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Home → Publications → Tree Improvement and Genetics → Southern Forest Tree Improvement Conference → 16th Southern Forest Tree Improvement Conference (1981) → Comparisons of Progeny in a Loblolly Pine Seed Production Area with Progeny of Plus Tree Selections

Comparisons of Progeny in a Loblolly Pine Seed Production Area with Progeny of Plus Tree Selections

Four progeny tests compared performances of progeny of Georgia Forestry Commission (GFC) seed orchard clones; a seedlot from a seed production area (SPA) in Warren County, Georgia, established by the Continental Can Company; and several commercial check lots. The clonal progenies consistently outranked the SPA lot and the commercial check lots for crown/height ratio at age 5 and for height, d,b.h., stem volume and stem straightness at age 15. There were few consistent differences for number of galls/ tree at age 5 or plot volume, percentage of rust-free trees, and survival at age 15. When all traits were considered, clonal progenies performed best as a group. Differences between the SPA lot and the commercial checks were not significant.


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Author(s): T. L. Farge, John F. Kraus

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1981

Section: Concurrent Technical Workshop