Mudas de eucalipto produzidas a partir de miniestacas em diferentes recipientes e substratos

摘要

The objective of this work was to evaluate the quality of Eucalyptus grandis and E. saligna natural hybrid minicuttings, produced in tubes (50cc) and pressed blocks (40x60x7cm). The experiment was conducted in a completely randomized design, in a 2x7 factorial arrangement (2 clones and 7 treatments) with four replicates (192 minicuttings), in the Aracruz nursery, from July to September 2002. The following substrates were tested; carbonized rice husk + eucalyptus bark (AR), sugarcane bagasse + sugarcane filter cake (BT) and peat (T), for steckling production in two types of containers. The stecklings were evaluated for stem diameter and height, leaf area, shoot dry matter. The BT substrate in tubes did not give good results, different from when it was used in the pressed block system. The stecklings produced in pressed block system gave higher growth speed.