EFEITO DO ÁCIDO INDOLBUTÍRICO NO ENRAIZAMENTO DE ESTACAS DE LARANJEIRA CV. VALÊNCIA (Citrus sinensis (L.) OSBECK) SOB CONDIÇÕES INTERMITENTES DE NEBULIZAÇÃO

To evaluate the effect of five IBA concentrations, on valencia orange cuttings, collected at three dates, washed sand and rice husk ash were used as growing media. The results showed that treatments did not influence rooting; the sand was the best growing medium for callous formation, and the best IBA concentration for cylindric cuttings collected in May was 4500 ppm.