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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. 4. — Underwater net photosynthesis (P_N) 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). Lamina segments of 蝤 200mm² were incubated in rotating glass vials with 0.2mol CO₂ m^–3 and PAR of 760 µmol photons m^–2 s^–1 at 30 °C and P_N was measured as O₂ evolution (mean±SE, n=4). Underwater P_N decreased significantly with time of submergence for all four genotypes (Table 1); asterisk denotes significant differences between the two genotypes in each panel (Bonferroni test).