Figure 4.

Effects of aminoethoxyvinyl glycine (AVG), cobalt chloride (CoCl₂), and sliver nitrate (AgNO₃) on adventitious root development in cucumber explants under salt stress. The primary roots were removed from hypocotyl of five-day-old seedlings. Explants were incubated for five days with distilled water as control. Explants were incubated with 13 mM NaCl in three days after being treated with distilled water or 0.1 μM ethrel, 10 μM CaCl₂, 10 μM AVG, 20 μM CoCl₂, 10 μM AgNO₃, 10 μM AVG +10 μM CaCl₂, 20 μM CoCl₂ + 10 μM CaCl₂, 10 μM AgNO₃ +10 μM CaCl₂ for two days, respectively. The numbers (A) and root length (B) of adventitious root were expressed as mean ± SE (n = 3, 10 explants were used per replicate). Bars with different lowercase letters were significantly different by Duncan’s multiple range test (P < 0.05). Photographs (C) show hypocotyl explants after five days of the treatments indicated.