title: F1 heterosis and heterozygosity for isozymic structural loci in maize.
mesh_terms: D003433:Crosses, Genetic; D005796:Genes; D006579:Heterozygote; D006823:Hybrid Vigor; D006824:Hybridization, Genetic; D007527:Isoenzymes / Q000235:genetics*; D010944:Plants / Q000201:enzymology / Q000235:genetics*; D003313:Zea mays / Q000201:enzymology / Q000235:genetics*
chemical_list: D007527:Isoenzymes