Grafting with epigenetically-modified rootstock yields surprise

Novel grafted plants—consisting of rootstock epigenetically modified to "believe" it has been under stress—joined to an unmodified scion, or above-ground shoot, give rise to progeny that are more vigorous, productive and resilient than the parental plants.

source https://phys.org/news/2020-10-grafting-epigenetically-modified-rootstock-yields.html