Inducing a branch
I suspect that this will be an easy case where you just point me to a nice link...
I dormant-topped all 5 apple whips that I planted last year to 42' in preparation for my open vase trees. With such a warm spring, I'm already seeing some leaf buds push which I suspect will become new shoots/laterals for my vase. But, my question is... if I don't get enough new shoots to form a vase (I'm hoping for 4 on each tree), how do I go about inducing one? I seem to remember a procedure where you score the bark down to the cambium just below a leaf bud, or something like that? If so, what would be the right time of year for me to do this? (Something showing me how long/deep the cut would be would be nice too.)
I guess I also want to ask how close together should I aim to get these new laterals? Ideally, they'd all be at the same level, but that's probably not possible/practical/and perhaps not best for the tree? Maybe it's just aesthetics anyway?
Thanks in advance,
P.S. Attended my first grafting class last night. Grafted a Goldrush on P2 (like M9) rootstock. Time will tell if my clumsy hands were good enough!