TY  - JOUR 
T1  - Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
JO  - Crop Breeding and Applied Biotechnology
A1  - Mendes, Udenys Cabral
A1  - Filho, José Branco de Miranda
A1  - Oliveira, Aurilene Santos
A1  - Reis, Edésio Fialho dos
SN  - 1984-7033
UL  - 10.1590/1984-70332015v15n4a40
VL  - 15 
Y1  - 2015
PB  - Brasil 
ER  -