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. 2014 Apr 23;65(12):3225–3233. doi: 10.1093/jxb/eru166

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© The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology.

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

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Fig. 6. — Leaf gas film thickness of four genotypes of 5–7 weeks old rice (Oryza sativa) with time of submergence. (a) FR13A (submergence tolerant and donor of SUB1) and IR42 (submergence intolerant) and (b) Swarna (submergence intolerant) and Swarna-Sub1 (submergence tolerant with SUB1 QTL introgressed). Gas film volume was measured by determining tissue buoyancy before and after gas film removal using the method of Raskin (1983) and then divided by two-sided leaf area to obtain mean thickness (mean±SE, n = 4). Gas film thickness decreased significantly with time of submergence (Table 1); asterisk denotes significant differences between the two genotypes in each panel (Bonferroni test).