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Fig. 2 | Annals of Forest Science

Fig. 2

From: Do leaf lignin content or leaf mass-to-area bias the estimation of intrinsic water use efficiency from leaf bulk δ13C? A test with seedlings from five oak species

Fig. 2

Correlation between the carbon isotope composition of bulk leaf (δ13Clb) and soluble sugars (δ13Css) in the leaves of the five oak species: Q. robur, Q. pubescens, Q. ilex, Q. suber, and Q. afares grown under common conditions in a greenhouse. The equations of the regression across the whole data set are provided. The regression is significant at P < 0.001. Species mean values ± 95% confidence intervals are superimposed to the individual data

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Annals of Forest Science

ISSN: 1297-966X