Table 2.
Effects of NaCl on germination and its recovery in deionized water of seeds of Halocnemum strobilaceum
| Seed germination ( % ± s.e.) |
|||||
|---|---|---|---|---|---|
| Salinity (m) | Initial solution, B/C × 100 | Recovery* [(A – B)/(C – B)] × 100 | Final†, A/C × 100 | TG50 (d) | TGr50 (d) |
| 0 | 89·0 ± 1·3a | 17·5 ± 6·8a | 91·5 ± 1·7a | 3 | >15 |
| 0·1 | 73·5 ± 4·9b | 43·8 ± 4·8b | 84·5 ± 3·8b | 4 | >15 |
| 0·2 | 54·5 ± 3·0c | 58·8 ± 8·6c | 79·5 ± 2·6cde | 12 | >15 |
| 0·3 | 40·0 ± 4·4d | 62·8 ± 7·0c | 76·0 ± 5·9def | >15 | 4 |
| 0·4 | 15·5 ± 2·8e | 68·3 ± 4·1c | 73·5 ± 2·6f | >15 | 4 |
| 0·5 | 7·0 ± 1·7e | 73·5 ± 2·6cd | 75·5 ± 1·0f | >15 | 4 |
| 0·75 | 0 | 74·5 ± 1·0d | 74·5 ± 1·0f | >15 | 3 |
| 1·0 | 0 | 77·0 ± 1·7d | 77·0 ± 1·7ef | >15 | 3 |
| 2·0 | 0 | 88·0 ± 2·8e | 88·0 ± 2·8ab | >15 | 3 |
| 4·0 | 0 | 85·5 ± 2·4e | 85·5 ± 2·4 b | >15 | 2 |
| 6·0 | 0 | 84·5 ± 2·8e | 84·5 ± 2·8bcd | >15 | 2 |
* Recovery is the percentage of ungerminated seeds in the NaCl pre-treatment solution that germinated after transfer to deionized water [(A – B)/(C – B)] × 100, where A is the sum of the number of seeds germinated in the salt solutions plus the number that recovered to germinate in deionized water, B is the number of seeds germinated in the initial salt solutions and C is the total number of seeds tested.
† Final germination was recorded as (A/C) × 100, where A is the sum of the number of seeds germinated in salt solutions and of those that recovered to germinate in the deionized water, and C is the total number of seeds tested.
Values followed by the same letter do not differ significantly.