It'd be interesting to measure the gas composition inside the chamber --- although I suspect the bodging together a gas spectrometer is going to be a bit problematic.
This all at at one atmosphere, though, isn't it? I see you have a vacuum pump, but that enclosure doesn't look like it'd be safe to evacuate. I'd like to try low pressures. Intuitively I'd expect hard-skinned plants like cactuses to cope better --- but intuition is frequently wrong. Another interesting thing to try would be to use one atmosphere of absolute pressure but have accurate partial pressures of carbon dioxide and nitrogen to simulate the Martian atmosphere...
It'd be interesting to measure the gas composition inside the chamber --- although I suspect the bodging together a gas spectrometer is going to be a bit problematic.
This all at at one atmosphere, though, isn't it? I see you have a vacuum pump, but that enclosure doesn't look like it'd be safe to evacuate. I'd like to try low pressures. Intuitively I'd expect hard-skinned plants like cactuses to cope better --- but intuition is frequently wrong. Another interesting thing to try would be to use one atmosphere of absolute pressure but have accurate partial pressures of carbon dioxide and nitrogen to simulate the Martian atmosphere...