Efeito do hidrogel no desenvolvimento de mudas de Eucalyptus camaldulensis dehnh sob diferentes períodos de irrigação

Abstract

Eucalyptus camaldulensis is an arboreal species, producing wood for various purposes. The objective of this study was to evaluate the effect of hydrogel use on the development of Eucalyptus camaldulensis seedlings in different irrigation periods. The experiment was carried out in a completely randomized design, in 5 x 2 factorial scheme (five irrigation times with and without hydrogel application), with four replications and four plants in the plot. The irrigation times evaluated were: every 5 days (T1); every 10 days (T2); every 15 days (T3); (T4) and every 25 days (T5). Was evaluated the leaf number (NF), collection diameter (DC), shoot length (CPA) , root length (CR), shoot dry matter (MSA), root dry matter (MSR) and IQD (Dickson quality index). Eucalyptus camaldulensis seedlings can be produced without the use of irrigation, within 10 days. The hydrogel seedlings maintained the turgidity in the leaves in all the treatments. The use of 4 g L-1 hydrogel does not favor the development of E. camaldulensis seedlings.