Table 3.
Effect of spermidine application on endogenous polyamines content of the young panicles at different temperatures before heading.
| Temperature | Spd | Put (nmol g-1FW) | Spd (nmol g−1FW) | Spm (nmol g−1FW) | |||
|---|---|---|---|---|---|---|---|
| 5 d | 10 d | 5 d | 10 d | 5 d | 10 d | ||
| NT | −Spd | 123.3 ± 1.6 a | 32.3 ± 0.1 a | 564.3 ± 3.9 a | 153.2 ± 0.4 d | 84.5 ± 3.2 d | 54.9 ± 0.2 d |
| +Spd | 63.9 ± 0.1 c | 19.0 ± 0.1 b | 463.3 ± 2.2 b | 172.9 ± 0.3 c | 130.0 ± 0.7 c | 79.9 ± 1.5 c | |
| HT | −Spd | 84.8 ± 1.2 b | 12.9 ± 4.8 b | 378.5 ± 1.0 c | 209.1 ± 21.0 b | 172.8 ± 6.7 b | 97.4 ± 8.5 b |
| +Spd | 21.9 ± 0.5 d | 8.0 ± 0.1 c | 525.2 ± 4.6 a | 251.8 ± 0.5 a | 860.8 ± 13.0 a | 153.4 ± 1.8 a | |
Means±SDs were calculated from the data of three repeats. Values followed by different letters within the same column are significantly different at P < 0.05 between the different treatments, including temperature and Spd. 5 d and 10 d in the table were 5 days and 10 days after HT treatment, respectively.