Table I.
Example of the evolution of the 15N enrichment (expressed as δ15N) of the various plant compartments measured during the duration of the fourth labeling experiment
| Day 1 (1,092°C DAS) | Day 2 (1,113°C DAS) | Day 3 (1,134°C DAS) | |
|---|---|---|---|
| Seeds of the third stratum (S3) | 49 ± 7 | 194 ± 56 | 289 ± 27 |
| Seeds of the second stratum (S2) | 30 ± 6 | 135 ± 38 | 195 ± 21 |
| Seeds of the first stratum (S1) | 29 ± 6 | 105 ± 33 | 129 ± 24 |
| Pod walls of the third stratum (PW3) | 30 ± 11 | 76 ± 29 | 117 ± 25 |
| Pod walls of the second stratum (PW2) | 12 ± 1 | 46 ± 9 | 69 ± 14 |
| Pod walls of the first stratum (PW1) | 15 ± 4 | 50 ± 12 | 71 ± 19 |
| Leaves of the third reproductive stratum (RL3) | 46 ± 11 | 127 ± 29 | 175 ± 5 |
| Leaves of the second reproductive stratum (RL2) | 33 ± 6 | 89 ± 22 | 106 ± 4 |
| Leaves of the first reproductive stratum (RL1) | 30 ± 5 | 99 ± 34 | 109 ± 5 |
| Leaves of the third vegetative stratum (VL3) | 35 ± 5 | 81 ± 14 | 158 ± 40 |
| Leaves of the second vegetative stratum (VL2) | 49 ± 8 | 120 ± 36 | 267 ± 67 |
| Leaves of the first vegetative stratum (VL1) | 70 ± 22 | 276 ± 33 | 324 ± 150 |
| Stem | 134 ± 18 | 375 ± 46 | 554 ± 92 |
| Roots | 131 ± 21 | 432 ± 91 | 523 ± 30 |