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Table 4 Effect of salicylic acid treatments on functional attributes of leaves of B. carinata cultivars grown under salt stress

From: Salicylic acid alleviates salinity-caused damage to foliar functions, plant growth and antioxidant system in Ethiopian mustard (Brassica carinata A. Br.)

Cultivars Treatments Relative water
content (%)
Chlorophyll
fluorescence (Fv/Fm)
Stomatal conductance
(mol m−2s−1)
Net photosynthetic rate
(µ mol CO2 m−2 s−1)
Transpiration rate
(m mol m−2s−1)
Water use efficiency
Adet Control 72.69 ± 1.58a 0.821 ± 0.007a 0.196 ± 0.006a 15.77 ± 0.59b 5.20 ± 0.18a 3.03 ± 0.29a
0 mM NaCl, with 0.5 mM SA 73.86 ± 3.17a
(1.61)
0.834 ± 0.004a
(1.58)
0.198 ± 0.004a
(1.02)
19.21 ± 0.56a
(21.81)
5.38 ± 0.19a
(3.46)
3.57 ± 0.25a
(17.82)
50 mM NaCl without SA 71.40 ± 2.18a
(1.77)
0.781 ± 0.013b
(4.87)
0.182 ± 0.002b
(7.14)
14.72 ± 0.56bc
(6.66)
4.97 ± 0.14a
(4.42)
2.96 ± 0.27b
(2.31)
50 mM NaCl with 0.5 mM SA 72.06 ± 2.77a
(0.86)
0.815 ± 0.011a
(0.73)
0.194 ± 0.004a
(1.02)
17.13 ± 0.59a
(8.62)
5.03 ± 0.13a
(3.27)
3.41 ± 0.24a
(12.54)
100 mM NaCl without SA 68.72 ± 2.62a
(5.46)
0.738 ± 0.007c
(10.11)
0.161 ± 0.004c
(17.86)
11.87 ± 0.73d
(24.73)
4.46 ± 0.17b
(14.23)
2.66 ± 0.19b
(12.21)
100 mM NaCl with 0.5 mM SA 72.84 ± 2.12a
(0.21)
0.764 ± 0.016b
(6.94)
0.167 ± 0.005c
(14.80)
15.07 ± 0.61c
(4.44)
4.56 ± 0.17ab
(12.31)
3.30 ± 0.17a
(8.91)
150 mM NaCl without SA 52.83 ± 2.17c
(27.32)
0.628 ± 0.009d
(23.51)
0.143 ± 0.003e
(27.04)
9.74 ± 0.74e
(38.24)
3.64 ± 0.14e
(30.00)
2.68 ± 0.19b
(11.55)
150 mM NaCl with 0.5 mM SA 65.49 ± 1.98ab
(9.91)
0.741 ± 0.007b
(9.74)
0.163 ± 0.007cd
(16.84)
11.74 ± 0.82d
(25.55)
4.09 ± 0.14c
(21.35)
2.87 ± 0.14b
(5.28)
Merawi Control 70.28 ± 1.74a 0.813 ± 0.008a 0.185 ± 0.005a 15.39 ± 0.52b 4.81 ± 0.20a 3.20 ± 0.24a
0 mM NaCl, with 0.5 mM SA 71.94 ± 2.64a
(2.36)
0.827 ± 0.006a
(1.72)
0.187 ± 0.006a
(1.08)
18.25 ± 0.63a
(18.58)
4.97 ± 0.23a
(3.33)
3.67 ± 0.23a
(14.69)
50 mM NaCl without SA 69.03 ± 2.17a
(1.78)
0.771 ± 0.011b
(5.17)
0.167 ± 0.004c
(9.73)
14.08 ± 0.57c
(8.51)
4.61 ± 0.12ab
(4.16)
3.05 ± 0.22b
(4.69)
50 mM NaCl with 0.5vmM SA 71.34 ± 2.04a
(1.51)
0.802 ± 0.013a
(1.35)
0.184 ± 0.005a
(0.54)
15.68 ± 0.57b
(1.88)
4.72 ± 0.19ab
(1.87)
3.32 ± 0.21ab
(3.75)
100 mM NaCl without SA 66.13 ± 1.83ab
(5.90)
0.726 ± 0.011c
(10.70)
0.152 ± 0.003d
(17.84)
11.23 ± 0.62d
(27.03)
4.02 ± 0.18c
(16.42)
2.79 ± 0.21b
(12.81)
100 mM NaCl with 0.5 mM SA 70.28 ± 1.74a
(0.00)
0.758 ± 0.013b
(6.77)
0.161 ± 0.004c
(12.97)
14.71 ± 0.57c
(4.42)
4.16 ± 0.19c
(13.51)
3.54 ± 0.19a
(10.63)
150 mM NaCl without SA 51.52 ± 2.08c
(26.69)
0.614 ± 0.007d
(24.48)
0.139 ± 0.002e
(24.86)
8.85 ± 0.63e
(42.50)
3.51 ± 0.12e
(27.03)
2.52 ± 0.17c
(21.25)
150 mM NaCl with 0.5 mM SA 63.48 ± 1.53b
(9.68)
0.738 ± 0.008b
(9.23)
0.151 ± 0.006d
(18.38)
11.03 ± 0.80d
(28.33)
3.79 ± 0.13de
(21.21)
2.91 ± 0.13b
(9.06)
  1. Each value represents the mean ± SE of five replicates. Numbers followed by different letters indicate significant differences (P < 0.05) according to the Duncan test.
  2. Values within parenthesis are percent variation as obtained from the control plants of respective cultivars