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|EFPG DAYS 2003||cerig.efpg.inpg.fr|
|Last update : June 19, 2003|
|7 - Genetic determinism of pulp and paper properties. Examples of maritime pine and poplar programs|
D. Da Silva Perez, P. Alazar, A. Berthelot (AFOCEL)
Pulp yield is known to be one of the keys for the profitability of a mill. The selection of vegetal raw material giving higher pulp yield is one of the most interesting pathways to increase pulp yield. There is therefore a great need to accelerate breeding in forest trees because of the long time for generating adults trees before testing their pulp and paper performances.
Wood properties are known to vary between species and among the genotypes within the same wood species. This variability is often heritable and thus presents an great opportunity to select wood giving better properties and consequently higher quality products. The coupling of traditional selection techniques, pulp and paper laboratory tests and new genetics-aided selection techniques is a great combination for improving the selection of new varieties.
In this presentation, the improvements for pulp yield obtained from the traditional selection programs on maritime pine and poplar in France are described. A brief description of the new selections tools and the application to these two wood species are also presented.