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. 2012 Sep 11;110(6):1149–1159. doi: 10.1093/aob/mcs198

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© The Author 2012. Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1. — Storage containers used in the experiments. (A) Steel tank with an internal volume of 1·5 L which can be filled with gas to 20 MPa pressure. (B) Glass jar containing air at ambient pressure (0·1 MPa), showing the perforated tubes with seed samples, silica gel for RH buffering and a data logger for recording RH and temperature.