Table 1.
Best linear unbiased estimates for grain yield in bread wheat Triticum aestivum L.) cv. Westonia, Westonia-Nax1, Westonia-Nax2, and Baart-46 under different levels of salinity and sodicity in Experiment 2 (n = 4).
| Salinity (mM NaCl) |
Grain yield plant-1(g) | |||
|---|---|---|---|---|
| Westonia | West-Nax1 | West-Nax2 | Baart-46 | |
| 0 | 5.450 | 5.375 | 5.625 | 7.475 |
| 50 | 3.675 | 4.050 | 4.125 | 6.450 |
| 100 | 3.200 | 3.175 | 3.100 | 4.475 |
| 150 | 2.025 | 2.225 | 2.000 | 3.425 |
| 200 | 1.475 | 1.425 | 1.500 | 2.325 |
| LSD* Variety x Treat | 0.554 | |||
| Sodicity (g kg-1 soil Na+ humate) |
Westonia | West-Nax1 | West-Nax2 | Baart-46 |
| 0 | 5.450 | 5.375 | 5.625 | 7.475 |
| 2.0 | 4.800 | 5.250 | 5.225 | 7.425 |
| 4.0 | 4.675 | 4.775 | 4.800 | 7.075 |
| 8.0 | 4.025 | 4.000 | 4.075 | 5.650 |
| 16.0 | 2.275 | 2.325 | 2.375 | 3.475 |
| LSD* Variety x Treat | 0.532 | |||
*LSD refers to least significant difference at P = 0.05 for species x treatment interaction.