1. São Paulo State Univ. (UNESP) College of Agricultural Sciences; Dep. of Crop Science; P.O. Box 237 18610-307 Botucatu São Paulo Brazil
2. UNESP College of Engineering; Dep. of Crop Science Food Technology, and Social-Economy; P.O. Box 31 15385-000 Ilha Solteira São Paulo Brazil
3. UNESP College of Agricultural Sciences; Dep. of Crop Science; P.O. Box 237 18610-307 Botucatu São Paulo Brazil
4. Brazilian Agricultural Research Corp. (EMBRAPA); Rice and Beans Research Center; P.O. Box 179 75.375-000 Santo Antônio de Goiás Goiás Brazil
5. Federal Univ. of Mato Grosso do Sul (UFMS); P.O. Box 112 79560-000 Chapadão do Sul Mato Grosso do Sul Brazil