Fig. S1 Leaf respiration rate of Triticale cv Double Take with time in the dark after exposure to 5 h of (a) 900 μmol m−2 s−1 PAR and (b) 300 μmol m−2 s−1 PAR.

Fig. S2 No relationship is observed between wind direction and δ13C of ecosystem respiration (δ13CReco) between sunset and midnight during the 28-d experimental period.

Notes S1 Extended description of experimental site and environmental measurements, as well as a detailed description of estimation of component fluxes and discussion of diel variation in δ13CRs.

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