Table 1. Mean phenotypic response of parents and 292 ILs (BC4F4) under salt stress.
| Trait Name | Bengal Mean | Pokkali Mean$ | ILs | |||
|---|---|---|---|---|---|---|
| Mean | Std. Dev. | P>F€ | Range | |||
| Na+ (mmolkg-1) | 1232.57 | 940.82ns | 1277.47 | 295.95 | 0.2804 | 859.34–1821.31 |
| K+ (mmolkg-1) | 548.08 | 590.19ns | 575.48 | 159.75 | <0.0001 | 320.93–836.66 |
| NaK (ratio) | 2.29 | 1.59* | 2.31 | 0.57 | <0.0001 | 1.62–3.92 |
| SIS | 7.80 | 3.00*** | 6.60 | 1.21 | <0.0001 | 3.22–9.00 |
| CHL (SPAD unit) | 19.00 | 16.05ns | 22.17 | 6.61 | 0.2136 | 15.85–45.32 |
| SHL (cm) | 31.67 | 47.20** | 33.11 | 5.39 | <0.0001 | 22.40–55.80 |
| RTL (cm) | 8.68 | 9.97* | 8.77 | 1.00 | <0.0001 | 4.05–10.37 |
| DWT (g) | 0.07 | 0.14** | 0.08 | 0.02 | <0.0001 | 0.048–0.133 |
| SRR (ratio) | 3.66 | 4.75** | 3.81 | 0.70 | <0.0001 | 2.91–6.80 |
$ t-test between Bengal and Pokkali Means
nsnot significantly different
*significant at α = 0.05
**significant at α = 0.01
***significant at α = 0.001.
€ Genotypic differences among ILs. Na+: shoot sodium concentration, K+: shoot potassium concentration, NaK: ratio of the shoot sodium and shoot potassium content, SIS: salt injury score, CHL: chlorophyll content, SHL: shoot length, RTL: root length, DWT: shoot dry weight, SRR: shoot length to root length ratio.