IMPROVING COLD STRESS TOLERANCE IN RICE SEEDLINGS

Abstract

   Cold stress has become problematic for rice seedling production in many sub-tropical areas, including in Bangladesh. Cold stress causes poor germination, stunted seedlings, chlorosis or withering, and limited tillering. Application of various exogenous stimulants metabolically prepares plants to fight against cold stress. This review summarized the role of different exogenous stimulants in mediating cold tolerance in rice seedlings. Seed priming or seedling treatment with exogenous stimulants can be promising approach to improve cold stress tolerance. However, additional research should be conducted to reveal the molecular mechanisms, as well as field level trials should be conducted to determine field level applicability.