Table 5.
Effects of nanochitin on enzymes activities for C and N metabolism at the anthesis and the 15 days after anthesis stages of winter wheat.
| Organ | CNanochitin* (mg·kg−1) | Anthesis Stage | 15-Days After Anthesis | ||||
|---|---|---|---|---|---|---|---|
| SPS | PEPC | SPS/PEPC | SPS | PEPC | SPS/PEPC | ||
| (mg/g·h) | (nmol/g·min) | (mg/g·h) | (nmol/g·min) | ||||
| Flag Leaf | 0 | 7.27 ± 0.58b** | 10.16 ± 1.09b | 0.72 ± 0.04a | 4.61 ± 0.92b | 5.99 ± 0.83b | 0.77 ± 0.05a |
| 6 | 10.16 ± 0.89a | 15.96 ± 0.74a | 0.64 ± 0.03b | 5.91 ± 0.43a | 8.69 ± 1.12a | 0.68 ± 0.05b | |
| Spike | 0 | 5.81 ± 1.05b | 12.23 ± 1.29b | 0.48 ± 0.02a | 2.96 ± 0.19b | 4.14 ± 0.81b | 0.71 ± 0.04a |
| 6 | 7.90 ± 1.09a | 19.42 ± 1.93a | 0.41 ± 0.01b | 4.21 ± 0.35a | 6.48 ± 0.61a | 0.65 ± 0.06b | |
* CNanochitin, Nanochitin application rate (mg·kg−1), SPS: Sucrose phosphate synthase, and PEPC: phosphoenolpyruvate carboxylase (PEPC), SPS/PEPC: the ratio of SPS to PEPC. **Different letters of a, b, c, and d in the same column of data show significant differences among different treatments (p ≤ 0.05).