Open Access Research Paper Views (653) Demarcating day-light-length from temperature effects in PGMS rice using back tracking method Njiruh Paul Nthakanio, Xue Qingzhong Int. J. Agron. & Agric. Res. 5(5), 40-52, November 2014. Keywords: Critical Sterility Point, Forward tracking, PGMS gene, Rice, Short day Details