COMPORTAMENTO E VARIAÇÃO DE PROCEDÊNCIAS DE Corymbia citriodora EM DIFERENTES TIPOS DE SOLOS

The behavior and provenance variation of Corymbia citriodora in different kinds of soil. The aim of this study was the selection of Corymbia citriodora provenances for three different kinds of soils occurring in Luiz Antônio Experimental Station, São Paulo, Brazil (Latossolo Vermelho, Areia Quartzosa and Latossolo Roxo). The provenance test wa established in 1983, with ten Corymbia citriodora provenances and one Eucalyptus grandis as control, original from a seed production area. The trials were established in a random block desig n with 11 treatments, three repetition and square plots with 25 trees. In 2008, there were evaluation s f height, diameter at breast height (DBH, 1.3 m) , stem form and survival. Significant differences amo ng soils and provenances were detected for the growth traits, stem form and survival in all those tudied soils. Significant provenance and soil interactions were not detected. All provenances sho wed higher growth in height and DBH in Purple Latosol. The control had a higher growth rate in re lation to highness, DBH and stem form than Corymbia citriodora provenances in all the studied soils, but it prese nted, generally, a lower survival rate than Corymbia citriodora provenances. Pederneiras (11) Corymbia citriodora provenance presented a higher performance in relation to highn ess and DBH in all kinds of soils, and Gilgandra (4) provenance, original from Australia, had the wo rst development. Therefore, Pederneiras (11) provenance is, therefore, the best choose for refor estations in all those studied soils.