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Com objetivo de estudar o comportamento de mudas de três espécies de eucalipto produzidas em dois tamanhos de recipientes, foram instalados dois experimentos em viveiro florestal, ambos em delineamento inteiramente casualizado, esquema fatorial 3 x 2, (três espécies e dois tamanhos de tubetes), com 4 repetições. O primeiro experimento foi referente à produção das mudas no viveiro e o segundo consistiu na simulação de plantio em campo. As características avaliadas foram: altura, diâmetro, área foliar, número de folhas, massa seca da parte aérea, massa seca do sistema radicular e percentagem de deformação de raízes. As mudas de todas as espécies produzidas em tubetes de 180 cm³ apresentaram maior crescimento para todas as variáveis avaliadas. Nos tubetes de maior volume (180 cm³) as mudas ficam aptas para o plantio aos 60 dias, enquanto as provenientes de tubetes de menor volume (55 cm³) atingem o padrão mínimo exigido para o plantio no campo aos 120 dias. No experimento de simulação de plantio em campo foi verificado que as mudas produzidas em tubetes de 55 cm³ apresentaram menor crescimento em altura e diâmetro, menor massa seca da parte aérea e raiz e maior número de deformações de raízes, independente da espécie avaliada.Aiming to study the growth of seedlings of three eucalypt species produced in two sizes of containers and to verify their performance after two months of planting, two experiments were established at a forest nursery, both in a completely randomized design, factorial 3 x 2 (three species and two containers sizes), with 4 replicates. The first experiment was to evaluate the production of seedlings in the nursery and the second consisted of the field simulation. The characteristics evaluated were: height, diameter, leaf area, leaf number, shoot dry weight, root dry weight and percentage of deformed roots. The seedlings of all species produced in containers of 180 cm³ showed higher growth for all variables. In containers of larger volume (180 cm³) the seedlings are ready to be planted after 60 days, while those from containers at smaller volume (55 cm³) reach the minimum standard required for planting in the field only after 120 days. In simulation experiment in the field it was observed that seedlings grown in containers of 55 cm³ showed less growth in height and diameter, lower dry mass of shoots and roots and more deformed roots, independent of the species

Crescimento e ciclo de produção de mudas de Eucalyptus em recipientes