1. Federal University of Bahia; Salvador BA Brazil
2. Federal University of Paraiba; Areia PB Brazil
3. Embrapa Semiárido; Petrolina PE Brazil
4. State University of Southwest Bahia; Itapetinga BA Brazil
5. State University of Montes Claros; Janaúba MG Brazil
6. Federal University of Pará; Castanhal PA Brazil
7. Federal Institute Baiano; Salvador BA Brazil
8. Federal University of the Reconcavo of Bahia; Cruz das Almas BA Brazil