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Po after 4 d of exposure to 2.5 mm Alac, nitrate, or malate (experiment 6)
| Treatment | Po | Ratio with Control |
|---|---|---|
| μm s−1 | ||
| Control | 5.17 ± 0.39 | 1.00 |
| Alac | 3.53 ± 0.24 | 0.68 |
| Nitrate | 3.65 ± 0.49 | 0.70 |
| Malate | 5.71 ± 0.40 | 1.10 |
Data are means ± se of 8 to 12 nodules.
