Results 11 to 20 of about 2,586,026 (293)
INFLUENCE OF PLANT SPACING ON THE BARK PROPERTIES OF A Eucalyptus CLONE [PDF]
For several wood uses, such as pulp, paper and charcoal, the presence of the bark is undesirable, compromising production. Thus, this study aimed to evaluate the influence of different plant spacings on the properties of the bark of a clone of Eucalyptus
Maria Fernanda Vieira Rocha +5 more
doaj +3 more sources
Lignans from bark of the Olea plants. I.
Four new lignans, (+)-1-acetoxypinoresinol [(1S, 2R, 5R, 6S)-1-acetoxy-2, 6-bis (4-hydroxy-3-methoxyphenyl)-3, 7-dioxabicyclo [3. 3. 0] octane] (1), (+)-1-hydroxypinoresinol (2), (+)-1-acetoxypinoresinol 4"-O-methyl ether (3) and (+)-1-hydroxypinoresinol 4"-O-methyl ether (4), and two known lignans, (-)-olivil (5) and (+)-cyclo-olivil (6), were ...
TSUKAMOTO, HIROKI +2 more
openaire +3 more sources
Induced terpene accumulation in Norway spruce inhibits bark beetle colonization in a dose-dependent manner [PDF]
Background: Tree-killing bark beetles (Coleoptera, Scolytinae) are among the most economically and ecologically important forest pests in the northern hemisphere.
Anna-Karin Borg-Karlson +29 more
core +2 more sources
Priorities for Bark Anatomical Research: Study Venues and Open Questions
The bark fulfils several essential functions in vascular plants and yields a wealth of raw materials, but the understanding of bark structure and function strongly lags behind our knowledge with respect to other plant tissues.
Ilana Shtein +6 more
doaj +1 more source
Morphological correlates of fire-induced tree mortality in a central Amazonian forest. [PDF]
Tree characteristics were recorded from 2829 standing trees in 24 0.25-ha terra firme forest plots in central Amazonia, 3 y after a surface fire had swept through the study area.
Peres, Carlos A. +2 more
core +5 more sources
Insecticidal Effect Of Adansonia digitata Stem Bark And Leaf Powders On Dinoderus porcellus
This study evaluated insecticidal activity of different doses of Adansonia digitata stem bark and leaf powders on yam beetles dinoderus porcellus. Obtained plant parts from Federal colloge of Forestry, Jos were pulverized into powders.
W.C. John +5 more
doaj +1 more source
Background Plants are attacked by diverse insect and mammalian herbivores and respond with different physical and chemical defences. Transcriptional changes underlie these phenotypic changes. Simulated herbivory has been used to study the transcriptional
J. S. Nantongo +6 more
doaj +1 more source
2-methyl-3-buten-2-ol: a pheromone component of conifer bark beetles found in the bark of nonhost deciduous trees [PDF]
Volatiles from bark of aspen,Populus tremulaL. and two species of birch: silver birch (Betula pendulaRoth.) and common birch (B. pubescensEhrh.), were collected by direct solvent extraction and aeration of both newly cut bark chips and undamaged stems in
Qing-He Zhang +8 more
core +1 more source
The Bark of the Spruce Picea jezoensis Is a Rich Source of Stilbenes
Stilbenes are plant phenolic secondary metabolites that show beneficial effects on human health and possess high antifungal activity against plant pathogens.
Andrey R. Suprun +3 more
doaj +1 more source
Population dynamics of tree-killing bark beetles [PDF]
During outbreak periods, the European spruce bark beetle and the North American mountain pine beetle are able to kill millions of coniferous trees. Throughout the 20th century, six outbreaks have occurred in Sweden and four in British Columbia, with ...
Kärvemo, Simon
core +1 more source

