Silva, R. C. da, Grzybowski, C. R. de S., França-Neto, J. de B., & Panobianco, M. (2013). Adaptation of the tetrazolium test for assessment of sunflower seed viability and vigor. Pesquisa Agropecuaria Brasileira, 48(1), 105–113. https://doi.org/10.1590/S1678-3921.pab2013.v48.12600