A comparison of the submergence response of elongating and non elongating flood tolerant deep water rice

Abstract

Due to complete submergence the seedling height increased and the root activity decreased. The increment of seeding height was greater in elongating , tolerant type Hatipanjari as compared to less-elongating, tolerant type FR 13A and susceptible cultivation , Tulasi, Reduction of root activity was. however in Tulasi, followed by Hatipanjari and FR 13A . Shoot dry weight either ceased (FR 13A) or Decreased (Hatipanjari and FR 13A ) in submerged conditions. Shoot dry weight and root activity gradually increased in air-adapted plants and enhanced the possibility of survivality of both tolerant and non tolerant cultivars. under complete submergence, the elongation , tolerant cultivar did not manifest better survivality thsn the susceptible cultivar.