fruit grower vs cultivator

fruit grower and cultivator both are nouns.

Word	Noun	Adjective	Verb	Adverb
fruit grower	Yes	No	No	No
cultivator	Yes	No	No	No

As nouns, cultivator is a hypernym of fruit grower; that is, cultivator is a word with a broader meaning than fruit grower:

fruit grower: someone who grows fruit commercially
cultivator: someone concerned with the science or art or business of cultivating the soil

Other hypernyms of fruit grower include agriculturalist, agriculturist, grower, raiser.

fruit grower (noun)	cultivator (noun)
someone who grows fruit commercially	a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)
	someone concerned with the science or art or business of cultivating the soil