Multiple choice The three segments of plant science are: Horticulture, Landscaping, Agronomy Agronomy, Horticulture, Forestry Forestry, Pomology, Field Crop Horticutlure Agronomy, Ornamental Horticulture, Olericulture Reveal answer Fill a bubble to check yourself B Correct answer Explanation Plant science is generally divided into three major fields: Agronomy (field crops), Horticulture (garden/specialty crops), and Forestry (trees and timber).