Horticultural plants VS agricultural crops
The horticultural crops, fruits, vegetables, ornamentals, beverages, medicinals, share some unique features compared to other agricultural crops, these include three levels of differences.
at the input / cultivation and management level: grafting, tree/plant pruning, most of horticultural trees have juvenile phase, asexual propagation for most species to retain good traits or useful mutations, requires controlled conditions and equipment.
at the output / product level: high economic values, almost all horticultural products need postharvest treatment.
at the research level: shallow research depth in both molecular studies and physiological studies, rich species diversity, complex traits (fruit, leaf, stem, root, flowers, et al.) to deal with.