| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
EP2 Hybrid Spruce Provenance Study planting vehicle |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Hybrid white spruce saplings in experimental planting with a vehicle in the background, in May 1968 |
| Date: | May-68 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
EP2 Hybrid Spruce Provenance Study planting |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | White spruce saplings, experimentally planted hybrid spruce, in May 1968 |
| Date: | May-68 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: | pruning |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | New branches growing from dormant buds on white spruce on July 23, 1963 |
| Date: | 7/23/1963 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: | pruning |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Pruned white spruce, in February 1963 |
| Date: | Feb-63 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
EP2 Hybrid Spruce Provenance Study planting regeneration |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Planted hybrid white spruce seedling with water setting around the tree in a low area, on May 14, 1958 |
| Date: | 5/14/1958 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
EP2 Hybrid Spruce Provenance Study planting personnel vehicle |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Hybrid white spruce planting with vehicle in the background, on April 25, 1958 |
| Date: | 4/25/1958 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: | release |
| Organisms: |
gray birch white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Weeding with sodium arsenite tabs. Tab being inserted in grey birch to release white spruce sapling, on August 2 1954 |
| Date: | 8/2/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU9 Compartment Management Study selection system timber stand improvement plot photo point |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | White spruce stand after first improvement cutting, photo point #5 (2 chains northeast of permanent sample plot 4/1) in MU9 on May 18 1954 |
| Date: | 5/18/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU9 Compartment Management Study selection system regeneration photo point |
| Organisms: |
balsam fir white spruce eastern white pine |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Seedlings of balsam fir, eastern white pine, and white spruce in an opening made about 12 years ago, photo point #4 in MU9 on May 18 1954 |
| Date: | 5/18/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU6 Compartment Management Study selection system marking photo point |
| Organisms: |
balsam fir white spruce eastern white pine |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Before cutting, larger balsam fir marked for cutting, eastern white pine and white spruce left, photo point #4 in MU6 on June 1953 |
| Date: | Jun-53 |