TY  - BOOK
AU  - Jugenheimer, Robert W
TI  - Hybrid maize breeding and seed production 
T2  - FAO agricultural development paper
PY  - 1958///
CY  - Rome: 
PB  - Food and Agriculture Organization of the United Nations, 
KW  - Agriculture
KW  - Heterosis
KW  - Morphology
ER  -