Simple inexpensive laboratory equipment for cultivation of plants under various CO2 concentrations.

A simple equipment was developed to cultivate young cereal plants under enhanced CO2 concentration. Cultivation system permits growing of about 40 barley seedlings for about 2 to 3 weeks. The system consists of two identical growth chambers (volume about 30 dm3), gas conditioning circuit and measuring circuit with an infra-red CO2 analyser. Capabilities of the whole equipment were tested by growing barley plants under 330 and 1000 cm3 (CO2)m−3 and in combination with high or low nitrate level.