Fen, L.L., Ismail, M.R., Zulkarami, B., Rahman, M.S.A. and Islam, M.R. 2015. Physiological and molecular characterization of drought responses and screening of drought tolerant rice varieties . Bioscience Journal. 31, 3 (May 2015), 709–718. DOI:https://doi.org/10.14393/BJ-v31n3a2015-23461.