Table I.
Leaf stress symptoms due to increasing NaCl in the medium
| NaCl | Glycinebetaine | TBARS | Water Deficit | Chlorophyll |
|---|---|---|---|---|
| mm | μmol g−1 | A450 g−1 | % | mg g−1 |
| 0 | .47 ± .07 | 6.17 ± .58 | 0.97 ± .44 | 1.51 ± .06 |
| 50 | .77 ± .09 | 4.67 ± .58 | 2.50 ± .35 | 1.24 ± .20 |
| 75 | 1.55 ± .05 | 6.14 ± .69 | 2.21 ± .70 | 1.30 ± .09 |
| 100 | 1.90 ± .25 | 6.61 ± .21 | 2.39 ± 1.26 | 1.34 ± .02 |
| 125 | 2.29 ± .16 | 5.96 ± .38 | 6.46 ± 1.18 | 1.24 ± .07 |
| 150 | 2.82 ± .27 | 6.54 ± .42 | 6.30 ± .06 | 1.15 ± .10 |
| 175 | 4.05 ± .16 | 8.59 ± .82 | 5.56 ± .64 | 0.96 ± .08 |
| 200 | 3.77 ± .78 | 12.74 ± 2.76 | 12.4 ± 5.85 | 0.67 ± .18 |
| 250 | 2.66 ± .10 | 18.03 ± 1.37 | 12.0 ± 3.92 | 0.70 ± .16 |
Normal nutrient medium used for growth. Eight-day-old plants had NaCl added to the growth medium on d 0, and the experimental medium was changed on d 2. Leaves were harvested on d 4 and stored frozen until analyzed. The numbers are the mean of three leaf samples ± se.