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Table 3 Summary of berry composition changes following 10 days of sub-ambient CO2 supply, and comparison of total canopy carbon assimilation with berry sugar accumulation during the corresponding period

From: A whole canopy gas exchange system for the targeted manipulation of grapevine source-sink relations using sub-ambient CO2

 Berry composition comparisonSource-sink parameters
 Soluble solids (°brix)Glucose (g /L)Fructose (g/L)Carbon assimilation (g vine−1)Berry sugar gainBerry C / assimilated C
 Dec 26Jan 5Dec 26Jan 5Dec 26Jan 5CO2(g vine−1)%
Ambient5.611.514.651.36.943.765222350
Sub-ambient5.49.816.742.18.335.230216672
Treatmentns**ns**ns*****ns*