Souza, Thiago Corrêa de, et al. “Corn Root Morphoanatomy at Different Development Stages and Yield under Water Stress”. Pesquisa Agropecuaria Brasileira, vol. 51, no. 4, July 2016, pp. 330-9, doi:10.1590/S1678-3921.pab2016.v51.21596.