Prior efforts to incorporate bark or bark extracts into composites have met with only limited success because of poor performance relative to existing products and/or economic barriers stemming from high levels of processing. We are currently investigating applications for southern yellow pine (SYP) bark that require intermediate levels of processing, one being the use of carefully ground and c...

This paper reports on five years of observations in a case-control study examining the role of tree and site factors on the development of Phytophthora ramorum stem canker (sudden oak death) in coast live oak (Quercus agrifolia) and tanoak (Lithocarpus densiflorus). In September of each year from 2000 through 2004, we collected data on P. ramorum symptoms, tree condition, midday stem water pote...

The bark of black spruce was thermo-mechanically refined and used to manufacture binderless bark-based fiberboard with various pressing temperatures, times, and panel structures in order to utilize an abundant bark resource for a better value-added application. The test results indicated that it is technically feasible to manufacture binderless fiberboard with refined black spruce bark through ...

Ethanolic extract of bark of Azadirachta indica showed potent spermicidal activity when tested on rat spermatozoa in vitro. When the extract was applied in 1:1 and 1:2 ratio at tree different concentration using wet drop method, cent percent mortality of spermatozoa was observed within 10 seconds. 10% concentration of the extract was considered as an effective dose.

Tree bark is among the widely available and low-cost sorbents for metal adsorption in aqueous environments. A state-of-the-art review is compiled carrying out a comprehensive literature search on the biosorption of heavy metals in solution onto different bark species, including a characterization of bark structure and chemistry. The results indicate that biosorption has been gaining importance ...

Organic matter decomposition represents a vital ecosystem process by which nutrients are made available for plant uptake and is a major flux in the global carbon cycle. Previous studies have investigated decomposition of different plant parts, but few considered bark decomposition or its role in decomposition of wood. However, bark can comprise a large fraction of tree biomass. We used a common...

BACKGROUND Shyonaka (Oroxylum indicum Vent.; Bignoniaceae) root bark is one of the ingredients of dashamoola (a group of 10 roots), and is used for its anti-inflammatory and analgesic action in a number of compound formulations in Ayurveda. AIM Ayurvedic Pharmacopoeia of India (API) recommends using the stem bark instead of root bark. MATERIAL AND METHODS An attempt has been made to study t...

This study investigates wood density and anatomy of juvenile silver birch stems in Sweden, grown mixed conifer stands. Our aim is to investigate if fertilization provides increased growth, as well an eventual reduction stem density. Measurements basic density, ring width, cell wall thickness, vessels are analyzed for 20 trees. Bark pith radial sections using a light microscope the freeware Imag...