Table 3.
Stress tolerance index (STI), stress susceptibility index (SSI), harmonic mean (HM), and seedling vigor index (SVI) of two rice cultivars, BRS Querência and Brilhante, in response to the conditioning of the seeds in the extract of carrot and the low germination temperature.
| Carrot extract (%) | BRS Querência | Brilhante | ||||||
|---|---|---|---|---|---|---|---|---|
| STI | SSI | HM | SVI | STI | SSI | HM | SVI | |
| 0 | 0.06 ± 0.003 b | 0.89 ± 0.01 a | 6.1 ± 0.300 b | 39.6 ± 8.08 c | 0.15 ± 0.01 c | 0.89 ± 0.01 a | 9.8 ± 0.740 c | 71.3 ± 4.97 c |
| 25 | 0.11 ± 0.003 a | 0.80 ± 0.01 b | 10.3 ± 0.25 a | 70.2 ± 3.88 b | 0.28 ± 0.02 b | 0.79 ± 0.01 b | 17.0 ± 0.96 ab | 97.8 ± 3.52 b |
| 50 | 0.11 ± 0.010 a | 0.80 ± 0.02 b | 10.5 ± 0.68 a | 77.3 ± 4.46 a | 0.28 ± 0.01 b | 0.79 ± 0.01 b | 16.8 ± 0.58 b | 101.6 ± 3.57 ab |
| 100 | 0.11 ± 0.010 a | 0.80 ± 0.02 b | 10.6 ± 0.85 a | 73.9 ± 4.09 ab | 0.30 ± 0.02 a | 0.77 ± 0.01 b | 18.2 ± 0.94 a | 105.3 ± 3.84 a |
Means followed by the same letter in the column do not differ from each other by the Tukey’s test (P ≤ 0.05).
± SD standard deviation.