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Fig. 6 | BMC Plant Biology

Fig. 6

From: Combined application of biochar and nitrogen fertilizer promotes the activity of starch metabolism enzymes and the expression of related genes in rice in a dual cropping system

Fig. 6

Changes in the relative expression patterns of starch metabolism-related genes [GBSSI (A, B) and GBSSII (C, D)] 7, 14, 21, and 28 days after anthesis in response to different levels of biochar and N fertilizers during the early (A, C) and late (B, D) seasons. Vertical bars represent the standard error of the mean. Different letters above columns indicate significant differences (P < 0.05).. Note: N1B0–N, lower dose + Control (no biochar); N2B0–N, higher dose + Control (no biochar); N1B1–N, lower dose + Biochar 10 t ha− 1; N1B2–N,lower dose + Biochar 20 t ha− 1; N1B3–N, lower dose + Biochar 30 t ha− 1; N2B1– N, higher dose + Biochar 10 t ha− 1; N2B2– N, higher dose + Biochar 20 t ha− 1; and N2B3– N, higher dose + Biochar 30 t ha− 1

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