Pedigreed Pine for Naval Stores Production

Genetics of slash pine /

“…-Initial attempts to develop techniques for rooting of cuttings were made in connection with breeding highyielding strains for oleoresin yields (Curry 1943). These attempts were successful, but the percentage of rooting was low (Mitchell, Schopmeyer, and Dorman 1942). It was found that the ability to form roots varied among trees; 1-and 2-year-old seedlings rooted more readily than older trees, complex treatments were necessary, and rooting was better in the fall or winter than during other seasons.…”

Proceedings of the Fifth Southern Conference on Forest Tree Improvement, School of Forestry, North Carolina State College, Raleigh, North Carolina, June 11-12, 1959

“…Another important use of fertilizers is in connection with vegetative propagation. Until very recently, use of minerals has been confined mainly to treatment of cuttings, as, for example, in the complex concoctions employed by Mitchell, et al, (1942), in. their early successful work on propagating slash and longleaf pines in Florida, However, use of fertilizers to envigorate the ortet prior to severing the twigs or branches, or prior to mar cottage, appears to have been overlooked in theSouth until very recently, Enright (1959) shows convincingly that fertilizing of the parent plants prior to securing cuttings from them gave outstanding success with red pine, white pine and Norway spruce.…”

Tree improvement research at the Lake City, Florida, Research Center : a project analysis /

“…When the present Species Improvement program was initiated in 1941, its objectives were the selection and production of a strain of pine which was superior in naval stores products (33, [3][4]35).…”