Temperature dependencies of stem dark respiration (R(d)) and light-driven bark photosynthesis (A(max)) of two temperate tree species (Fagus sylvatica and Betula pendula) were investigated to estimate their probable influence on stem carbon balance. Stem R(d) was found to increase exponentially with increasing temperatures, whereas A(max) levelled off or decreased at the highest temperatures cho...

The viability of composting as a practical alternative for disposal of the large quantities of organic wastes generated by municipalities, industry and agricultural procesSing depends, to a large degree, on adequate local markets for fished compost. In m y areas, the use of composts as soil ameadments in nearby agridtural fields offqs a large potential mark&. The benefits of adding stabilized o...

The utilization of compost vineyard wastes as suppressive growing media against Fusarium wilt is a good alternative for the disposal and recycling of these organic wastes. Inoculation of biological control agents (BCAs) enhances the biocontrol activity of compost. In this experiment, vineyard compost was sampled at different stages during the composting process, rating the values of acceptabili...

Ficus bengalensis (commonly known as a Banyan tree) is an evergreen tree and belongs to the family Moraceae. Ficus benghalensis is an important medicinal plant that has a number of bioactive compounds. The whole plant of Ficus bengalensis (leaves, fruits and bark) are used as anti-oxidant, anti-cancer, anti-microbial properties and also used in the treatment of several diseases. The present rev...

Wood, bark, and the wax-coated seeds from Chinese tallow tree (Sapium sebiferum (L.) Roxb. syn. Triadica sebifera (L.) Small), an invasive tree species in the southeastern United States, were subjected to extractions and degradative chemical analyses in an effort to better understand the mechanism(s) by which this tree species aggressively competes against native vegetation, and also to facilit...

A method using QuEChERS sample preparation and an Agilent 6490 Triple Quadrupole LC/MS has been developed that provides rapid and sub-parts per billion (ppb) detection of synthetic yohimbine and yohimbe bark extract in dietary supplements. Using the chromatographic separation of the diastereomers of yohimbine, the synthetic compound can be distinguished from the tree bark extract. An Agilent 65...

Stem diameter is one of the most commonly measured attributes of trees, forming the foundation of forest censuses and monitoring. Changes in tree stem circumference include both irreversible woody stem growth and reversible circumference changes related to water status, yet these fine-scale dynamics are rarely leveraged to understand forest ecophysiology and typically ignored in plot- or stand-...

Artocarpus hirsutus Lam.,(Wild jack) belonging to the family Moraceae a large evergreen tree up to 70m height, found up to an altitude of 1200M in evergreen India. The wood is straight blackish brown in color; it is very strong tree and has main advantage of lightness. It is used for the treatment of ulcers, diarrhea and pimples. The present study includes Pharmacognostical studies of the bark ...

Both sexes of the bark beetle Dendroctonus brevicomis convert the (+) and (-) enantiomers of the tree terpene alpha-pinene to the corresponding enantiomers of trans-verbenol at about equal rates. (-)-trans-Verbenol inhibited the response of females, but not of males, to a mixture of attractive pheromone components. Since the female initiates the attack on a pine tree, (-)-trans-verbenol may pla...

Bark beetles (Coleoptera: Scolytidae) are common vectors of Ophiostoma species. These fungi include primary tree pathogens and important sapstain agents. In Mexico, Ips calligraphus and Dendroctonus mexicanus occur on many species of pine. Pinus maximinoi and P. pseudostrobus are the hosts of both species of insects. Little research has been done on ophiostomatoid fungi associated with pine bar...