ABSTRACT
Rice is the major source of food for more than 2.7 billion people and planted on nearly one-tenth of earth’s arable land. Of 130 million hectare of rice land 30% is subjected to salinity problems, 20% drought and 10% low temperature at high latitude and altitude areas were well documented in Japan (Shimono et al. 2007), Korea, North East and southern China, Bangladesh, India, Nepal and other countries (Lee 2001, Kaneda and Beachell 1974). In similar low temperature conditions severe yield loses were reported in Australia (Farrell et al. 2001), Italy and United States (Board et al. 1980).
