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A aclimatização é uma etapa da micropropagação que inspira cuidados, pela dificuldade de transferir com sucesso as plântulas in vitro para a casa-de-vegetação. O objetivo do trabalho foi avaliar a eficiência de substratos à base de coco durante a aclimatização de bastão-do-imperador. As mudas, obtidas de cultivo in vitro, apresentavam, inicialmente, altura média de 6,2 ± 0,4 cm. Foram cultivadas em vasos de polipropileno, permanecendo em viveiro com 70% de luminosidade. Os tratamentos foram: areia, coco em pó, coco desfibrado, coco em pó + areia, coco desfibrado + areia e coco em pó + coco desfibrado. Cinco meses após o transplantio avaliaram-se as variáveis proporção de sobrevivência, altura da parte aérea, massa fresca, número de brotos, massa seca das raízes e pH dos substratos. Os substratos areia, coco em pó + areia e coco desfibrado + areia proporcionaram os melhores resultados para todas variáveis acima descritas, sendo recomendados para a aclimatização de bastão-do-imperador.Acclimation is a stage in micro-propagation that requires special attention due to the difficult process involving the successful transfer of in vitro plantlets to the greenhouse. The objective of this work was to assess the efficacy of coconut-based substrates in ginger flower acclimation. Seedlings from in vitro cultivation initially presented an average height of 6.2 ± 4 cm. They were grown in polypropylene vases kept in a nursery, with 70% of light. The following treatments were used: sand, coconut powder, de-fibered coconut, coconut powder + sand, de-fibered coconut + sand, and coconut powder + de-fibered coconut. Five months after transplantation, the following variables were analyzed: survival rate, aerial part height, fresh matter, number of seedlings, root dry matter, and substrate pH. Sand, powder coconut + sand and de-fibered coconut + sand showed the best results for all variables analyzed, and they are recommended for ginger flower acclimation

Aclimatização de bastão-do-imperador (<em>Etlingera elatior</em>) em substratos à base de coco