Morphological, chemical, and physical characteristics of the ethiopian highland (yushania alpina) bamboo

ABSTRACT

This research paper aims to characterize and evaluate the morphological as well as the physical proper-ties of Ethiopian Y. Alpina bamboo based on the effect of age and height. The bamboo has been harvested in the Amhara region in the Injibara town in January 2020. Nine bamboo samples have collected at the age of 1, 2, and 3 years old. Bamboo Culm has been divided into three positions along with Culm height like bottom, middle, and top. Analysis of the significance of age and height on physical properties has been done using Stata.12 software with linear regression and ANCOVA. Both morphology and physical properties have been used to improve understanding of bamboo's performance used as a structural appli-cation, bamboo composite processing, fiber extraction process, bamboo laminated processing, and furni-ture making materials. Age of 1-year-old bamboo has high Culm diameter, wall thickness, Internode length compared to the age of 2 and 3 years old bamboo. When bamboo generates new shoots under the rhizome, new shoots generate and grow high morphological properties of bamboo compared to the previous old bamboo. Percentage of moisture content, shrinkage in wall thickness, and shrinkage in Culm diameter decrease when the age of bamboo increases. Furthermore, these properties have been decreased along with Culm height from bottom to the top position. Oven-dry density increase with the age of bamboo increase, whereas its property has been decreased along with Culm height from bottom to the top position. Cellulose content increase when the ages of Culm older, however, extractive and ash content decrease when the ages of Culm older. From the greatest to lowest of hemicelluloses, and lignin contents are at the ages of 2, 3, and 1 year-old respectively. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the 5th International Con-ference on Recent Advances in Material Chemistry.