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Abstract |
Dynamics of translocation of photosynthetic carbon to roots of cucumber plants (Cucumis sativus L.) was analyzed in controlled environments in hydroponics: ^<13>CO_2 was supplied to leaves under light...ing, and the ^<13>CO_2 concentration in nutrient solution was measured in an intact plant by using a gas chromatograph-mass spectrometer. In dynamic responses of ^<13>CO_2 release in roots to ^<13>CO_2, supply to leaves, the delay of the time in translocation of newly fixed carbon in leaves to respiratory carbon release in roots was found to be about 2h in the cucumber plant at the 3 leaf stage.show more
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