Home Publications Tree Improvement and Genetics Southern Forest Tree Improvement Conference 29th Southern Forest Tree Improvement Conference (2007) Douglas-fir Breeding: Past Successes and Future Challenges (Invited Papers)

Douglas-fir Breeding: Past Successes and Future Challenges (Invited Papers)

Breeding programs in Douglas-fir are among the most extensive in the world, with more than 4 million progeny from nearly 34,000 selected parents growing on almost 1,000 test sites in the Pacific Northwest (PNW). The PNW is an environmentally diverse, mountainous region with large tracts of public and private forestlands, and a public with strong environmental values. Not surprisingly, these factors influence forest management and tree breeding. Compared to the southern pines, Douglas-fir breeding programs typically maintain greater genetic diversity, make selections at older ages, use simpler mating designs, rely more heavily on open-pollinated seed orchards, and do not anticipate the widespread use of clonal forestry or genetically engineered trees.


Download this file:

PDF document Download this file — PDF document, 221Kb

Details

Author(s): Glenn T. Howe, J. Bradley St. Clair

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 2007

Personal tools