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Large Scale Seedbed Grafting and Seed Orchard Development

Our program began in 1954. The original mode of establishment was by grafting in February 1955, scions from initially selected parent trees on potted 1-1 seedlings. Ramets from additional selections were obtained by field grafting during the Spring of 1956. Greenhouse or lath-house grafts on potted stock result in initially high grafting success but this is hindered by lack of grafting space and post-planting problems. Root binding (Figure 1) and wind-throw in later years are two hazards that can be overcome with intensive care such as judicious root pruning, use of large containers, and optimum soil mixes. A too friable soil mix might require extra field watering until established, due to the possible fibrous root system produced while in the container. This extra attention tends to put a higher cost on each graft.


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Author(s): James C. Wynens

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1965