Desenvolvimento de mudas de bromélias em resíduos orgânicos e industriais

Abstract

Bromeliads are commonly used for ornamental and landscaping purposes, and there is a lack of knowledge about farming techniques and ideal substrate, leading to extractive exploitation of these species in their natural habitat. Thus, proposals for reuse of these wastes can solve problems of contamination of the environment and simultaneously serve as soil conditioner. The objective of this study was to evaluate the development of seedlings of the bromeliad Neoregelia tigrina (Ruschi) in organic and industrial waste. The treatments were: 100% solid organic waste; 100% pine bark; 100% coconut fiber; 75% coir and 25% waste; 50% coir and 50% waste; 25% coconut fiber and 75% waste; 75% pine bark and 25% waste; 50% pine bark and 50% waste; 25% pine bark and 75% residue. The statistical design was completely randomized (CRD) with three replications and three plants per plot. Statistical analyzes show significance by the Scott Knott test (p <0.05). As alternative substrates the pine bark and coconut fiber substrates stood out statistically for having low cost and easy accessibility for ornamental producers. Pure waste should not be used to produce bromeliads. Bromeliad seedlings of Neogerelia tigrina (Ruschi), when grown in substrates containing 100% pine bark, showed the best results on the number of leaves, shoot growth, fresh shoot weight, root length and root dry mass.