1. Centro de Ciências Exatas e Tecnológicas (CCET) da UNIOESTE, Research Team GROSAP Scholarship holder of CNPq, Cascavel PR. C.P. 711, CEP 85814‐110 Cascavel PR Brazil
2. Univ. of Missouri 214B Waters Hall Columbia MO 65211
3. USDA‐ARS, 245 Agricultural Engineering Building, Univ. of Missouri Columbia MO 65211