Assessment of Eucalyptus species and provenances for planting in the northwestern Paraná

Abstract

Reforestation to cope with growing demand of wood and to minimize the pressure in remnant natural forests is extremely important. Twelve species from different sites were planted in 49 plots in 3 m x 2 m spacing in randomized complete blocks design with four replications, on the Tamanduá Experimental Farm in Campo Mourão to identify the most productive species of Eucalyptus (Myrtaceae) and their provenance, in the Campo Mourão region, state of Paraná, Brazil, Stem diameter at breast height and total tree height were measured and survival percentages were recorded at the age of seven years. Stem volume was estimated by using a 0.5 form factor. E. grandis from Mogi Guaçu grew fastest and produced the highest wood volume, while E. nitens, E. paniculata, E. camaldulensis from Brasilândia and E. pellita 10.966 exhibited the lowest production. E. “cambiju”, E. robusta, E. camaldulensis 12.186, E. citriodora from Acesita seed production area, and E. maculata 11.249 had intermediate yields