fructification vs ontogeny

fructification and ontogeny both are nouns.

Word	Noun	Adjective	Verb	Adverb
fructification	Yes	No	No	No
ontogeny	Yes	No	No	No

As nouns, ontogeny is a hypernym of fructification; that is, ontogeny is a word with a broader meaning than fructification:

fructification: the bearing of fruit
ontogeny: (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level

Other hypernyms of fructification include development, growing, growth, maturation, ontogenesis.

fructification (noun)	ontogeny (noun)
organs of fruiting (especially the reproductive parts of ferns and mosses)	(biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level
the bearing of fruit