Results 31 to 40 of about 34,074 (221)

Relação entre concentrações foliares de carboidratos solúveis totais e tolerância ao frio em diferentes espécies de Eucalyptus spp.

Ciência Florestal, 2013
http://dx.doi.org/10.5902/198050988450O objetivo deste trabalho foi avaliar o efeito da rustificação sobre a tolerância ao frio em Eucalyptus dunnii Maiden, Eucalyptus benthamii Maiden & Cambage, Eucalyptus grandis W.
Mireli Moura Pitz Floriani, Cristiano André Steffens, Djalma Miler Chaves, Cassandro Vidal Talamini do Amarante, Tiago Georg Pikart, Maitê dos Santos Ribeiro   +5 more
doaj   +1 more source

Adesivos à base de taninos das cascas de duas espécies de eucalipto para produção de chapas de flocos Two eucalypts bark tannin-based adhesive for production of flakeboards

Revista Árvore, 2004
Os taninos foram extraídos das cascas de Eucalyptus grandisW. Hill ex Maiden e Eucalyptus pellita F. Muell. com água quente e a adição de 4,5% de sulfito de sódio, durante três horas, nas temperaturas de 70 e 100 ºC, respectivamente.
Benedito Rocha Vital, Angélica de Cássia Oliveira Carneiro, Alexandre Santos Pimenta, Ricardo Marius Della Lucia   +3 more
doaj   +1 more source

IRRIGATION FREQUENCIES FOR Eucalyptus grandis SEEDLINGS

REVISTA ENGENHARIA NA AGRICULTURA - REVENG, 2020
One of the bottlenecks in relation to the production of forest seedlings is irrigation, especially in less-tech nurseries. The small volumes of substrate, where the seedlings develop, lead to low water storage. This fact can lead to water deficit and significant losses in the production of seedlings, generating even mortality.
Gustavo Henrique Miguel da Cruz, Fernando França da Cunha, Epitácio José de Souza, Andrisley Joaquim da Silva, Roberto Filgueiras   +4 more
openaire   +3 more sources

Influence of climate variables in the initial growth of Corymbia citriodora and different species of eucalyptus

Bioscience Journal, 2017
This work aimed to analyze possible differences in growth patterns on Eucalyptus species and to identify the determinants climatic variables on the growth.
Nerison Luís Poersch, Luiz Roberto Terra França Filho, Eder Pereira Miguel, Gustavo Henrique Miguel da Cruz, Karine Letícia Francisquette, Sâmela Beutinger Cavalheiro   +5 more
doaj   +3 more sources

Aclimatização ex vitro de plantes propagadas pela enxertia in vitro de clones de Eucalyptus urophylla x E. grandis Ex vitro acclimatization of plants propagated by in vitro grafting of Eucalyptus urophylla x E. grandis clones

Revista Árvore, 2007
Este trabalho teve como objetivo avaliar a sobrevivência e o crescimento durante a etapa de aclimatização ex vitro de mudas de dois clones de Eucalyptus urophylla x E. grandis obtidas pela técnica de enxertia in vitro.
Fabiana Schmidt Bandeira, Aloisio Xavier, Wagner Campos Otoni, Elisonete Ribeiro Garcia Lani   +3 more
doaj   +1 more source

Organellar carbon metabolism is co-ordinated with distinct developmental phases of secondary xylem [PDF]

, 2019
Subcellular compartmentation of plant biosynthetic pathways in the mitochondria and plastids requires coordinated regulation of nuclear encoded genes, and the role of these genes has been largely ignored by wood researchers. In this study, we constructed
Fierro Gutierrez, Ana Carolina Elisa, Marchal, Kathleen, Mizrachi, Eshchar, Myburg, Alexander A, Pinard, Desré   +4 more
core   +2 more sources

Cellular antioxidant activities of polyphenols isolated from Eucalyptus leaves (Eucalyptus grandis×Eucalyptus urophylla GL9)

Journal of Functional Foods, 2014
An activity-guided isolation process was performed to identify the antioxidant constituents of Eucalyptus leaves (Eucalyptus grandis × Eucalyptus urophylla GL9). The ethyl acetate extract showed the highest activity in scavenging DPPH radical among five different fractions extracted from 70% aqueous ethanol extract of Eucalyptus leaves.
Yunjiao Chen, Junjiang Wang, Yangwen Ou, Hongzhang Chen, Suyao Xiao, Guo Liu, Yong Cao, Qingrong Huang   +7 more
openaire   +2 more sources

Termorretificação e Colorimetria da Madeira de Eucalyptus grandis [PDF]

Floresta e Ambiente, 2014
A termorretificação pode ser utilizada na alteração da cor da madeira, tornado-a semelhante às madeiras tropicais de maior valor agregado. O objetivo deste trabalho foi avaliar as alterações colorimétricas na madeira de Eucalyptus grandis submetida a 140, 170, 200 e 230 °C, por três, cinco e sete horas.
Zanuncio, Antônio José Vinha, Farias, Elias de Sá, Silveira, Teodorico Alves da   +2 more
openaire   +4 more sources

Effet de l'hybridation interspecifique sur la teneur et la composition chimique des huiles essentielles d'eucalyptus cultivés au Maroc [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2002
Interspecific hybridization effect on the content and the chemical composition of essential oils of eucalyptus grown in Morocco. In this work, the quality and quantity of the leave essential oils of five Eucalyptus hybrids were determined. The crosses of
Farah A., Fechtal M., Chaouch A.
doaj  

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, Volume 101, Issue 3, Page 1091-1119, June 2026.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source