Influência de diferentes substratos nas produção de mudas de Peltophorum dubium (Sprengel) Taubert

Abstract

At Horto Botanico-UFSC, was conducted this experiment to verify the effect of fi ve substrats on seedling production of canafistula (Peltophorum dubium (Sprengel) Taubert. Complete randomized vlock design was used with different treatments as follows: clay soil + sandy soil mixture (control); clay soil + sandy soil + corrected fertilization; clay soil + sandy soil + cattle manure; clay soil + sandy soil + sugar cane filter press cake a.nd ckay soil + sandy soil + chicken manure, in identical proportion. The utilization of sugar cane filter press cake; produced stronger seedling with better root system than the other treatments in three different times of evaluation. The treatments with addition of chicken manure were better than the control and substrats with correction. High correlation coefficient among the parameters analized indicated that the seedling quality of canafistula could be determined by any of characteristics analizeds. The seedling obtained from the substrate with sugar cane filter press cake was 30 cm in height, 5,13 mm in stalk diameter, 3,49g in shoot dry mather and 0,90g in root dry mather, 177 days after germination. These values were extremely differentiated with treatment in control.