1) “All living tissues and genetic materials (such as seeds or a piece of stem) from which new plants and organisms can grow”

2) “An expression used in a broad sense to denote the hereditary properties of an individual plant or plant population that are transmitted from one generation to another.”

References

1) Wattnem, T. (2016). Seed laws, certification and standardization: outlawing informal seed systems in the Global South. J. Peasant Stud. 43, 850–867. https://doi.org/10.1080/03066150.2015.1130702.

2) Copeland, L.O., McDonald, M.B., 1999. Principles of Seed Science and Technology. Springer US, Boston, MA. https://doi.org/10.1007/978-1-4615-1783-2