Response of Maize Seedlings to Cadmium Application after Different Time Intervals
Table 2
Means comparison data for growth and biochemical attributes of two maize (Zea mays L.) lines under different treatments of cadmium after different time intervals.
Lines
Time (d)
Cd (mg kg−1)
SDW
RDW
Leaf area
Chl a
Chl b
Tot-Chl
Car.
RMP
MDA
H2O2
TAA
Proline
Anth.
0
2.23 ± 0.01no
2.23 ± 0.04kl
20.47 ± 0.06op
3.61 ± 0.22c
2.57 ± 0.26c
6.18 ± 0.35b
1.36 ± 0.00a
32.72 ± 0.33n
8.04 ± 0.13tu
6.14 ± 0.01s
0.97 ± 0.02lmno
5.99 ± 0.06j
2.44 ± 0.03o
3
2.08 ± 0.06o
1.81 ± 0.06no
19.15 ± 1.47p
3.20 ± 0.08d
2.38 ± 0.05de
5.58 ± 0.10c
1.20 ± 0.02b
35.39 ± 0.67n
9.46 ± 0.06st
8.20 ± 0.06q
1.12 ± 0.01jklm
6.20 ± 0.04j
6.62 ± 0.28k
5
6
1.73 ± 0.04pq
1.41 ± 0.05pq
17.68 ± 0.09q
2.71 ± 0.04e
2.09 ± 0.04f
4.79 ± 0.07de
0.97 ± 0.00d
39.40 ± 0.33n
12.66 ± 0.32qr
11.45 ± 0.09no
1.17 ± 0.00jkl
7.77 ± 0.04g
9.13 ± 0.28i
9
1.56 ± 0.02q
1.33 ± 0.04qr
16.67 ± 0.81qr
2.10 ± 0.06f
1.19 ± 0.03i
3.29 ± 0.07g
0.78 ± 0.01f
45.06 ± 1.00l
15.93 ± 0.59klmn
13.46 ± 0.26lm
1.42 ± 0.16hi
9.60 ± 0.19d
10.70 ± 0.15gh
12
1.30 ± 0.03r
1.13 ± 0.06r
15.70 ± 0.32r
0.55 ± 0.04klm
0.41 ± 0.17op
0.96 ± 0.13mn
0.56 ± 0.01h
56.39 ± 0.33j
18.90 ± 0.57gh
16.14 ± 0.16gh
1.61 ± 0.09gh
12.57 ± 0.22b
13.30 ± 0.28e
0
4.76 ± 0.02cd
2.82 ± 0.08fg
37.27 ± 0.43e
1.63 ± 0.08g
3.03 ± 0.01b
4.66 ± 0.09e
0.85 ± 0.02e
32.55 ± 0.64n
8.21 ± 0.39tu
6.87 ± 0.00r
0.87 ± 0.05no
4.05 ± 0.16n
4.12 ± 0.28lm
3
3.95 ± 0.10f
2.68 ± 0.05ghi
34.74 ± 0.11hi
1.02 ± 0.00i
2.36 ± 0.03de
3.38 ± 0.03fg
0.65 ± 0.01g
46.93 ± 1.20l
17.94 ± 0.52ghij
11.85 ± 0.06n
1.00 ± 0.04lmno
4.55 ± 0.01m
9.13 ± 0.28i
MTM-1
10
6
3.42 ± 0.02g
2.61 ± 0.05ghi
33.46 ± 0.33ij
0.65 ± 0.02k
1.08 ± 0.02ij
1.73 ± 0.04j
0.38 ± 0.01k
67.24 ± 0.56i
19.40 ± 1.20fg
12.87 ± 0.34m
1.31 ± 0.11ijk
5.51 ± 0.48k
