Agricultural markets should stay relatively immune to the turmoil that has seen commodities and equities markets tumble in recent days, analysts said Tuesday.

Spurred by a downgrade of the US government's credit rating by Standard & Poor's. and ongoing concerns about the growing European debt crisis, London's FTSE 100 Tuesday fell below 5000 for the first time since July 2010, while the Dow Jones Industrial Average fell 635 points Monday, the sixth-largest daily points drop in its history.