alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

stratify - render fertile and preserve by placing between layers of earth or sand; "stratify seeds"

knock up, prang up, bang up, impregnate - make pregnant; "He impregnated his wife again"

impregnate - fertilize and cause to grow; "the egg was impregnated"

cross-fertilise, cross-fertilize - cause to undergo cross-fertilization; "Mendel cross-fertilized different kinds of beans"

cross-pollinate, pollenate, pollinate - fertilize by transfering pollen

alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"