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. 2011 Apr 19;62(11):4037–4042. doi: 10.1093/jxb/err106

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© 2011 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/2.5), 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. 3. — Relationship between developmental stage of O. elatior and titratable acidity in cotyledons at the end of the light (open circles) and at the end of the dark (closed circles). Cotyledon fresh weight per plant was used as an indicator of developmental stage. There was no significant difference between titratable acidity at the end of light and dark for cotyledons with fresh weights of <0.08 g (two-sample t-test, P>0.05). For cotyledons with fresh weights of ≥0.08 g the titratable acidity at the end of the dark period was significantly greater than that at the end of the light period (two-sample t-test, P<0.01). Lines are linear regressions.