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Impaired growth of plants cultivated in a closed system: possible reasons
J I Gitelson1, L S Tirranen, E V Borodina
1Institute of Biophysics (Russian Academy of Sciences, Siberian Branch), Krasnoyarsk, Russia.
Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)
|January 1, 1997
Abstract:
Plants in experiments on "man-higher plants" closed ecosystem (CES) have been demonstrated to have inhibited growth and reduced productivity due to three basic factors: prolonged usage of a permanent nutrient solution introduction into the nutrient medium of intra-system gray water, and closure of the system. Gray water was detrimental to plants the longer the nutrient solution was used. However, higher plant growth was mostly affected by the gaseous composition of the CES atmosphere, through accumulation of volatile substances.