certation
noun
cer·ta·tion
(ˌ)sərˈtāshən
plural -s
: competition between male elements of different genotype for opportunity to fertilize available female elements especially as manifested by differential growth of pollen tubes
Word History
Etymology
Latin certation-, certatio contest, from certatus, past participle of certare to fight, contend, settle something by a contest, from certus certain