- Specialized cultivation of trees and shrubs for their fruits, nuts, berries, or other edible products (e . g . , apple , breadfruit , coconut, cacao, coffee, orange, raspberry , tea, hops)
- Special care and tr eatment of each (e.g., grafting, picking, drying, packing)
- Silviculture (e.g., raising of trees for wood pulp, soil anchor, screens, shade, decoration)
- Organization of labor and production; etc.
Outline of Cultural Materials. George P. Murdock, et al., eds. New Haven, Conn. Human Relations Area Files, Inc. 1961. xxv, 164 p.