heterotic

/ˌhɛtəˈrɑtɪk/
adjective
  1. Relating to or exhibiting heterosis, the improved or increased function of a hybrid offspring compared to its parents.
    • Farmers often choose heterotic corn hybrids for higher yields.
    • Breeders look for heterotic combinations to produce stronger livestock.
    • The heterotic effect in these tomato plants made them more resistant to disease.