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In vitro sugarcane plants (Saccharum spp.) are susceptible to environmental changes in theacclimatization phase, which affects their growth and development. The objective of thiswork was to evaluate the effect of the biostimulant Enerplant® on the survival and growth ofin vitro plants of sugarcane cv. C97-445 inex vitro acclimatization. Three solutions (0.6, 0.8and 1.0 ml l-1) of Enerplant® were evaluated and compared with the biostimulant VIUSID Agro®0.8 ml l-1. Two daily applications were made, the first three days after transplant and thenonce a week. The experiments were carried out in the dry season. The variables evaluatedwere survival at 15 days and morphophysiological at 55 days after transplantation. It wasverified that the application of Enerplant® increases the survival of sugarcanein vitroplantsand improves their growth. Treatment with 0.8 ml l-1 of this biostimulant had the greatest effect onin vitroplant growth underex vitro acclimatization conditions.