A propagação vegetativa exige maior controle sobre o substrato, tendo reflexo qualitativo e quantitativo dentro de toda cadeia produtiva de mudas até o plantio. Este trabalho teve como objetivo avaliar a rizogênese e qualidade de mudas clonais de eucalipto produzidas em três diferentes substratos comerciais com e sem incorporação do hidrogel. A pesquisa foi realizada no viveiro da empresa R&S Florestal, Planaltina, Distrito Federal. Para a produção das mudas foram utilizados os substratos comerciais: Vivatto Slim Plus , Bioplant e Tropstrato Florestal , com e sem hidrogel (2 g L -1 ) da marca Forth Gel , e o material genético (miniestacas) utilizado foi o clone VM01. Foi utilizado o delineamento inteiramente casualizado (DIC), com seis tratamentos em esquema fatorial 3x2 (três tipos de substrato x presença e ausência de hidrogel), com quatro repetições. Aos 35 dias após a emergência (DAE) avaliou-se a rizogênese das miniestacas e aos 101 DAE foi avaliado o desenvolvimento das mudas. A eficiência do hidrogel para a melhoria da qualidade da rizogênese das miniestacas e desenvolvimento das mudas depende das características físicas e químicas dos substratos.Palavras-chave: minisestaquia, hidrogel, análise de substratos. Abstract:Vegetative propagation requires greater control over the substrate, having a qualitative and quantitative reflection within the entire seedlings production chain until the planting. This work aimed to evaluate the rooting and quality of clonal eucalyptus seedlings grown on three different commercial substrates with and without hydrogel incorporation. The research was carried out at the nursery of the R&S Florestal company, Planaltina, Federal District. For producing the seedlings, the following commercial substrates were used: Vivatto Slim Plus , Bioplant and Tropstrato Florestal , with and without hydrogel (2 g L -1 ), Forth Gel , and the genetic material (mini-cuttings) used was the clone VM01. A completely randomized design was used, with six treatments in a 3x2 factorial scheme (three types of substrate x presence and absence of hydrogel), with four replications. At 35 days after cutting, the rooting of the mini-cuttings was evaluated, and the seedlings development was evaluated at 101 DAE. The hydrogel efficiency for improving the rooting quality of mini-cuttings and seedlings development depends on the physical and chemical properties of the substrates.
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