I. INTRODUCTION
Rice is the seed of the monocot plants Oryza sativa (Asian
rice) [1] [2]. In Asia, especially as a cereal grain, it is the most
widely consumed staple food for a large part of the world's
human population [3]. After corn, it is the grain with the
second-highest worldwide production, according to data for
2010 "Prod STAT" by FAOSTAT (Food And Agriculture
Organization Of The United Nations) Retrieved December
26, 2006).