| imageID: | 19994 |
| Description: | Cooperrider-Cassidy study |
| Keywords: | grazing regeneration Improvement study |
| Organisms: | ponderosa pine |
| Photographer: | Charles K. Cooperrider |
| Original collection id: | 269389 |
| Media: | black and white photo |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Quality: | 3 |
| Copyright: | 1929 |
| Location: | Fort Valley Experimental Forest; AZ; USA |
| Date(mm/yyyy): | 10/1929 |
| Comments: | Recovery of yellow pine from grazing injury--top from specimen 18" in height. History: Lowest portion of stem is 3 1/2" stub of grazed 1927 leader. On this stub developed 3 leaf sheath buds which grew into a 6" leader and 2 primary laterals 5" and 3 1/2", respectively, in 1928. Growth (2 1/2" and 3 1/2") on 1928 laterals was not injured in 1929. The 1928 leader formed a leader and 2 primary laterals in 1929, all of which were grazed to short stubs without leaves and which died, as is always the case with stems grazed to below the point of needle growth. Small shoot to right of dead stubs is growth from a latent lateral bud which would not have developed had the primaries been uninjured. Small tuft growth to right of dead stubs is from 1928 wood; it is characteristic of old wood buds formed after death of grazed current-year shoots. |
| Citation: | Use of this image is governed by Creative Commons CC BY. If you use the image, please include the following citation: Olberding, Susan D.; Huebner, Daniel P.; Edminster, Carleton B. 2007. Fort Valley Experimental Forest historical photographs. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. https://doi.org/10.2737/RDS-2007-0005 |
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