Effect of distilled water as control (DW for 20 h), gibberellic acid (GAᴣ for 20 h) and indoleacetic acid (IAA 20 h) imbibition, and pre-stress treatment of sub-lethal temperature (40°C for 1 h) on seedlings length of green gram under lethal-temperature stress. Vertical bars indicate standard error (n=3), and significant differences (P< 0.05) are marked with different letters.