“…In one hand, other countries such as Taiwan (Wang, Hsu, & Lu, 2011), Spain (Gonzálvez, Armenta, & Guardia, 2011), Thailand (Kukusamude & Kongsri, 2018) and Italy (Brandolini et al, 2006) traceability of rice is under development, and for some kinds of rice, it has already been adopted. On the other hand, few studies were developed in Brazil (Borges, Gelinsky, Souza, Barbosa, & Batista, 2015;Kato, Fernandes, Bacchi, & Sarriés, 2018;Maione, Batista, Campiglia, Barbosa, & Barbosa, 2016). In all these studies, PCA proved to be a suitable tool to identify geographical origin (Brandolini et al, 2006;Cheajesadagul et al, 2013;Chung, Kim, Lee, & Kim, 2015), to discriminate organic and conventional grains (Borges et al, 2015;Brandolini et al, 2006), to find association maps of rice physiological disorders (Agrama & Yan, 2009).…”