@article{mendes_filho_oliveira_reis_2015,  title={Heterosis and combining ability in crosses between two groups of open-pollinated maize populations},  volume={15},  ISSN={1984-7033},  url={https://doi.org/10.1590/1984-70332015v15n4a40},  DOI={10.1590/1984-70332015v15n4a40},  number={4},  journal={Crop Breeding and Applied Biotechnology},  publisher={Crop Breeding and Applied Biotechnology},  author={Mendes, Udenys Cabral and Filho, José Branco de Miranda and Oliveira, Aurilene Santos and Reis, Edésio Fialho dos},  year={2015},  month={Oct},  pages={235–243} }