1. Ph.D. Researcher, Agronomic Institute (IAC), Av. Theodureto de A. Camargo, 1500, CEP 13075-630, Campinas, São Paulo, Brazil.
2. Ph.D. Candidate, School of Agricultural Engineering, State Univ. of Campinas (FEAGRI/UNICAMP), Av. Candido Rondon, 501, CEP 13083-875, Campinas, São Paulo, Brazil (corresponding author).
3. Ph.D. Professor, Federal Univ. of Mato Grosso (UFMT), Rodovia Rondonópolis-Guiratinga, KM 06 (MT-270), CEP 78735-910, Rondonópolis, Mato Grosso, Brazil.