Table 2 Shoot fresh weight (g plant⁻¹), dry weight (g plant⁻¹), shoot: root ratio (g g⁻¹), chlorophyll-a (mg g⁻¹ FW), chlorophyll-b (mg g⁻¹ FW), chlorophyll a/b, and total chlorophyll contents (mg g⁻¹ FW) of P. vulgaris L. after foliar application of different concentration of acetylsalicylic acid (ASA; 0, 0.1, 0.5, 1, 2, 3 mM) and exposed to different level of chilling stress (0, 2, 4 days)

0

0

2.85 ± 0.002 g

1.65 ± 0.00ij

0.78 ± 0.09i

6.95 ± 0.01 h

3.75 ± 0.03de

1.85 ± 0.01i

10.70 ± 0.04a

0.1

2.87 ± 0.02 g

1.64 ± 0.00i

0.69 ± 0.01i

6.92 ± 0.00 h

3.74 ± 0.02de

1.85 ± 0.01i

10.67 ± 0.02a

0.5

2.85 ± 0.01 g

1.66 ± 0.02ij

0.68 ± 0.00i

6.95 ± 0.01 h

3.76 ± 0.02de

1.85 ± 0.00i

10.71 ± 0.03a

1

2.85 ± 0.01 g

1.66 ± 0.00ij

0.70 ± 0.01i

6.93 ± 0.00 h

3.71 ± 0.00def

1.87 ± 0.00i

10.64 ± 0.00a

2

2.85 ± 0.00 g

1.64 ± 0.02ij

0.68 ± 0.01i

6.96 ± 0.03 h

3.72 ± 0.00ef

1.87 ± 0.01i

10.68 ± 0.03a

3

2.85 ± 0.00 g

1.72 ± 0.05j

0.70 ± 0.01i

6.96 ± 0.02 h

3.72 ± 0.00ef

1.87 ± 0.01i

10.68 ± 0.02ab

2

0

1.67 ± 0.03bc

0.64 ± 0.01b

2.25 ± 0.05b

4.86 ± 0.00b

2.68 ± 0.00d

1.82 ± 0.00b

7.54 ± 0.00bc

0.1

1.81 ± 0.04bcd

0.68 ± 0.00bc

1.75 ± 0.35bc

4.92 ± 0.00c

2.97 ± 0.00b

1.66 ± 0.00c

7.88 ± 0.00c

0.5

1.92 ± 0.01d

0.86 ± 0.00d

1.85 ± 0.28ef

5.13 ± 0.00 fg

3.34 ± 0.00a

1.54 ± 0.00 fg

8.48 ± 0.00c

1

2.11 ± 0.08e

1.25 ± 0.01 g

1.39 ± 0.01f

5.22 ± 0.01de

3.18 ± 0.00b

1.64 ± 0.00ef

8.40 ± 0.01a

2

1.82 ± 0.03 cd

0.73 ± 0.01c

1.48 ± 0.00f

5.18 ± 0.00d

3.12 ± 0.10b

1.66 ± 0.05de

8.29 ± 0.10a

3

1.73 ± 0.05bc

0.83 ± 0.01d

1.86 ± 0.02de

5.07 ± 0.05c

2.95 ± 0.02c

1.72 ± 0.03c

8.02 ± 0.03a

4

0

0.94 ± 0.03a

0.55 ± 0.00a

2.56 ± 0.01a

4.75 ± 0.02a

2.37 ± 0.00 g

2.01 ± 0.01a

7.12 ± 0.01a

0.1

1.79 ± 0.01bcd

0.71 ± 0.00bc

1.69 ± 0.01 cd

4.98 ± 0.01def

3.22 ± 0.01a

1.55 ± 0.00d

8.21 ± 0.02a

0.5

2.17 ± 0.01e

1.16 ± 0.01f

1.59 ± 0.04 h

5.53 ± 0.01 g

3.41 ± 0.01b

1.62 ± 0.01 h

8.94 ± 0.00ab

1

2.48 ± 0.02f

1.72 ± 0.01j

0.88 ± 0.01 h

5.74 ± 0.02efg

3.28 ± 0.00c

1.75 ± 0.01 h

9.02 ± 0.01bc

2

2.25 ± 0.00e

1.44 ± 0.01 h

1.48 ± 0.01 h

5.70 ± 0.01c

2.86 ± 0.00 g

2.00 ± 0.00 fg

8.56 ± 0.01c

3

1.66 ± 0.01b

0.97 ± 0.02e

1.77 ± 0.06 h

5.64 ± 0.00c

2.95 ± 0.01f

1.91 ± 0.00 g

8.59 ± 0.00c

Univariate; two-way ANOVA

 F_(corrected)

423.8***

1013.3***

2559.6***

263.5***

85.6***

1768.3***

34.23***

 F_(intercept)

111,905***

131,774***

2,011,183***

286,459***

239,993***

1,652,469***

622.28***

 F_(ASA)

2540.9***

5482.6***

20,123***

1506.7***

232.4***

13,321.5***

68.25***

 F_(chilling)

203.1***

686.9***

353.3***

169.7***

104.2***

395.9***

4.87**

 F_{(ASA*chilling)}

110.8***

282.7***

149.9***

61.9***

46.95***

143.9***

42.11***