos, G. M. (2013). Anatomic characterization of growth-rings in 80 potential tree species for dendrocronological studies in the Central forest, Perú. Revista De Biología Tropical, 61(3), 1025–1037. https://doi.org/10.15517/rbt.v61i3.11778

Abstract

The knowledge about the existence of annual tree rings in tropical trees, which was already found at the beginning of the last century, was ignored by many scientists for a long time. Wood samples of 80 tree species from seven different sites belonging to Satipo and Chanchamayo provinces in Central Forest, Perú. Wood slices were taken at 1.30m height, following the Peruvian Technical Norms (NTP) 251-008, COPANT norms 30:1-019 and IAWA (1989). Results showed that 24 of the 80 tree species analyzed showed a potential for dendrocronological studies, 25 had problems for growth-rings analysis, and 31 did not have potential. The problems most frequently found were: barely visible or irregular ring growth, parenchyma bands and multiseriate rays difficult to be identified in rings growth. The “T” Student test showed that the significant variation in vessel and fiber diameters between growth zones (Early-wood and late-wood) of species with potential for dendrocronology, do have a periodic cells production, so is possible to suggest the annual formation of each growth-ring. However, those species without potential to dendrocronology may be influenced by of a lot of factors, such as biotic and abiotic conditions of environment, as well as the genetic aspect of each species.
https://doi.org/10.15517/rbt.v61i3.11778
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