10.24 ± 0.09gh
9
3.05 ± 0.08hi
2.50 ± 0.23hijk
32.53 ± 0.50jk
0.47 ± 0.02lm
0.91 ± 0.04jk
1.38 ± 0.02k
0.31 ± 0.01l
83.60 ± 1.19de
22.13 ± 1.37e
15.04 ± 0.13j
1.36 ± 0.05ij
6.91 ± 0.02hi
15.25 ± 0.02d
12
2.88 ± 0.13ijk
2.47 ± 0.06ijk
31.96 ± 0.03k
0.27 ± 0.01o
0.21 ± 0.00qr
0.48 ± 0.02pq
0.12 ± 0.00o
91.58 ± 1.35b
26.03 ± 0.80cd
17.63 ± 0.15f
1.51 ± 0.09hi
8.93 ± 0.03ef
17.76 ± 0.28b
0
4.78 ± 0.09cd
3.58 ± 0.08bc
36.96 ± 0.35ef
0.81 ± 0.03j
1.25 ± 0.03i
2.06 ± 0.02hi
0.30 ± 0.01l
66.13 ± 1.73i
16.81 ± 0.16ijkl
15.86 ± 0.10hi
0.80 ± 0.08o
3.70 ± 0.17n
11.07 ± 0.74fg
3
4.28 ± 0.07e
3.40 ± 0.16cd
35.47 ± 0.38fgh
0.25 ± 0.01o
0.69 ± 0.03lm
0.95 ± 0.04mn
0.14 ± 0.01o
80.85 ± 0.36fg
24.58 ± 0.71d
21.51 ± 0.37d
0.90 ± 0.06mno
4.09 ± 0.01n
11.91 ± 0.28f
15
6
3.10 ± 0.10hi
2.88 ± 0.05fg
30.04 ± 0.16l
0.18 ± 0.02o
0.36 ± 0.01opq
0.54 ± 0.02op
0.08 ± 0.00p
84.88 ± 1.32de
27.39 ± 0.25bc
26.19 ± 0.55b
0.97 ± 0.03lmno
4.96 ± 0.02lm
13.86 ± 0.48e
9
3.01 ± 0.07hij
2.38 ± 0.09jk
29.28 ± 0.33l
0.15 ± 0.01o
0.26 ± 0.01pqr
0.41 ± 0.01pq
0.07 ± 0.00pqr
93.24 ± 1.54b
28.34 ± 0.56b
28.05 ± 0.25a
1.29 ± 0.07ijk
5.18 ± 0.09kl
16.42 ± 0.36c
12
2.49 ± 0.11lm
1.95 ± 0.09mn
25.23 ± 0.16n
0.12 ± 0.01o
0.16 ± 0.01r
0.28 ± 0.01q
0.06 ± 0.00pqr
99.72 ± 1.54a
30.47 ± 1.20a
28.33 ± 0.04a
1.48 ± 0.06hi
6.67 ± 0.15i
19.43 ± 0.28a
0
2.70 ± 0.11kl
2.22 ± 0.06klm
30.43 ± 0.35l
4.42 ± 0.10a
3.20 ± 0.01ab
7.63 ± 0.11a
1.34 ± 0.01a
23.74 ± 0.33p
7.59 ± 0.30u
3.44 ± 0.05t
2.05 ± 0.13f
6.86 ± 0.03i
2.73 ± 0.28o
3
2.78 ± 0.01jk
2.48 ± 0.07ijk
35.41 ± 0.34gh
3.92 ± 0.04b
2.49 ± 0.01cd
6.41 ± 0.06b
1.13 ± 0.02c
29.06 ± 0.58o
9.29 ± 0.30stu
7.45 ± 0.03r
2.86 ± 0.04d
7.91 ± 0.02g
4.80 ± 0.13l
5
6
2.38 ± 0.09mn
2.03 ± 0.01lmn
27.41 ± 0.57m
3.13 ± 0.02d
2.27 ± 0.03e
5.40 ± 0.04c
0.75 ± 0.01f
33.40 ± 0.88m
10.45 ± 0.13s
