Relações entre variáveis climáticas com produção e enraizamento de miniestacas de eucalipto

The purpose of this study was to evaluate the degree of linear association among climate variables with the production and rooting of Eucalyptus minicuttings cultivated in two types of mini garden (sand bed and sub-irrigation tubes). CENIBRA data were used for minicutting rooting, number of minicuttings per ministump and climate monitoring data. The number of minicuttings produced per ministump and their rooting rate were correlated with climatic data (light, temperature and air relative humidity) .Temperature influences minicuting rooting in different ways, with the effect varying according with the clone and type of clonal mini garden. As for the number of minicuttings, temperature increase favors the production of minicuttings, regardless of the type of mini garden. Light influenced rooting and number of minicuttings positively , while air relative humidity had a negative effect, regardless of the type of mini garden evaluated. The data of this study indicates that increased light intensity and reduced air relative humidity favor minicutting rooting and the number of minicuttings produced by ministumps, as well.