Cultures were transferred in a growth chamber at 22 ± 2◦C under a 16-h-lightlight photoperiod at 30 mol m−2s−1 photosynthetic active radiation(PAR) supplied by Philips TLD 36 W/33 cool-white fluorescentlamps (standard growth conditions).
The rooting medium (ARM) contained the same vitamins andglycine concentrations as APM, half-strength MS salts, but FeSO4at full strength, 2.5 M IBA as the only plant growth regulator,and 58.4 mM commercial sucrose instead of sorbitol