Resumo

ALVARADO AGUAYO, Allan; MUNZON QUINTANA, Mónica  e  PILALOA DAVID, Wilmer. Comparative effect of three substrates on the propagation and growth of two sugarcane species of the Guadua genus. Rev. Inv. Cs. Agro. y Vet. [online]. 2021, vol.5, n.14, pp.179-191.  Epub 31-Ago-2021. ISSN 2664-0902.  https://doi.org/10.33996/revistaalfa.v5i14.109.

The reeds (family Poaceae) include the largest grasses in the world and are not usually conceived within technified production systems. Even so, they are a widely used resource for housing construction, animal corrals, handicrafts, and similar uses. Among the most commonly used reeds is the Guadua genus, with two predominant species: G. angustifolia and G. amplexifolia, which are native to the forests of South and Central America. This work analyzes the behavior of these two species in nursery conditions, propagated by basal shoots in three different substrates, in the area of El Vainillo, Guayas, Ecuador. The substrates used were: soil + river sand (T1), vermicompost + river sand (T2) and coffee husk + river sand (T3), all with a 1:1 ratio. Better propagation results were obtained in G. amplexifolia (78%) than in G. angustifolia (70%) with vermicompost. In both Guadua species, there were different patterns in the dynamics of the appearance of basal shoots, from sowing to the eighth week. In the substrates with sand and vermicompost, there were no significant differences in the length of shoots in G. amplexifolia, but there were with respect to the use of coffee husks. On the other hand, G. angustifolia in vermicompost presented greater growth, although the significant difference was noted until the eighth week. In all substrates used, G. amplexifolia had a greater amount of dry matter than G. angustifolia.

Palavras-chave : Basal shoot; bud; budwood; dry matter; vegetative propagation.

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