In vitro micropropagation and mass multiplication of Stevia rebaudiana Bertoni

Abstract

Stevia rebaudiana Bertoni, an ancient perennial herb produces steviol glycosides including stevioside and rebaudioside-A that are valuable as low calorie sweeteners, about 300-400 times sweeter than saccharose. Conventional propagation methods are not produce adequate planting material. Micro propagation is an imperative technology that could be extensively exploited to meet the growing demands of elite planting material for commercially cultivated. The prime objective of this study was to established standard protocol for in vitro regeneration and mass multiplication in Stevia. In present investigation, different concentrations of Auxin and Cytokinin were tried for optimization of shoot initiation, shoot multiplication, root initiation and callus induction of Stevia from different explant. BAP and IBA (1.0+0.5) mg/l, IBA (2.0) mg/l shows promising results of shoot multiplication and root initiation respectively.