Diversidade Arbórea e Potencial de Produção de Óleo Essencial de Eugenia uniflora L. e Myrcia multiflora (Lam.) Dc. no Município de Turvo-PR

Abstract

This study aimed to learn more about the flora of the city of Turvo, Paraná, species by analyzing the phytosociological survey, and also set the goal of linear regression equations for biomass and oil yield of leaves for the species Eugenia uniflora L. and Myrcia multiflora (Lam.) DC. The phytosociological survey done in Turvo used the method of distribution grid units on plots of 20 x 50 m, as a result had a high level of diversity with Shannon index of 3.71 nats / individuals with an absolute density of 25 ind. / ha to pitangueira and 4.17 ind. / ha to Guamirim. The trees to fit the allometric models were chosen according to the pruning work of farmers. For determination of dry biomass and yield of essential oil were used twenty-three trees that were identified, measured and extracted leaves. After the extraction of essential oil of the leaves was calculated that the average yield was 14.68 ml / individual for Surinam cherry and 30.01 ml / individual Guamirim.Was made the analysis of gas chromatography for four individuals of each species identified 39, 44, 49 and 48 chemicals to samples Guamirim and 23, 44, 39 and 48 chemicals to Surinam cherry, while the samples showed both qualitative and quantitative variations among species and among these individuals. Among the tested models to obtain estimates of foliage biomass chosen P= a+b.Cap?.dc, with a correlation coefficient of 0.86 and a standard error of estimate of 20.09%. The model chosen for the estimates of the essential oil yield was P=a+b. Cap?.dc R? = 0,89 e Syx% 18,11.