Table 6 Mean comparisons for chlorophyll content, RWC for leave and shoot and EC of R. damascena leaves under different salinity levels and treated with salicylic acid at four rates of application

Control

control

75.27 ± 3.66ab

62.91 ± 8.83ab

54.60 ± 4.97ab

3.00 ± 0.61ab

1.69 ± 0.19abc

1.31 ± 0.32ab

0.5 mM

87.85 ± 3.38a

65.75 ± 7.59a

41.34 ± 3.05c

3.02 ± 0.63ab

1.66 ± 0.20abc

1.35 ± 0.31ab

1 mM

67.65 ± 2.14abc

48.19 ± 3.47abc

49.56 ± 1.67abc

2.70 ± 0.90ab

1.55 ± 0.38bc

1.14 ± 0.41ab

2 mM

78.21 ± 3.73ab

47.86 ± 2.81abc

50.38 ± 1.32ab

3.86 ± 0.67a

2.42 ± 0.24a

1.43 ± 0.31a

4 ds m⁻¹

control

81.41 ± 4.42a

46.65 ± 3.28abc

52.59 ± 4.15ab

2.92 ± 0.65ab

1.83 ± 0.29abc

1.08 ± 0.24ab

0.5 mM

71.64 ± 3.54ab

50.16 ± 3.08abc

44.91 ± 2.94bc

2.80 ± 0.53ab

1.89 ± 0.26abc

0.90 ± 0.16ab

1 mM

75.56 ± 2.27ab

52.07 ± 2.53ab

49.19 ± 5.19abc

3.56 ± 0.40ab

2.20 ± 0.10ab

1.35 ± 0.18ab

2 mM

75.58 ± 3.05ab

58.98 ± 7.3abc

42.72 ± 4.45bc

3.22 ± 0.44ab

2.39 ± 0.10a

0.83 ± 0.23ab

8 ds m⁻¹

control

66.45 ± 4.61abc

41.54 ± 3.55bc

60.11 ± 2.96a

2.40 ± 0.68b

1.65 ± 0.39abc

0.73 ± 0.17ab

0.5 mM

54.62 ± 2.01c

48.99 ± 3.66 abc

50.11 ± 4.46ab

2.57 ± 0.80ab

1.74 ± 0.46abc

0.83 ± 0.22ab

1 mM

73.97 ± 3.15ab

43.97 ± 3.92bc

54.29 ± 5.82ab

2.99 ± 0.72ab

2.07 ± 0.36ab

0.92 ± 0.24ab

2 mM

59.68 ± 1.65bc

37.61 ± 2.51bc

57.64 ± 4.58ab

3.77 ± 0.62ab

2.37 ± 0.30ab

1.30 ± 0.22ab

12 ds m⁻¹

control

51.86 ± 2.84c

34.96 ± 4.57bcd

60.90 ± 2.49a

2.39 ± 0.48b

1.47 ± 0.20c

0.62 ± 0.17b

0.5 mM

68.04 ± 3.26abc

46.69 ± 2.66 abc

47.61 ± 1.73abc

2.45 ± 0.36ab

1.76 ± 0.14abc

0.69 ± 0.12ab

1 mM

60.10 ± 2.08bc

28.16 ± 1.95d

48.85 ± 4.49abc

3.05 ± 0.35ab

2.14 ± 0.10ab

0.91 ± 0.14ab

2 mM

61.21 ± 2.11bc

32.74 ± 1.2bcd

59.25 ± 4.22ab

3.69 ± 0.42ab

2.03 ± 0.18abc

1.06 ± 0.14ab