I guess they would be called "best practices in the industry not taught in university"? I don't think there is any definite term for these. Even if there would be it would only lead to confusion where one university actually teaches one subset of practices.
Then again, I don't think you should worry that much about it... only ask the junior candidates what agile practices they know of. I guess that's a way to filter candidates; if they are clueless then it is sufficient to expect that they're not paying attention to the industry.
As a side-note I went to a university that has a course in extreme programming. It's goal however is not to teach XP per se, but to give the students a preparatory course in software engineering and the faculty uses XP to convey the whole process. That way they have something practical for the later courses in requirements engineering, testing and verification, algorithms and datastructures, OO-practices etc.
The students are first given some lectures where they are taught the basics about agile processes, version control and unit testing. In the following semester they're scheduled each week a full day lab where they work on a project, and also have a 2 hour planning meeting together with a "customer". They also have access to senior students who are acting as coaches (they're going a leadership/coaching course so this is their practical project). It is the same project every year, and in the final release the students use the application for themselves in a competition where the teams compete both in a simple sport and which application produced the results the fastest. The course is used for research as well (here is one publication about it).