Survival and growth of hardwood seedlings following preplanting-root treatments and treeshelters

Abstract

The study evaluated the influence of root collar diameter, number of large lateral roots, preplanting-root treatments (biostimulant called Roots and a moisture loss retardant called supersorb) and tree shelters on 1-0 black walnut (Juglans nigra L.) and northern red oak (Quercus rubra L.) seedlings. Four years after outplanting, the survival of black walnut and northern red oak increased with the number of large lateral roots. The difference was significant (p < 0.05) for black walnut but not for northern red oak. Total seedling height was significantly affect by tree shelters. The height of black walnut and northern red oak was significantly better with tree shelters than without tree shelters. There were significant interactions between the number of large lateral roots and root treatments for height and diameter for both species and between root collar diameter and number of large lateral roots for the diameter of northern red oak.

Citation

Ponder, Felix, Jr. 1997. Survival and growth of hardwood seedlings following preplanting-root treatments and treeshelters. In: Pallardy, Stephen G.; Cecich, Robert A.; Garrett, H. Gene; Johnson, Paul S., eds. Proceedings of the 11th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-188. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 332-340