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In a changing environment, Rationale Cassava production faces challenges. With 13 C-CO 2 Cassava permeable, it could be possible to clarify carbon allocation mechanisms of cassava under drought stress and potassium application. Methods Forty-eight cassava plants were given a nutrient solution that was either high or low in potassium. After being labeled for 8 h with 13 C-CO 2 in a 15-m 3 growth chamber, water deficit was introduced on half of the plants at bulk root initiation stage. U03b4 13 C values of the various components of the sample were determined using an isotope ratio mass spectrometer, out of which 13 C excess was estimated. Water deficit decreased transpiration and increased carbon dioxide production – two of the key factors. Conclusions Pulse labelling was highly effective in shedding light on carbon allocation in relation to water and potassium availability.
Source link: https://europepmc.org/article/MED/36329665
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