Table I.
The effect of different growth temperatures on free IAA levels in L. gibba
| Temperature | Mean | Data Subset |
|---|---|---|
| °C | ng g−1 fresh weight | |
| 5 | 7.8 ± 1.6 (n = 4) | |
| 10 | 11 ± 1 (n = 4) | |
| 15 | 20 ± 8.9 (n = 10) | 58 ± 12 (n = 3)3.5 ± 0.4 (n = 7) |
| 20 | 267 ± 166 (n = 9) | 1,100 ± 1 (n = 2)36 ± 21 (n = 3) |
| 2.8 ± 0.1 (n = 4) | ||
| 25 | 3.4 ± 0.7 (n = 4) | |
| 30 | 2.2 ± 0.1 (n = 4) | |
| 35 | 4.1 ± 0.7 (n = 4) | |
Free IAA levels were measured by gas chromatography/mass spectrometry (GC-MS) analysis using [13C6]IAA as the internal standard. se is given and “n” is the number of samples analyzed. Values obtained at 15°C and 20°C showed a high se resulting from the fact that the levels grouped into two or three highly different subsets of median values, as shown in the third column.