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

Clonal Replacement as a Tool for Seed Orchard Managers – Year 3 Update

The objective of the current study is to test the feasibility of using topgrafting to replace all or much of the crown of ramets in loblolly pine seed orchards. Data have been presented on graft survival, scion quality and male and female flower production one year after topgrafting. Interstock effects were significant for both male and female strobili production. Updates on female and male strobili production as well as seed production from the first cone harvest will be presented. Interstock effects on flowering will be examined to determine if early trends are maintained.


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Author(s): Christopher L. Rosier, E. M. Raley

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