heterosis

/het-uh-roh-sis/US // ˌhɛt əˈroʊ sɪs //UK // (ˌhɛtəˈrəʊsɪs) //

异形反应,异质性,异形现象,异种反应

Definitions

n.名词 noun

1
Genetics.
- : the increase in growth, size, fecundity, function, yield, or other characters in hybrids over those of the parents.