New roots on pine seedlings: Greenhouse tests with ponderosa pine seedlings indicate time of transplanting affects rooting ability of seedling
Edward C. Stone, University of California
Gilbert H. Schubert, U.S. Forest Service
California Agriculture 10(3):11-14. DOI: 10.3733/ca.v010n03p11.
Abstract Not Available – First paragraph follows:
Many cut-over forests in the California pine region are producing at much less than full capacity because of the practice of relying upon natural restocking by seed from the remaining trees. Some of these areas contain too few trees, some support trees of less desirable species, and some have been occupied by brush. If left as they are, many of these areas will require fifty to a hundred years before full production is achieved.
Edward C. Stone is Assistant Professor of Forestry, University of California, Berkeley. Gilbert H. Schubert is Forester in the California Forest and Range Experiment Station, U.S. Forest Service, Berkeley.
The above progress report is based on Research Project No. 1577.