Figure 1: Ameliorative effects of SA and JA on potassium (K) content in root and
shoot of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given mg/g DW)
K content (mg/g DW)
Root
C
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
95
Growth stages (DAS)
K content (mg/g DW)
Shoot
9
8
7
6
5
4
3
2
1
0
C
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
Growth stages (DAS)
95
Figure 2: Ameliorative effects of SA and JA on calcium (Ca) content in root and
shoot of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given mg/g DW)
Root
C
Ca content (mg/g DW)
3
D
2.5
DS1
2
DS2
1.5
DS3
1
DJ1
0.5
DJ2
0
DJ3
50
65
80
95
Growth stages (DAS)
Shoot
C
Ca content (mg/g DW
4
D
3.5
3
DS1
2.5
DS2
2
DS3
1.5
DJ1
1
DJ2
0.5
DJ3
0
50
65
80
Growth stages (DAS)
95
Total chlorophyll content (mg/g FW)
Figure 3: Ameliorative effects of SA and JA on total chlorophyll and carotenoid
content of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given mg/g FW)
2
1.8
C
1.6
1.4
D
1.2
DS1
1
DS2
0.8
DS3
0.6
DJ1
0.4
DJ2
0.2
DJ3
0
50
65
80
95
Growth stages (DAS)
Carotenoid content (mg/g FW)
0.9
0.8
0.7
C
0.6
D
0.5
DS1
0.4
DS2
0.3
DS3
0.2
DJ1
0.1
DJ2
0
DJ3
50
65
80
Growth stages (DAS)
95
Figure 4: Ameliorative effects of SA and JA on amino acid content in root and
shoot of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given mg/g FW)
Amino acid content (mg/g FW)
Root
4
C
3.5
D
3
DS1
2.5
DS2
2
DS3
1.5
DJ1
1
0.5
DJ2
0
DJ3
50
65
80
95
Growth stages (DAS)
Shoot
Amino acid content (mg/g FW)
5
4.5
C
4
D
3.5
3
DS1
2.5
DS2
2
DS3
1.5
DJ1
1
DJ2
0.5
DJ3
0
50
65
80
Growth stages (DAS)
95
Figure 5: Ameliorative effects of SA and JA on glycine betaine content in root
and shoot of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given μg/g DW)
Glycinebetaine content (μg/g DW)
Root
C
45
40
35
30
25
20
15
10
5
0
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
95
Glycinebetaine content (μg/g DW)
Growth stages DAS)
Shoot
C
50
45
40
35
30
25
20
15
10
5
0
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
Growth stages (DAS)
95
Figure 6: Ameliorative effects of SA and JA on sucrose content in root and shoot
of Allium cepa under drought stress. (Values are the mean ±SE of six replicates and
are given mg/g FW)
Root
C
Sucrose content (mg/g FW)
6
D
5
DS1
4
DS2
3
DS3
2
DJ1
1
DJ2
0
DJ3
50
65
80
95
Growth stages (DAS)
Sucrose content (mg/g FW)
Shoot
8
C
7
D
6
DS1
5
DS2
4
DS3
3
DJ1
2
DJ2
1
DJ3
0
50
65
80
Growth stages (DAS)
95
Figure 7: Ameliorative effects of SA and JA on starch content in root and shoot
of Allium cepa under drought stress. (Values are the mean ±SE of six replicates and
are given mg/g FW)
starch (mg/g FW )
Root
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
C
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
95
Growth stages (DAS)
Shoot
8
C
Starch (mg/g FW)
7
D
6
DS1
5
DS2
4
3
DS3
2
DJ1
1
DJ2
0
DJ3
50
65
80
Growth stages (DAS)
95
Proline Oxidase activity (µg/min/mg)
Figure 8: Ameliorative effects of SA and JA on proline oxidase activity in root
and shoot of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given µg/min/mg protein)
Root
C
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
95
Proline Oxidase activity (µg/min/mg)
Growth stages (DAS)
Shoot
C
1.2
D
1
DS1
0.8
DS2
0.6
DS3
0.4
DJ1
0.2
DJ2
0
DJ3
50
65
80
Growth stages (DAS)
95
Figure 9: Ameliorative effects of SA and JA on ascorbic acid content in root and
shoot of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given mg/g FW)
Root
Ascorbic acid content (mg/g FW)
8
7
C
6
D
5
DS1
4
DS2
3
DS3
2
DJ1
1
DJ2
0
DJ3
50
65
80
95
Growth stages (DAS)
Ascorbic acid content (mg/g FW)
7
Shoot
6
C
5
D
4
DS1
DS2
3
DS3
2
DJ1
1
DJ2
0
DJ3
50
65
80
Growth stages (DAS)
95
Figure 10: Ameliorative effects of SA and JA on superoxide dismutase (SOD)
activity in root and shoot of Allium cepa under drought stress. (Values are the
mean ±SE of six replicates and are given U/mg protein)
SOD activity (U/mg protein)
Root
C
9
8
7
6
5
4
3
2
1
0
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
95
Growth stages (DAS)
Shoot
C
SOD activity (U/mg protein)
12
D
10
DS1
8
DS2
6
DS3
4
DJ1
2
DJ2
0
DJ3
50
65
80
Growth stages (DAS)
95
Figure 11: Ameliorative effects of SA and JA on catalase (CAT) activity in root
and shoot of Allium cepa under drought stress. (Values are the mean ±SE of six
replicates and are given U/mg protein)
CAT activity (U/mg protein)
Root
C
10
9
8
7
6
5
4
3
2
1
0
D
DS1
DS2
DS3
DJ1
DJ2
DJ3
50
65
80
95
Growth stages (DAS)
CAT activity (U/mg protein)
Shoot
14
C
12
D
10
DS1
8
DS2
6
DS3
4
DJ1
2
DJ2
0
DJ3
50
65
80
Growth stages (DAS)
95
Figure 12: Ameliorative effects of SA and JA on ascorbate peroxidase (APX)
activity in root and shoot of Allium cepa under drought stress. (Values are the
mean ±SE of six replicates and are given U/mg protein)
APX activity (U/mg protein)
Root
35
C
30
D
25
DS1
20
DS2
15
DS3
10
DJ1
5
DJ2
0
DJ3
50
65
80
95
Growth stages (DAS)
APX activity (U/mg protein)
Shoot
70
C
60
D
50
DS1
40
DS2
30
DS3
20
DJ1
10
DJ2
0
DJ3
50
65
80
Growth stages (DAS)
95