The Sugraone grapevine is owned by Sun World, and senior vice president David Marguleas said: 'We continue to see increased demand for superior seedless brand grapes throughout Europe and other important markets. The nursery arrangement with Vitroplant enables Italian growers to obtain legitimate supplies of virus-indexed Sugraone grapevines.' New plants are subject to a propagation royalty. Producers are required to enter into a lease/production license agreement and ship their Sugraone grapes through a licensed export marketing company.