[nobody31415926]

Seed companies do exactly this.

You buy their seed to grow wheat, you have a license to grow the wheat but you can't keep any of it to plant next year.

You have a license to use their wheat seeds but not use the copies the plant is making.

[swasheck]

Yay Monsanto. Not only this, once you licence their seed, you are no longer able to use non-Monsanto seed.

[superkarn]

Some info

- http://www.library.yale.edu/~llicense/ListArchives/0311/msg0... - http://www.nytimes.com/2009/12/18/business/18seed.html

[jeza]

This would be genetically engineered wheat?

[nobody31415926]

No any wheat - otherwise any seed company would only ever make a single sale