In 1922, Dr. Lewis Knudson, a scientist at Cornell University in the United States, discovered that when the seeds were placed in a mixture of water, sugar, and agar (a jellylike substance extracted from seaweed), they sprouted and flourished.
Aastal 1922 avastas Ameerika Ühendriikide Cornelli ülikooli teadlane dr Lewis Knudson, et vee, suhkru ja agari (merevetikaist saadav želatiinitaoline aine) lahus on see, milles orhideeseemned idanema hakkavad.