http://www.cnn.com/2008/TECH/space/05/30/space.beer.ap/index.html?section=cnn_latest

...So far, scientists have not found any difference between space barley and the Earth-confined version。
好像并不是特意来育种的：
The project is part of biological studies of the adaptability of plants to environmental changes and the impact from stresses such as space travel。

还不与放在超速离心机上猛转几下