[1
]São Paulo Agency of Agrobusiness Technology (APTA); Midwest Regional/SAA; Av. Rodrigues
Alves, 4040 17030-000 Bauru São Paulo Brazil
[2
]São Paulo State Univ. (UNESP); College of Agricultural Sciences, Dep. of Crop Science,
Lageado Experimental Farm; P.O. Box 237 18610-307 Botucatu São Paulo Brazil