Can plants grow in quasi-vacuum?It was found that the growth of plants is possible under absolute pressure 14 times lower than the atmospheric pressure. In first approximation, plants ignore the absence of nitrogen and only react to the partial pressure of O2. Hence the growth of plantlets was delayed under low pressures of O2 in both cases with and without nitrogen. The CO2 availability being limited by the carbon content of the seed, the final results after 20 days were very similar.
Andre, M. (Commissariat a l'Energie Atomique Cadarache, France)
Richaud, C. (Commissariat a l'Energie Atomique Cadarache, France)
August 12, 2013
January 1, 1986
Publication: NASA. Ames Research Center Controlled Ecological Life Support Systems