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Expression of some growth and wood property traits among Eucalyptus urophylla x grandis clones in Congo

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. Hobart : CRCTHF, pp. 89-92. ISBN 0-646-22904-4 CRTHF-IUFRO Conference, Hobart, Australie, 19 February 1995/24 February 1995.

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Abstract : 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. (Résumé d'auteur)

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 - Plant genetics and breeding
K10 - Forestry production

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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