Lodgepole Pine Cuttings : Mass Production Technology for Genetically Improved Fast Growing Forest Tree Species

Nangis

Association Foret-Cellulose Paris, IUFRO

1992

S. 105-111

12 Lit. Ang.

Bandaufführung

13158

76031

For many species the lack of old experiments is likely to be the limiting factor for clonal forestry when technology improves. Field trials with clones are important for research and may constitute a powerful tool for breeding. A system for producing clones of lodgepole pine with rooted cuttings for field trials is described. It is possible to make more than 100 copies of at least some clones. Rooting ability of cuttings of the same clone can be maintained for more than ten growing periods. Small field trials have been established. Management of ortets to get cuttings places demands on money, time, space and labor. Many clones seem difficult to multiply by rooted cuttings by the methods that we have practiced. Rooting success varies from time to time for unclear reasons. For these reasons we predict that rooted cutting will not be operative for use in commercial forestry with lodgepole pine and especially not with Scots pine, but rooted cuttings are likely to have a role in research and breeding.