Abstract
Induction of rooting in microshoots of Psoraleacorylifolia was achieved within 6–8 days of cultureon half-strength basal Murashige and Skoog's(1962) medium supplemented with 0.005–0.01 mg/lindole-3-acetic acid (IAA) and 2% (w/v) sucrose. Rooting was drastically reduced and friable callusformed at the cut end of the microshoots when themedium was supplemented with a higher concentration ofauxin. Rooting was totally inhibited when themicroshoots were cultured in vitro undercontinuous light. However, the maximum percentage ofmicroshoots rooted when incubated in continuous lightfor 4 weeks before transfer to the rooting media.Peroxidase activity increased considerably duringroot induction indicating a key role of peroxidase inrooting of microshoots of Psoralea corylifolia invitro.
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