RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Genetic Gain and Diversity of Seed Crops under Alternative Management Options

The objectives of this study were to evaluate the genetic gain and diversity of seed crops from a P. thunbergii clonal seed orchard under different management options, and to determine appropriate selection intensity (i.e., seed collection proportion, thinning rate) in selective harvest and genetic thinning. Additionally, the effects of gene migration from outside the orchard on genetic gain and diversity, and the consequences of alternative management options for seed production are also discussed. This paper reports on different alternatives for seed orchard management to increase genetic gain while maintaining adequate levels of genetic diversity.


Download this file:

PDF document Download this file — PDF document, 153Kb

Details

Author(s): K. S. Kang, Dag Lindgren, T. J. "Tim" Mullin, W. Y. Choi, S. U. Han, C. S. Kim

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 2005