Properties of green and yellow varieties of coconut (Cocos nucifera L.).
1990
Espiloy Z.B. | Alipon M.A. | Maruzzo M.M. | Dionglay M.S.P.
The natural variation in wood quality arising from differences in anatomical, chemical, mechanical, and physical properties of green and yellow varieties of coconut was studied. The yellow variety had higher values in terms of fibrovascular bundle, frequency fiber length, cell wall thickness, relative density, compressive and bending strengths, hardness, shear, toughness, amount of hot water extractives, hollocellulose, and starch contents. On the other hand, the green variety had higher values in terms of vessel length, vessel diameter, moisture content, shrinkage, ash content, alcohol-benzene extractives, 1% NaOH solubility, lignin, pentosans, and silica content. However differences in the above properties were statistically insignificant between varieties except for the compressive and bending strengths and the shear and hardness tests on the tangential soft portions of the specimens. The green variety had higher shrinkage or more collapse than the yellow variety.
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