Table 3 Leaf mineral contents of regenerants of the date palm cv. Khalas subjected to salt stress after regeneration from the same salt-stressed cultures
From: Induced in vitro adaptation for salt tolerance in date palm (Phoenix dactylifera L.) cultivar Khalas
Regenerants/characters | NaCl (mM) | Na+ | K+ | Ca2+ | Mg2+ | K+/Na+ ratio |
|---|---|---|---|---|---|---|
Control | 0 | 70.8 ± 11.90f | 102.3 ± 12.1a | 75.8 ± 7.9b | 30.0 ± 3.6a | 1.482 ± 0.324a |
Salt non-adapted (SNA) | 100 | 198.6 ± 8.90d | 83.9 ± 3.4b | 141.6 ± 5.8a | 7.1 ± 0.3bc | 0.422 ± 0.000bc |
200 | 324.0 ± 16.4b | 64.4 ± 3.3c | 63.9 ± 3.2c | 5.4 ± 0.3c | 0.199 ± 0.000d | |
300 | 536.3 ± 18.1a | 88.6 ± 3.0b | 139.8 ± 4.7a | 7.4 ± 0.2b | 0.165 ± 0.000d | |
Salt adapted (SA) | 100:100 | 173.8 ± 4.90e | 42.3 ± 2.8e | 36.5 ± 2.4d | 8.0 ± 0.5b | 0.573 ± 0.001b |
200:200 | 236.5 ± 14.3c | 54.2 ± 3.3d | 62.2 ± 3.8c | 6.3 ± 0.4bc | 0.229 ± 0.000 cd | |
300:300 | 240.8 ± 9.00c | 33.1 ± 1.2f | 33.4 ± 1.2d | 6.2 ± 0.2bc | 0.137 ± 0.000d |