Influence of Sink Size on 15N and 13C Allocation during Different Phenological Phases of Spring Wheat Cultivars
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Treatment A: Sampling at End of Heading (EC 59), N Uptake between EC 11 and EC 59, 15N Uptake between Stem Elongation (EC 30) and End of Heading (EC 59), C Accumulation between EC 11 and End of Heading (EC 59), and 13C Accumulation between Stem Elongation (EC 30) and End of Heading (EC 59)
3.2. Treatment B: Sampling at Fully-Ripe Stage (EC 89), N Uptake between EC 11 and EC 89, 15N Uptake and 13C Accumulation between End of Heading (EC 59) and Fully-Ripe Stage (EC 89)
3.3. Treatment C: Sampling at Fully-Ripe Stage (EC 89), N Uptake between EC 11 and EC 89, 15N Uptake and 13C Accumulation between Stem Elongation (EC 30) and Fully-Ripe Stage (EC 89)
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Treatment (Day of Year) | EC Stage | N-Fertilization (mg N pot−1) | 15N-Fertilization (mg N pot−1) | N Total (mg N pot−1) |
---|---|---|---|---|
A (116) | 11 | 283 | 0 | 283 |
A (151) | 30 [+ 13CO2] | 127 | 14 | 141 |
A (166) | 59 | Sampling | - | - |
B (116) | 11 | 283 | 0 | 283 |
B (151) | 30 | 141 | 0 | 141 |
B (166) | 59 [+ 13CO2] | 169 | 19 | 188 |
B (204) | 89 | Sampling | - | - |
C (116) | 11 | 283 | 0 | 283 |
C (151) | 30 [+ 13CO2] | 141 | 14 | 141 |
C (166) | 59 | 169 | 19 | 188 |
C (204) | 89 | Sampling | - | - |
Organ Cultivar | Dry Matter (g DM/pot *) | N-Content (mg N/g DM) | 15N-Content (mg15N/g DM) | C-Content (mg C/g DM) | 13C-Content (mg 13C/g DM) |
---|---|---|---|---|---|
Spike | |||||
Triso (E) | 0.390 ± 0.01 a | 18.20 ± 0.26 a | 0.615 ± 0.01 b | 453.7 ± 1.26 a | 0.045 ± 0.02 b |
Naxos (A) | 0.357 ± 0.01 a | 19.20 ± 1.00 a | 0.755 ± 0.01 a | 451.9 ± 0.42 a | 0.142 ± 0.01 a |
Vegetative parts | |||||
Triso (E) | 2.883 ± 0.09 a | 16.33 ± 0.99 b | 0.491 ± 0.02 b | 433.9 ± 1.94 a | 0.212 ± 0.05 a |
Naxos (A) | 2.280 ± 0.10 b | 20.87 ± 0.60 a | 0.588 ± 0.01 a | 435.0 ± 0.35 a | 0.290 ± 0.01 a |
Organ Cultivar | Dry Matter (g DM/pot *) | N-Content (mg N/g DM) | 15N-Content (mg15N/g DM) | C-Content (mg C/g DM) | 13C-Content (mg 13C/g DM) |
---|---|---|---|---|---|
Grain—Control | |||||
Triso (E) | 1.98 ± 0.07 a | 19.14 ± 0.22 a | 0.439 ± 0.03 a | 436.6 ± 0.94 a | 0.223 ± 0.03 a |
Naxos (A) | 2.00 ± 0.12 a | 17.98 ± 0.70 a | 0.436 ± 0.03 a | 432.9 ± 4.48 a | 0.160 ± 0.01 b |
Grain—Spike-halving | |||||
Triso (E) | 1.58 ± 0.23 a | 21.32 ± 0.98 a | 0.503 ± 0.04 a | 436.8 ± 0.93 a | 0.226 ± 0.01 a |
Naxos (A) | 1.49 ± 0.12 a | 19.84 ± 0.22 b | 0.469 ± 0.02 a | 436.4 ± 1.01 a | 0.169 ± 0.01 b |
Vegetative parts—Control | |||||
Triso (E) | 1.78 ± 0.13 a | 3.34 ± 0.60 a | 0.036 ±0.01 a | 441.3 ± 9.05 a | 0.422 ± 0.13 a |
Naxos (A) | 1.60 ± 0.09 a | 4.22 ± 0.63 a | 0.050 ± 0.02 a | 439.2 ± 5.41 a | 0.396 ± 0.10 a |
Vegetative parts—Spike-halving | |||||
Triso (E) | 1.76 ± 0.10 a | 3.38 ± 0.71 a | 0.034 ± 0.01 a | 443.6 ± 4.99 a | 0.404 ± 0.12 a |
Naxos (A) | 1.42 ± 0.07 a | 3.48 ± 0.52 a | 0.048 ± 0.01 a | 446.1 ± 3.46 a | 0.382 ± 0.11 a |
Organ Cultivar | Dry Matter (g DM/pot *) | N-Content (mg N/g DM) | 15N-Content (mg15N/g DM) | C-Content (mg C/g DM) | 13C-Content (mg 13C/g DM) |
---|---|---|---|---|---|
Grain—Control | |||||
Triso (E) | 2.10 ± 0.11 a | 19.76 ± 0.70 a | 0.839 ± 0.08 a | 435.7 ±1.00 a | 0.108 ± 0.01 a |
Naxos (A) | 1.94 ± 0.11 a | 18.50 ± 1.04 a | 0.826 ± 0.12 a | 432.7 ± 5.77 a | 0.112 ± 0.01 a |
Grain—Spike-halving | |||||
Triso (E) | 1.58 ± 0.08 a | 22.30 ± 1.26 b | 0.892 ± 0.06 a | 437.2 ± 0.88 a | 0.114 ± 0.01 a |
Naxos (A) | 1.55 ± 0.11 a | 20.68 ± 0.85 a | 0.884 0.13 a | 437.3 ± 2.82 a | 0.118 ± 0.01 a |
Vegetative parts—Control | |||||
Triso (E) | 1.73 ± 0.11 a | 3.66 ± 0.47 a | 0.111 ± 0.02 a | 439.6 ± 5.91 a | 0.300 ± 0.15 a |
Naxos (A) | 1.60 ± 0.09 a | 4.44 ± 0.39 a | 0.147 ± 0.02 a | 449.0 ± 1.84 a | 0.370 ± 0.09 a |
Vegetative parts—Spike-halving | |||||
Triso (E) | 1.65 ± 0.17 a | 3.32 ± 0.30 a | 0.091 ± 0.01 a | 442.7 ± 5.37 a | 0.278 ± 0.12 a |
Naxos (A) | 1.48 ± 0.13 a | 4.30 ± 0.58 a | 0.128 ± 0.04 a | 448.9 ± 1.08 a | 0.311 ± 0.10 a |
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Götz, K.-P.; Erekul, O. Influence of Sink Size on 15N and 13C Allocation during Different Phenological Phases of Spring Wheat Cultivars. Nitrogen 2023, 4, 28-36. https://doi.org/10.3390/nitrogen4010004
Götz K-P, Erekul O. Influence of Sink Size on 15N and 13C Allocation during Different Phenological Phases of Spring Wheat Cultivars. Nitrogen. 2023; 4(1):28-36. https://doi.org/10.3390/nitrogen4010004
Chicago/Turabian StyleGötz, Klaus-Peter, and Osman Erekul. 2023. "Influence of Sink Size on 15N and 13C Allocation during Different Phenological Phases of Spring Wheat Cultivars" Nitrogen 4, no. 1: 28-36. https://doi.org/10.3390/nitrogen4010004