This is the tree in healthier times.

I'd say not likely but there is a chance. In addition to just a sliver of cambium & phloem left, it looks like most of the xylem is gone too.

what i dont understand from the pix .. is where the graft is ...

if the damage is above the graft ... then it should be able to rebud ...

if the graft is above... it may survive.. but i wouldnt bet my shiny penny on it ...

my base concern ... is the lack of heat wood.. that structurally holds up the tree during its lifetime ... and im wondering what going to happen.. as the wind sail know as teh canopy expands over the years ... i wonder if it will be a situation.. where you keep it staked for years.. and then feel secure that all is well .. and bammo ... it breaks ...

if it does rebud below the graft ... i might be tempted to just remove all above ... as the relatively large root mass for the now smaller tree.. might cause expansive growth.. once it settles in from the transplant stresses ...

you need to protect it better ... perhaps hardware cloth or some such ...

ken

https://duckduckgo.com/?t=ffcm&q=hardware+cloth&ia=images&iax=images

Meanwhile the string probably isn't going to be effective - get some wire mesh and enclose the tree all the way around, use firm stakes to keep it secure.

Thanks! I’m going to get something hardier to protect it tomorrow.