Rootstock vs onset of bud break?

[danchappell]

@Livinginawe

So my question is: Does the selection of the rootstock have any effect on the onset of bud break…for mulberries?

Potentially but I doubt that there is any scientific research since it is not a commercial crop.

It has been demonstrated that flowering can vary at least a week on plums, dependent on rootstock.

Source Plum Report