What is the collective noun for barley?

There isn't a commonly used collective noun specifically for barley.

While we have "a flock of sheep" or "a pride of lions," barley is usually referred to in terms of its quantity:

* A field of barley

* A crop of barley

* A bushel of barley

You could also use more general terms like:

* A growth of barley

* A stand of barley

Ultimately, the best choice depends on the context and the specific meaning you want to convey.