RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

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

Skip to content. | Skip to navigation

Home → Publications → Tree Improvement and Genetics → Lake States Forest Tree Improvement Conference → 13th Lake States Forest Tree Improvement Conference (1977) → Longleaf Pine Flowering in Response to Nitrogen Fertilization, Brand Girdling, Growth Substances, and Cultivation

Longleaf Pine Flowering in Response to Nitrogen Fertilization, Brand Girdling, Growth Substances, and Cultivation

Biweekly applications of 400ug GA4/7 plus 25ug NAA per bud from June 1 to August 10 promoted male and female flowering in longleaf pine (Pinus palustris Mill.), especially when combined with partial branch girdling and NH4N03 fertilization. Fertilization was the most effective single factor, and girdling was second. Cultivation had no significant effect on flowering. Vegetative bud growth was doubled by GA-NAA, independent of fertilizer stimulation.


Download this file:

PDF document Download this file — PDF document, 78Kb

Details

Author(s): R. C. Hare, E. B. Snyder, R. C. Schmidtling

Publication: Tree Improvement and Genetics - Lake States Forest Tree Improvement Conference - 1977