INFLUÊNCIA DA IDADE E ALTITUDE NAS CARACTERÍSTICAS ANATÔMICAS, QUÍMICAS E DE DENSIDADE BÁSICA DA MADEIRA DE CANDEIA - Eremanthus erythropappus

Content Provider	Semantic Scholar
Author	Mori, Claudia Oliveira Brito, José Otávio Filho, Mário Tomazello Scolforo, José Roberto S. Júnior, Francides Gomes Da Silva
Copyright Year	2010
Abstract	This work aimed to study the influence of tree age and altitude on some anatomical elements characteristics (basic density, total extractives, lignin, and leached ashes) of candeia wood. The sampled trees were collected in the Aiuruoca County, Minas Gersis State, Brazil, in two different altitudes (1,000 and 1,100m above sea level). From each altitude level 15 trees, enclosed in 3 diametric classes, were cut. Disks were taken from the trunk base of each tree in order to determine the age, the anatomical characteristics, and the basic density. Random samples from the trees trunks were collected for the chemical analyses. The wood density varied from 0.74 to 0.68 g/cm 3 in the trees collected at 1,000 and 1,100m of altitude respectively, being higher in the older trees. The wood anatomical characteristics of both sites were similar, with some variations in the amount of vases and pit sizes. Oily cells were observed in the radial parenchyma tissue. The vases frequency was lower in the older trees. The content of total extractives, amount of lignin, and leached ashes were statistically different in the two studied sites. The youngest trees presented higher leached ashes content; total extractives and lignin were not influenced by tree age.
File Format	PDF HTM / HTML
DOI	10.5380/rf.v40i4.20334
Volume Number	40
Alternate Webpage(s)	https://revistas.ufpr.br/floresta/article/download/20334/13492
Alternate Webpage(s)	https://doi.org/10.5380/rf.v40i4.20334
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article