Title: Evaluation of some dendrometric characteristics of three clones of Hevea brasiliensis Muell Arg. (PR 107, PB 86, GT 1)
Abstract: The Hevea brasiliensisMuell Arg. (Euphorbiaceae) is grown for its latex from which natural rubber is extracted. However, rubber can be exploited as lumber and energy. To diversify the products from this species, a study of the dendrometric characteristics and quantification of the volume of extractable wood per tree was conducted in 3 clones (PR 107, PB 86 and GT 1) at Toupah in the south-east of Cote Ivory. The results show that with the exception of the height and the volume of useful bole, the dendrometric characteristics are homogeneous from one clone to another. The trees have a cylindrical trunk (Kf = 0.89 ± 0.02), branch out relatively high (5.68 ± 0.51 m) and thus offer a good part of the timber harvesting barrel. The growth rates continue in thickness (0,) lead to acceptable diameters of 40 to 45 cm at the end of the latex harvest. The average extractable volumes per tree are 0.464 ± 0.041 m 3 of timber, 0.519 ± 0.058 m 3 of energy wood and 0.983 ± 0.076 m 3 of hardwood. Rubber clones have dendrometric characteristics comparable to those of industrial reforestation species.
Hevea brasiliensis Muell Arg. (Euphorbiaceae) is grown for its natural latex. However, rubberwood timber can be used as lumber and wood energy. A number of clones were isolated (PR 107, PB 86 and GT 1) at Toupah, south-east Cote d'Ivoire. Results show that, except for height and volume of useful drum, Trees show a cylindrical trunk (Kf = 0.89 ± 0.02), branch at a relatively high level of the ground (5.68 ± 0.51 m), thus providing an important part of exploitable lumber drum. The rates of growth in thickness (0.7 to 1 cm yr -1) following late harvest of acceptable diameters from 40 to 45 cm. Extractable average volumes per tree were 0.464 ± 0.041 m 3 for lumber, 0.519 ± 0.058 m 3 for fuelwood and 0.983 ± 0.076 m 3 for strong wood. Rubber tree clones had dendrometric characteristics comparable to those of the industrial afforestation species.
Publication Year: 2019
Publication Date: 2019-04-27
Language: en
Type: article
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