In family farming system, farmers and their families are responsible for agricultural work and for the management of small and medium property. Often, the low purchasing power of the majority and the lack of appropriate technical guidance make farmers adopt undesirable practices while growing maize. The range of satisfactory yields depends, among other factors, on a good soil fertility, seeding in appropriate times, an effective management of insect pests and diseases, and especially quality seeds, which have good yield potential, adaptability, tolerance or resistance to negative factors such as drought and pests. Since maize seeds sold in the market are expensive, a significant portion of these farmers use traditional seed corn, known as "storehouse seeds", which have been selected for several generations. Although often present interesting features, especially regarding the hardiness and adaptability, most of these materials shows less productivity and
they are especially more susceptible to attack by insect pests and diseases when compared to most modern cultivars. Although they do not achieve high levels of productivity when compared to hybrid seeds, variety corn seeds usually offer more satisfactory benefits ​​in production systems that adopt low or even intermediate levels of technology, a reality of the vast majority of properties family farming in Brazil. The variety maize seeds allow its multiplication by family farmers with the maintainance of their productivity and relatively low cost crop after harvest, by simply adopting good practices in the conduct of farming, coupled with some basic care, especially at harvest and in processing the production. In this sense, being able to produce their own seeds is a "green signal" for these farmers, who can
reassume this productive activity, and, moreover, a synonym for greater independence from the seed market. The multiplication of variety maize seed in rural communities generates the expectation of mutual cooperation through exchange and sale of these seeds among farmers.