. The Alexandria Research Center. Forests and forestry Research. Stimulating Seed Production A considerable portion of the cutover longleaf pine area supports scattered seed trees singly or in groups. Natural reseeding has failed, in many cases, because good seed years have been few and far between. There is hope, however, that these seed trees can be made to yield larger and more frequent seed crops. The following treatments are under test with both longleaf and slash pines:. Partial girdling. Two half rings are cut around the tree down to the wood. The rings are about 1-1/2 inches wide and a
. The Alexandria Research Center. Forests and forestry Research. Stimulating Seed Production A considerable portion of the cutover longleaf pine area supports scattered seed trees singly or in groups. Natural reseeding has failed, in many cases, because good seed years have been few and far between. There is hope, however, that these seed trees can be made to yield larger and more frequent seed crops. The following treatments are under test with both longleaf and slash pines:. Partial girdling. Two half rings are cut around the tree down to the wood. The rings are about 1-1/2 inches wide and are placed on opposite sides of the trunk, one about 4 inches higher than the other. Strangulation at stump height. A tight metal band is bolted around the tree about 12 inches above the ground (fig. 9). Strangulation high on the bole. Metal bands are bolted around the tree in or just below the live crown. Hormone treatment. A 0. 2-per- cent solution of 2, 4-D is put into an intermittent frill around the tree about 2 feet above the ground. The first three of these treatments have been used with success in Europe. The hormone treatment is new. The study was installed in 1952. Figure 9. --Fastening a tight metal band around the tree at stump height seems to stimulate cone production. (Photo by Elemore Morgan) - 12 -. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern Forest Experiment Station (New Orleans, La. ); Cassady, John Thomas, 1909-; Mann, W. F. [United States] : USDA Forest Service, Southern Forest Experiment Station
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