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Filtragem por: O Criador Hermann, Richard K. Decade 1960-1969

The influence of seedbed microenvironments upon the establishment of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

O Criador:

Hermann, Richard K.

Resource Type:

Dissertation
Tree planting for control of gorse on the Oregon coast

O Criador:

Hermann, Richard K., Newton, Michael, 1932-, and Oregon State University. Forest Research Laboratory

Resource Type:

Technical Report
Effect of seedbeds on germination and survival of Douglas-fir

O Criador:

Hermann, Richard K., Chilcote, William W., and Oregon State University. Forest Research Laboratory

Abstract:

Germination and survival of Douglas-fir on seedbeds of unburned, lightly burned, and severely burned soil, charcoal, litter, and sawdust, exposed to 100, 75, and 25 percent of full light, were studied on a south-facing clearcutting in the Coast range of Oregon. Irrespective of exposure to light, germination was best on...

Resource Type:

Technical Report
Survival of planted ponderosa pine in Southern Oregon

O Criador:

Hermann, Richard K. and Oregon State University. Forest Research Laboratory

Abstract:

Planting techniques, size and age of seedlings, and protection against animals were investigated for their influence on survival of ponderosa pine at two sites in southern Oregon. Caging and mulching with paper were the most effective measures for reducing mortality. Preliminary trials prior to large-scale planting were recommended for determining...

Resource Type:

Technical Report
Artificial seeding of pine in central Oregon

O Criador:

Wagg, John William Bruce, Hermann, Richard K., and Oregon State University. Forest Research Laboratory

Resource Type:

Technical Report
A freezing apparatus for cold-tolerance tests of conifers

O Criador:

Wessel, William James, Hermann, Richard K., and Oregon State University. Forest Research Laboratory

Resource Type:

Technical Report