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. 2009 Feb 26;60(6):1633–1644. doi: 10.1093/jxb/erp028

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© 2009 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details)

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Fig. 4. — (a) Relationship between the ¹⁸O enrichment in shoots and cumulative transpiration, T_cum. Low N treatment, y= –3.78x+137.58; r=0.84, P <0.01, n=12; high N treatment, y= –1.76x+66.74; r=0.80, P <0.01, n=12; (b) Relationship between the ¹⁸O enrichment in shoots and aboveground biomass. Low N treatment y= –15.87x+574.96; r=0.79, P <0.01, n=12; high N treatment, y= –9.05x+341.1; r=0.72, P <0.01, n=12. Open and filled circles represent, respectively, the low and high N treatment means for each genotype and water condition. Each value is the mean of four replicates.