Faria, V.R. et al. 2009. Reciprocal recurrent selection to obtain interpopulation hybrids of popcorn. Pesquisa Agropecuaria Brasileira. 43, 12 (Jan. 2009), 1749–1755. DOI:https://doi.org/10.1590/S1678-3921.pab2008.v43.1030.