摘要: Groundnut is a native New World crop. Early explorers found it cultivated extensively in both Mesoamerica and South America. Remnant pericarp (fruit hull) tissue recovered from archaeological sites Peru dates its purposeful agricultural use there at approximately 3900–3750 years before the present (YBP). No one certain how much earlier domestication occurred but probably first took place valleys of Parana Paraguay river systems Gran Chaco area