The aim of this work was to evaluate the radial and longitudinal variations of wood specific gravity in an overstocked stand of Araucaria angustifolia, with 65 years. The stand was located in the National Forest of Açungui, Campo Largo, Parana State, Brazil, with thinning recorded between 1970 and 1980, without subsequent thinnings. We selected three trees for each diameter class: 10-30 cm, 30-50 cm and 50-70 c...
In the paper " New country, Brazilian states and host records of the eucalypt shoot psyllid Blastopsylla occidentalis", DOI: 10.4336/2018.pfb.38e201701533, published in Pesquisa Florestal Brasileira, v. 38, 2018, on the page footer, where it reads:“DOI: 10.4336/2018.pfb.e201701533”,it should read:“DOI: 10.4336/2018.pfb.38e201701533”.; No artigo "Novos registros de países, estados brasileiros e hospedeiros para ...
The injuries of Ctenarytaina spatulata Taylor, 1977, were characterized through observations in field, laboratory and greenhouse. The first injuries of C. spatulata in Eucalyptus grandis are caused during oviposition. At the point where the egg is inserted, a small black spot appears, which may grow larger, causing the bud death. The insect eliminates large amount of honeydew, accumulating on leaves and a...
The information on the influence of environmental factors upon growth rate of trees is very important for the development of forestry management programs. The aim of this work was to determine the age and radial increments of the trees. Samples were collected, in July 1996, in Nhumirim Farm, Embrapa Pantanal, located in Nhecolândia sub-region, Pantanal, Corumbá - Mato Grosso do Sul. The disks from 19 trees spe...
A biomassa florestal vem sendo apontada como alternativa com grande potencial para complementar a matriz energética mundial. O vasto campo ainda por explorar pela pesquisa resulta em trabalhos que muito contribuem para a otimização do uso desses recursos.Nesse número especial da Pesquisa Florestal Brasileira, são apresentados 11 estudos, oito artigos técnico-científicos, dois artigos de revisão e uma nota técni...
Araucaria Forest is one of most threatened phyto-physiognomies in the Atlantic Forest domain,presenting great ecological-economical importance. Nevertheless, there are still lacks of knowledge concerning growth and dynamic of important species, as Araucaria angustifolia. The objective of this work was to recover the past growth of Araucaria angustifolia, native from Caçador, SC, Brazil, by measuring growth rin...
In the present work the dendrochronological potential of six species of the Araucaria Forest is analyzed. The trunks of 20 trees were collected in Candoi, State of Parana, Brazil, from an area that belongs toELEJOR, Centrais Elétricas do Rio Jordão, for the following species: Araucaria angustifolia, Clethra scabra, Cedrela lilloi, Ocotea porosa, Podocarpus lambertii and Sebastiania commersoniana (3 to 6, from e...