| Relationship | Probability of Success | Compatible Example | Incompatible Example |
| Intraclonal | piece of cake | bridge graft (scion from same tree for repair of girdled trunk) | |
| Interclonal/ Intraspecific | high | Macinstosh apple (fruiting variety of Malus domestica) / EM 9 (rootstock clone of M. domestica) | Red Maple cultivars (Acer rubrum*) / Red maple seedling (A. rubrum) |
| Interspecific/Intrageneric | moderate |
Sweet orange (Citrus sinensis) / Rough lemon (C. jambhiri) Sweet cherry (Prunus avium) / Tart cherry (P. cerasus) |
Almond (Prunus amygdalus) / Apricot (P. armeniaca) |
| Intergeneric/ Intrafamilial | unlikely |
'Old Home' pear (Pyrus communis)/ Quince (Cydonia oblonga) Blue spruce (Picea pungens) / Norway spruce (Picea abies) |
Bartlett pear (Pyrus communis 'Bartlett', Rosaceae family) / Quince (Cydonia oblonga, Rosaceae) Lilac (Syringa vulgaris, Oleaceae family)/ California privet (Ligustrum ovalifolium, Oleaceae)** |
| Interfamilial | no way! |
* varies with scion cultivar - 0 to 25% of clonal scions on A. rubrum develop delayed incompatibility
** delayed incompatibility - Nurse Root Graft
