Robuta

https://www.uoguelph.ca/alliance/projects/improvement-ontario-hazelnut-focusing-winter-hardiness-tolerance-eastern-filbert-blight Improvement of Ontario hazelnut cultivars focusing on winter hardiness and pest tolerance, with an... winter hardiness pest tolerance improvement ontario hazelnut https://journal.subtropras.ru/en/archive/71/12/ Selection of sources of winter hardiness, resistance to cherry leaf spot and large sweet cherry... cherry leaf spot winter hardiness selection sources resistance