Bouvet Jean-Marc, Baillères Henri.
1995. Expression of some growth and wood property traits among Eucalyptus urophylla x grandis clones in Congo.
In : Eucalypt plantations: improving fibre yield and quality : Proceedings of CRCTHF-IUFRO Conference, 19-24 February, 1995, Hobart, Tasmania, Australia. Potts B.M. (ed.), Borralho Nuno (ed.), Reid J.B. (ed.), Cromer R.N. (ed.), Tibbits W.N. (ed.), Raymond C.A. (ed.). CRCTHF, IUFRO
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Résumé : Ar experiment concerning a clonal test of E. urophylla*grandis was carried out in Congo and presented the following results. The study of variation along the stem showed that basic density decreased sharply from the base to 1.3 m and then increased as the sampling height increased. Consequently, the best prediction of the mean tree basic density was obtained with disks taken at 25 or 50% of the commercial height. A different result was obtained for the mean tree bark percentage which was correctly predicted with 3 samples. Genetic analysis indicated a higher heritability for basic density and low genetic correlations with volume, confirming results obtained from breeding populations of E. urophylla*grandis. Results relating to the method of sampling and selection strategy are discussed in this paper.
Mots-clés Agrovoc : Eucalyptus urophylla, variation génétique, expérimentation, croissance, propriété physicochimique, clone, densité, bois, héritabilité, amélioration des plantes
Mots-clés géographiques Agrovoc : Congo
Mots-clés complémentaires : Stratégie d'amélioration
Classification Agris : F30 - Génétique et amélioration des plantes
K10 - Production forestière
Auteurs et affiliations
- Bouvet Jean-Marc, CIRAD-FORET (COG)
- Baillères Henri, CIRAD-FORET-BOIS (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/537263/)
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