Time-lapse video of maize root growth

A time lapse of maize root growth over 14 days. The maize seed was placed onto a thick layer of paper, itself contained in a transparent plastic pouch. The bottom of the pouch was cut to allow water to evacuate. The pouch was placed in a flatbed scanner held vertically. Pictures were taken every 30 min over 14 days. The plant was watered with water from the top daily.