In ord- er to establish the selection conditions,these calli were cultured on the media with different pH values and aluminum concentrations to examine response to acid-aluminum.

• 并筛选出生长快、质地松散的愈伤组织系；在不同的 pH、铝浓度培养基中观察其生长情况；建立耐酸铝愈伤组织变异体筛选条件(pH 4.；5；Al~(+3)10 ppm)。