EVALUATION AND IDENTIFICATION OF WALNUT HEARTWOOD EXTRACTIVES FOR PROTECTION OF POPLAR WOOD

EVALUATION AND IDENTIFICATION OF WALNUT HEARTWOOD EXTRACTIVES FOR PROTECTION OF POPLAR WOOD

Blog Article

Walnut (Juglans regia L.) heartwood extractives were identified and their potential for protection of poplar wood was evaluated.Test specimens were prepared from poplar wood (Populus nigra L.) to meet BS 838:1961 requirements.

Samples were impregnated with heartwood extractive solution (1.5, 2.5, and 3.5% Analysis and Prediction of “AI + Education” Attention Based on Baidu Index—Taking Guizhou Province as an Example w/w in ethanol-toluene), followed by 5 hours vacuum desiccator technique to reach complete saturation.

Impregnated specimens were exposed to white-rot fungus (Trametes versicolor) for 14 weeks according to BS 838:1961 applying the kolle-flask method.The weight loss of samples was determined after exposure to white-rot fungus.The highest weight loss (36.96%) was observed for untreated control samples and the lowest weight loss (30.

40%) was Geological and hydrometeorological hazards affecting livestock production in Ethiopia: a systematic review of impacts, mitigation, and adaptation strategies measured in samples treated with 1.5% extractives solution.The analyses of the extracts using GC/MS indicated that major constituents are benzoic acid,3,4,5-tri(hydroxyl) and gallic acid (44.57 %).

The two toxic components in the heartwood are juglone (5.15 %) and 2,7-dimethylphenantheren (5.81 %).