Table 1.
Shoot fresh weight (FW), dry matter (DM) and sodium concentration ([Na]shoot) of 12 halophytic angiosperm species grown in pots irrigated with either 100 ml nonsaline (0.14 mM Na) or saline (50–300 mM Na) solution wk−1
| Treatment | Species | Family | Order | FW (g) | Dry matter (DM) (g) | [Na]shoot (mg g−1 DM) |
|---|---|---|---|---|---|---|
| Nonsaline | Hordeum jubatum L. | Poaceae | Poales | 4.66 ± 2.24 (n = 3) | 0.43 ± 0.33 (n = 3) | 0.21 ± 0.02 (n = 3) |
| Nonsaline | Asparagus officinalis L. | Asparagaceae | Asparagales | 6.36 ± 0.75 (n = 10) | 0.74 ± 0.18 (n = 10) | 0.38 ± 0.05 (n = 10) |
| Nonsaline | Hibiscus tilliaceus L. | Malvaceae | Malvales | 2.87 (n = 1) | 0.19 (n = 1) | 0.69 (n = 1) |
| Nonsaline | Colubrina asiatica (L.) Brogn. | Rhamnaceae | Rosales | 1.47 ± 0.17 (n = 2) | 0.056 ± 0.003 (n = 2) | 0.73 ± 0.15 (n = 2) |
| Nonsaline | Casuarina cunninghamiana Miq. | Casuarinaceae | Fagales | 0.90 ± 0.20 (n = 2) | 0.045 ± 0.010 (n = 2) | 1.03 ± 0.24 (n = 2) |
| Nonsaline | Kosteletzkya virginica (L.) C. Presl ex A. Gray | Malvaceae | Malvales | 22.69 ± 3.75 (n = 9) | 2.09 ± 0.63 (n = 9) | 1.62 ± 0.13 (n = 9) |
| Nonsaline | Ammi visnaga (L.) Lam. | Apiaceae | Apiales | 22.56 ± 1.52 (n = 8) | 2.13 ± 0.18 (n = 8) | 2.16 ± 0.11 (n = 8) |
| Nonsaline | Lobularia maritima (L.) Desv. | Brassicaceae | Brassicales | 20.45 ± 8.68 (n = 4) | 1.10 ± 0.58 (n = 4) | 3.40 ± 0.27 (n = 4) |
| Nonsaline | Scaevola crassifolia Labill. | Goodeniaceae | Asterales | 49.53 ± 3.92 (n = 4) | 4.09 ± 0.27 (n = 4) | 3.78 ± 0.46 (n = 4) |
| Nonsaline | Plantago maritima L. | Plantaginaceae | Lamiales | 3.32 ± 0.52 (n = 12) | 0.053 ± 0.001 (n = 12) | 4.11 ± 0.33 (n = 12) |
| Nonsaline | Beta vulgaris L. | Amaranthaceae | Caryophyllales | 38.95 ± 7.28 (n = 6) | 2.46 ± 0.63 (n = 6) | 10.72 ± 1.03 (n = 6) |
| Nonsaline | Atriplex hortensis L. | Amaranthaceae | Caryophyllales | 28.18 ± 1.52 (n = 7) | 4.18 ± 0.47 (n = 7) | 12.02 ± 0.49 (n = 7) |
| Saline | Hordeum jubatum L. | Poaceae | Poales | 2.52 ± 0.86 (n = 2) | 0.13 ± 0.07 (n = 2) | 2.18 ± 0.27 (n = 2) |
| Saline | Asparagus officinalis L. | Asparagaceae | Asparagales | 4.11 ± 0.66 (n = 9) | 0.36 ± 0.15 (n = 9) | 2.66 ± 0.97 (n = 9) |
| Saline | Hibiscus tilliaceus L. | Malvaceae | Malvales | 3.36 (n = 1) | 0.17 (n = 1) | 4.10 (n = 1) |
| Saline | Colubrina asiatica (L.) Brogn. | Rhamnaceae | Rosales | 1.19 ± 0.36 (n = 2) | 0.054 ± 0.003 (n = 2) | 16.73 ± 10.32 (n = 2) |
| Saline | Casuarina cunninghamiana Miq. | Casuarinaceae | Fagales | 0.53 (n = 1) | 0.060 (n = 1) | 3.62 (n = 1) |
| Saline | Kosteletzkya virginica (L.) C. Presl ex A. Gray | Malvaceae | Malvales | 15.02 ± 1.58 (n = 9) | 1.66 ± 0.26 (n = 9) | 13.60 ± 0.94 (n = 9) |
| Saline | Ammi visnaga (L.) Lam. | Apiaceae | Apiales | 20.38 ± 1.65 (n = 8) | 1.96 ± 0.22 (n = 8) | 17.83 ± 1.14 (n = 8) |
| Saline | Lobularia maritima (L.) Desv. | Brassicaceae | Brassicales | 9.54 ± 1.75 (n = 4) | 0.49 ± 0.18 (n = 4) | 27.94 ± 2.30 (n = 4) |
| Saline | Scaevola crassifolia Labill. | Goodeniaceae | Asterales | 41.70 ± 9.77 (n = 4) | 3.41 ± 0.97 (n = 4) | 19.41 ± 1.97 (n = 4) |
| Saline | Plantago maritima L. | Plantaginaceae | Lamiales | 2.47 ± 0.37 (n = 12) | 0.052 ± 0.002 (n = 12) | 27.49 ± 1.01 (n = 12) |
| Saline | Beta vulgaris L. | Amaranthaceae | Caryophyllales | 35.72 ± 8.90 (n = 6) | 2.27 ± 0.60 (n = 6) | 29.56 ± 3.06 (n = 6) |
| Saline | Atriplex hortensis L. | Amaranthaceae | Caryophyllales | 32.99 ± 0.57 (n = 6) | 5.04 ± 0.24 (n = 6) | 32.44 ± 2.14 (n = 6) |
The experiment was initiated by increasing the NaCl concentration in the irrigation water of the saline treatment to 50 mM for the first week, then 150 mM for the second week and, finally, 300 mM for the third week. Plants were harvested 3 wk after the first addition of NaCl to the saline irrigation water. Data are expressed as mean ± SE of n observations.