Intellectual property rights protecting peasant/native seeds?

Law on IPRS was issued in 1997, Lei nº 9.456, de 25 de abril de 1997, regulamentada pelo Decreto nº 2.366, de 5 de novembro de 1997 see:  http://www.agencia.cnptia.embrapa.br/gestor/feijao/arvore/CONTAG01_118_131120039558.html

-Farmers may keep, exchange, or give as a gift their own local seeds (but may not sell uncertified seeds)

-Farmers not required to use only certified/registered/catalogued seeds

-National Policy for Agroecology and Organic Production adopted in 2012, explicitly recognizing the role of peasants’ own “creole” seeds

-2003 National Program for Food Acquisition has allowed farmers and peasant organizations to develop their own seed systems