Is it possible to graft plants from different families?
For example, I have some Eastern Hemlock rootstock (Pinaceae), and want to graft a scion from Dawn Redwood (Cupressaceae) onto it. Is this possible? Is anything like this possible?
I don't think this would work. Plants have a remarkable penchant for polyploidy - the acquisition of multiple sets of chromosomes - which could be one out of many reasons that they would be genetically incompatible.
