Table 1.
Phenotypic response of parents and F6 RIL population for traits related to salt tolerance at seedling stage
| Trait Name | Bengal Mean | Pokkali Meanβ | RIL Mean | Std. Dev. | RIL Range | RIL Pr > F§ | Heritability¥ |
|---|---|---|---|---|---|---|---|
| Na+ (mmolkg-1) | 1700.00 | 1424.3ns | 1430.7 | 246.24 | 861.97–2733.35 | <0.0001 | 0.98 |
| K+ (mmolkg-1) | 420.00 | 591ns | 547.3 | 107.59 | 335.99–884.18 | <0.0001 | 0.95 |
| NaK (ratio) | 4.07 | 2.38** | 2.8 | 0.56 | 1.25–5.32 | <0.0001 | 0.24 |
| SIS | 8.40 | 3.00*** | 4.7 | 0.72 | 3.00–8.73 | <0.0001 | 0.44 |
| CHL (SPAD unit) | 20.56 | 19.54ns | 24.2 | 4.25 | 13.72–43.67 | <0.0001 | 0.45 |
| SHL (cm) | 32.07 | 44.52*** | 40.7 | 3.21 | 22.60–59.73 | <0.0001 | 0.90 |
| RTL (cm) | 6.73 | 10.08** | 7.4 | 0.64 | 4.67–11.27 | <0.0001 | 0.61 |
| DWT (g) | 0.06 | 0.11* | 0.1 | 0.01 | 0.04–0.16 | <0.0001 | 0.01 |
| SRR (ratio) | 4.98 | 4.53ns | 5.6 | 0.53 | 3.08–9.79 | <0.0001 | 0.63 |
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
βSignificant differences between Bengal and Pokkali, nsno significant differences, *significant at 0.05 probability level, **significant at 0.01 probability level, ***significant at 0.001 probability level
§Genotypic differences among RIL
¥Broad sense heritability computed on family mean basis