Pear Rootstock
While they aren't always appropriate, rootstocks that induce precocity for European pears are generally recommended, since they can take a very long time to start producing on standard rootstock.
Apple Rootstock
Rootstock from the Geneva series share a number of positive traits that often make them look superior to the alternatives, but it is becoming apparent that they have a few unexpected problems.
Graft Compatibility Between Different Species
You are going to run into the least amount of problems when you graft scionwood onto a member of the same species, but it is not uncommon for those that are closely related, i.e. members of the same genus, to have some level of compatibility ...
Grafting Series
An introduction to grafting using one of the most informative video series available as well as my own personal experiences.
Birdhouse Experiment: The Insectivorous Western Bluebird in two Californian Vineyards
... They also noticed that the western bluebird fed on mosquitoes, a previously unknown prey that was found at a higher frequency than anything else, and that less than three percent of their diet consisted of predatory insects ...
Asian and American Persimmons in North America
Persimmons are one of the easiest fruit trees you can grow in North America. Not only are they relatively pest and disease free, they awaken from dormancy late in the season, which allows them to frequently avoid frost damage in the unstable climate that is commonly experienced on this continent ...