Horticulture -- About
Ancient Pig DNA Study Sheds New Light On Colonization Of Europe By Early Farmers -- ScienceDaily (4 September 2009)
Characteristics
of Domesticated Plants -- Kevin S. Beach
The Core Historical Literature of Agriculture -- Albert R. Mann Library, Cornell University
Global Horticulture Initiative (GlobalHort)
History of Horticulture -- Ohio State University
Horticulture & Landscape Architecture [including plant origins and distribution] -- Purdue University
HORTIVAR: The Food and Agriculture Organization (FAO) Horticulture Cultivars Performance Database -- The Food and Agriculture Organization (FAO) (Hortivar is FAO´s database on performances of horticulture cultivars in relation to agro-ecological conditions, cultivation practices, the occurrence of pests and diseases and timing of the production)
International Society for Horticultural Science (ISHS)
National Agricultural Library -- United States Department of Agriculture