This is the conference tote bag designed for the Controlled Environment Users Group (CEUG) conference, which takes place in Dublin at UCD in September 2015. Photic Design designed the conference logo for the bag (which is shown).
The CEUG is a scientific group who work on growing plants in controlled environments, like growth chambers, where atmospheric conditions can be varied. This enables the scientists to study the effects of light, temperature, carbon dioxide levels, etc. on plant growth.
The logo represents wheat being grown in a growth chamber where light is provided from an overhead lumière.