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Table V
Biomass and P concentration in radioactive shoots, radioactivity (Rshoot) , and specific activity (SAshoot) of the P contained in the shoots, specific activity of the isotopically exchangeable P ions of the mineral soil (SAMS) and proportion of the shoot P originating from the mineral soil (%Pshoot_MS) . Values in parentheses are standard deviation (n = 5).
| Shoot biomass | Pshoot | Rshoot | SAshoot | SAMS | % Pshoot_MS | ||
|---|---|---|---|---|---|---|---|
| (g seedling−1) | (mg g−1) | (Bq seedling−1) | (Bq mg P−1) | (Bq mg P−1) | (%) | ||
| MS | |||||||
| 61 d | 0.27 (0.06) | 0.41 (0.05) | 0.63 (0.33) | 5.66 (2.62) | 1054.66 | 0.54 (0.25) | |
| 95 d | 0.30 (0.05) | 0.29 (0.04) | 0.93 (0.47) | 10.31 (3.67) | 1054.66 | 0.98 (0.35) | |
| 130 d | 0.38 (0.10) | 0.25 (0.04) | 0.81 (0.82) | 8.84 (1.45) | 1054.66 | 0.84 (0.14) | |
| FF + MS | |||||||
| 61 d | 0.28 (0.05) | 0.82 (0.21) | 0.61 (0.17) | 2.70 (0.65) | 1054.66 | 0.26 (0.06) | |
| 95 d | 0.70 (0.17) | 1.43 (0.37) | 4.24 (0.62) | 4.49 (0.95) | 1054.66 | 0.43 (0.09) | |
| 130 d | 2.38 (0.33) | 0.97 (0.18) | 18.83 (11.42) | 8.45 (3.82) | 1054.66 | 0.80 (0.36) |