A "Rothstein seed" does not appear to be a recognized term or concept based on the search results. The search results include detailed information about botanical seeds and their biology, including seed development, maturation, and dormancy, but none specify or define a "Rothstein seed." There is information about Dr. Steven Rothstein, a researcher in molecular genetics and plant biology focused on nitrogen metabolism and gene regulation in plants, but no direct connection to a specific type of seed named "Rothstein seed" was found. If you meant something else by "Rothstein seed"—such as a product, a concept named after someone named Rothstein, or something related to sports seeding (since there were sports-related seeds mentioned in the search results)—please clarify, and I can assist further. Otherwise, in the context of botany or plant biology, there is no established definition or concept known as a "Rothstein seed" at this time.