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During the period of 1950 through 2000, a green-revolution-based model mostly for commodities boosted global agricultural production. From the 70’s, this design became consolidated in Brazil and other countries because of policies and strategies by states and private groups. However, some doubts has been raised on its environmental and socioeconomic issues, in special for family farming. This study aimed to contribute by identifying changes and resistance in agricultural structures, systems and demographic aspects of this model and its adoption by farmers. It was carried out in the state of Paraná - Brazil, within the microregion of Toledo and in the northern pioneer area, which represent the history and diversity of this state about socioeconomic and human aspects, as well as technical development. It was based on statistics of agricultural censuses (1970, 1975, 1980, 1985, 1996 and 2006), population censuses (1970, 1980, 1991, 2000 and 2010) and municipal agricultural production data (1980-2012). Data from both areas were compared to each other and analyzed in face of state changes. There has been a decrease in farming properties and rural population, with an outstanding decline in the number of young people and women. Moreover, results showed a large reduction of properties with 20 to 50 ha, and an increase in those of up to 2 ha. Such decline is due to technological standard changes throughout the period, as well as recent grants offered to rural areas, as housing and leisure spaces. Both regions showed expansion of soybean plantations, but integrating distinctively to agriculture and, finally, family farming continuity, despite the intense changes

Recent changes in agrarian systems of the Microregion of Toledo and Northern Pioneer Territory in Paraná State, Brazil