Seeds might seem far from the world of high tech and free software, but they have much in common. Seeds contain DNA, which is a (quaternary) digital code much like a binary program. Just as there is free software that anyone may use and share, there are free seeds - those that are part of the ancient seeds commons, created over thousands of years, available for use by anyone. And just as free software is threatened by software patents, so seeds are equally endangered by seed patents.
On Open Enterprise blog.