| Collection: | Southern Research Station Historical Documents and Images |
| Keywords: |
experimental forest natural area |
| Organisms: |
shortleaf pine loblolly pine |
| Location: | Crossett Experimental Forest; Ashley County; Arkansas |
| Description: | Caption reads: "The unmanaged shortleaf-loblolly pine hardwood forest. Net sawlog growth per unit of growing stock has been only half as much as on the managed compartments." |
| Date: | 1950s? |
| Collection: | Southern Research Station Historical Documents and Images |
| Keywords: |
experimental forest tree improvement genetics hybrids |
| Organisms: |
shortleaf pine slash pine |
| Location: | Crossett Experimental Forest; Ashley County; Arkansas |
| Description: | Caption reads: "An example of hybrid vigor in southern pine. These are 1-1 seedlings raised in the Crossett nursery. All seedlings were less than 6 inches tall when transplanted last February. On the left: (1) are two seedlings of open-pollinated slash pine. From the same parent tree but pollinated with shortleaf are the seedlings (2) of a slash x shortleaf hybrid. No. 3 represents two seedlings of a shortleaf x slash cross which are taller than the two shortleaf pine controls (4). No. 3 and 4 are from the same parent tree. Hybrids No. 2 are 6 to 8 inches taller than the female parent controls and about 16 to 18" taller than the male parent controls. Note also the branchiness of the hybrids and their intermediate needle length. Pedigrees (1) A1-9 (C x wind); (2) A1-8 (C x E); (3) A1-10 (E x C); and (4) A1-12 (E x wind)." |
| Date: | 1950s |
| Collection: | Southern Research Station Historical Documents and Images |
| Keywords: | thinning |
| Organisms: | shortleaf pine |
| Location: | Winn Parish, Louisiana |
| Description: | Caption reads: "Mayes D 1. Shortleaf pine. Winn Parish, La., reach from Urania. Before thinning in 1920." |
| Date: | 1920 |