The climate of the Okanagan Valley in British Columbia, Canada, is highly suitable for growing tree fruit and wine grapes, both of which are booming industries in the region. Most tree fruit, like wine grapes, are not one whole plant but composed of two parts: the upper portion (scion) that produces shoots and fruit, and the lower rooting portion (rootstock). The scion is majorly responsible for traits such as taste, fruit size and colour and has been the main interest to bre