I grafted quite a few apples and some pears this year. It was my first attempt and I had mixed success. I realized recently that most of my failed have failed rootstock also. Is that how it goes, or did I do something wrong? some drown? (in pots with mix of peat moss, compost and a little vermiculite) my statistics don't seem to change on what apple type, graft type, or day I did them (over 2 weeks). The failures would open up, but not get far before they petered out.
The goods root stocks put shoots off below the graft, the bad ones either put off nothing below, or a bud opened but soon died. The pears 9 of 12 were bad. the apple were about 1/3. But the good apples are off to the races. The 3 pears are going really slow.
Apple rootstocks were MM111's for raintree. I don't remember the pear stock.
I guess the info I want is a realistic expectation of rootstock survival rates, and any info on anything I may have done wrong.