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 30, Number 4 (1979) → Is the Oscilloscope Technique Suitable for Predicting Survival of Planting Stock?

Is the Oscilloscope Technique Suitable for Predicting Survival of Planting Stock?

The oscilloscope technique offers little promise as a tool for predicting survival potential of bareroot seedlings of Douglas-fir and, probably, other western coniferous species. Although a peaked trace in fall or spring indicates poor survival for stored planting stock, a square signal does not guarantee survival of stored seedlings on severe sites. Conversely, a peaked signal does not imply that seedlings planted shortly after lifting will do poorly.


Download this file:

PDF document Download this file — PDF document, 138Kb

Details

Author(s): Catherine A. Askren, Richard K. Hermann

Publication: Tree Planters' Notes - Volume 30, Number 4 (1979)

Section: general

Volume: 30

Number: 4