Scion refers to the above-ground portion of a grafted plant, typically consisting of a young shoot or stem that is grafted onto rootstock. In horticulture and agriculture, scion research focuses on understanding the growth, development, and characteristics of scions to improve the overall performance of grafted plants. This research may involve studying the genetics, physiology, and morphology of scions, as well as investigating factors that influence scion-rootstock compatibility and grafting success. Overall, scion research plays a crucial role in enhancing the productivity, quality, and resilience of grafted plants in various agricultural and horticultural systems.