Abstract

Regeneration of plantlets was achieved from cell suspension derived calli of cambial origin from mature 'elite' trees of Dalbergia sissoo. Callus proliferation occurred on the cambial tissue pieces cultured on MS medium supplemented with 2, 4-dichlorophenoxyacetic acid (2.0 mg/1) and benzylaminopurine (0.1 mg/l). Suspension cultures were obtained by transferring and agitating callus lumps in liquid medium composed as above. Aggregates of about 30 cells were plated on semi solid medium, which developed into calli. Shoot bud differentiation was observed in the calli transferred to medium devoid of auxin but containing 0.5-2.0 mg/1 benzylaminopurine. The isolated microshoots were rooted on modified MS medium containing low organic salts and auxins.

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