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 Planters' Notes Tree Planters' Notes Volume 23, Number 3 (1972) Unusual Ice Damage Suggests Extra Care Needed in Overwinter Cold Storage

Unusual Ice Damage Suggests Extra Care Needed in Overwinter Cold Storage

In the course of research into overwinter cold storage of conifer nursery stock at sub-freezing temperatures, we discovered a most unusual type of ice damage affecting some of the stored white spruce, Norway spruce, and balsam fir. The damage (figs. 1-4) involves a splitting of the leader or side branch tip due to the buildup of ice within the plant tissues. In the most extreme form, the ice splits the branch tip in half (figs. 1 and 2). In a milder form, the ice swells the stem, distorting it (fig. 3).


Download this file:

PDF document Download this file — PDF document, 727Kb

Details

Author(s): Ralph D. Nyland, H. Jack Irish

Publication: Tree Planters' Notes - Volume 23, Number 3 (1972)

Volume: 23

Number: 3