Visualization of the 3D structure of the graft union of grapevine using X-ray tomography

► X-ray tomography was used to study the graft interface in grapevine. ► The structure of the tissues of the graft interface could be visualized. ► Differences between “good” and “bad” quality grafts were evident. ► It is the first time, that the junctions between scion and rootstock are revealed in 3D. ► This could be a novel method to evaluate future rootstocks and scion genotypes.