4 links have been added on this idea.
  1. “China has developed and approved more than 200 space-mutated crop varieties for agriculture use since the 1990s. In fact, the second most popular wheat variety currently grown in China, Luyuan 502, was developed through space breeding.”

  2. We would need huge space greenhouses floating around. You could even set them off with robots growing food and catch up to them when we colonise the galaxy. Oh and have them plant seeds on other planets.

  3. NASA, bless them (we all get the benefit of NASA’s work and only American taxpayers pay for it) are working on this at the moment.