| Treatment | In vivo NRA, nmoles NO2 h−1∙g−1 fr. wt. |
| |
| KNO3 conc., mM | ?Al | +Al | % Increase/Decrease |
| 00 | 774 ±20 (100) | 606 ± 31c (100) | 22% Decrease |
| 01 | 957 ± 99 (124) | 894 ± 75 (147) | 7% Decrease |
| 02 | 1134 ± 82 (146) | 1242 ± 112 (205) | 9% Increase |
| 10 | 1610 ± 78 (208) | 1827 ± 148 (301) | 14% Increase |
| 50 | 2434 ± 110 (314) | 1920 ± 74c (317) | 21% Decrease |