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Root dry weight (DW), shoot DW, and root /shoot DW ratio of DH32-29 (A, C, E, G) and G9 (B, D, F, H) seedlings subjected to different aluminum (Al) and phosphorus (P) treatments. Bars represent means ± standard deviations (n = 3). Differences among the six treatments were analyzed using 2 (Al) × 3 (P) analysis of variance. Different letters above the bars indicate a significant difference at P < 0.05.
