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Nitrate reductase and glutamine synthetase activity of rice at different growth stages under different nitrogen treatments in pots. WT-R: Root of wild type; RC-R: Root of transgenic rice; WT-L: Leaf of wild type; RC-L: Leaf transgenic rice. (a) No nitrogen treatment—LN; (b) normal nitrogen treatment; NN. *, ** represent significance difference (p < 0.05) calculated by LSD’s test.
