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Proceedings of Past Forest Nursery Association Meetings:

Genetic Considerations in Propagating Diverse Tree Species
Jay H. Kitzmiller
1992: Fallen Leaf Lake, CA
Nursery managers are growing a wider diversity of plant species for ecological purposes.
These activities may affect the adaptation, diversity, and performance of lots. Managers
can exercise control by selecting and working with lots at different genetic levels: species,
seed zone, seed stand, parent phenotype, and even individual tree genotype. Judicious
mixing of genetic sources is a powerful tool to enhance the genetic diversity and
evolutionary potential of plantations. Selection for specific juvenile traits in the uniform
nursery environment can be very effective. The genetics of non-commercial tree species
can be developed to a working level quickly using biochemical markers, common gardens,
and knowledge from the major conifers. In general, the other species have more complex
genetic structures and are more specialized in their site and cultural requirements.
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