[Study of the possibility of utilizing the transpired mositure condensate from sweet potato for growing plants in biological life support systems].

The effect of nonpurified condensate obtained during prolonged cultivation of batata in a sealed chamber upon batata cuttings and seedlings of garden cress, radish and Chinese cabbage was studied. It was shown that nonpurified condensate produced an inhibitory effect on the formation of roots in batata cuttings and on the growth of previously developed roots of batata cuttings and seedlings. The studies which used a chemical model of 3,4-dihydroxy phenylalanine indicated that the condensate contained biologically active substance of organic origin. However, only experiments with the real continuous culture of batata, using real dilutions of the condensate that depend on the size of the greenhouse and the amount of the nutrient solution would clarify wheather condensate of transpiration water of batata plants can be repeatedly utilized in life support systems.