10.46 ± 0.30p
3.13 ± 0.12c
9.17 ± 0.06e
7.84 ± 0.54j
9
2.16 ± 0.09no
1.90 ± 0.03n
25.41 ± 0.37n
3.10 ± 0.00d
1.76 ± 0.03g
4.86 ± 0.03de
0.49 ± 0.01i
40.07 ± 0.58m
12.47 ± 0.54r
13.68 ± 0.25kl
3.48 ± 0.06b
11.21 ± 0.11c
10.68 ± 0.16gh
12
1.83 ± 0.08p
1.61 ± 0.06op
21.37 ± 0.28o
2.61 ± 0.03e
0.86 ± 0.00kl
3.47 ± 0.04fg
0.43 ± 0.01j
47.44 ± 1.84l
14.58 ± 0.35mnop
15.44 ± 0.08ij
3.79 ± 0.09a
14.67 ± 0.13a
11.78 ± 0.13f
0
4.42 ± 0.12e
3.00 ± 0.08ef
42.94 ± 0.55c
1.76 ± 0.06g
3.23 ± 0.02a
4.99 ± 0.08d
0.26 ± 0.01m
47.39 ± 1.18l
12.20 ± 0.36r
10.91 ± 0.27op
0.87 ± 0.03no
6.85 ± 0.03i
3.02 ± 0.01no
3
5.56 ± 0.09a
3.31 ± 0.09cd
51.12 ± 0.98a
1.33 ± 0.01h
2.27 ± 0.00e
3.60 ± 0.02f
0.19 ± 0.00n
53.07 ± 1.41k
13.20 ± 0.31pqr
12.02 ± 0.02n
1.08 ± 0.05klmn
7.30 ± 0.08h
6.07 ± 0.56k
MTM-2
10
6
4.75 ± 0.06cd
3.20 ± 0.06de
45.04 ± 0.58b
1.29 ± 0.03h
2.08 ± 0.02f
3.37 ± 0.02fg
0.13 ± 0.01o
65.12 ± 0.57i
14.33 ± 0.17nopq
13.49 ± 0.07lm
1.77 ± 0.04g
8.65 ± 0.13f
9.96 ± 0.04hi
9
3.98 ± 0.08f
2.50 ± 0.03hijk
39.43 ± 0.32d
0.62 ± 0.02kl
1.25 ± 0.02i
1.87 ± 0.03ij
0.12 ± 0.01o
78.65 ± 0.80g
15.25 ± 0.54lmno
14.96 ± 0.03j
2.47 ± 0.10e
11.03 ± 0.02c
11.74 ± 0.08f
12
3.16 ± 0.09h
2.06 ± 0.01lmn
35.95 ± 0.57efgh
0.19 ± 0.00o
0.67 ± 0.03m
0.86 ± 0.03mn
0.05 ± 0.00qr
85.83 ± 0.29cd
17.47 ± 0.76hijk
16.10 ± 0.56gh
2.77 ± 0.13d
12.23 ± 0.34b
13.02 ± 0.05e
0
4.38 ± 0.09e
3.75 ± 0.10ab
39.65 ± 0.34d
0.64 ± 0.01k
1.47 ± 0.03h
2.12 ± 0.03h
0.25 ± 0.01m
56.16 ± 0.36j
13.99 ± 0.23opqr
11.71 ± 0.24n
0.76 ± 0.04o
4.72 ± 0.11m
3.76 ± 0.05mn
3
5.32 ± 0.04b
3.98 ± 0.24a
45.70 ± 0.08b
0.50 ± 0.01klm
0.77 ± 0.01klm
1.27 ± 0.00kl
0.14 ± 0.00o
72.17 ± 0.61h
15.37 ± 0.27lmno
14.15 ± 0.08k
0.97 ± 0.03lmno
4.88 ± 0.06lm
6.07 ± 0.28k
15
6
4.98 ± 0.14c
3.36 ± 0.05cd
44.67 ± 0.33b
0.44 ± 0.01mn
0.61 ± 0.01mn
1.06 ± 0.01lm
0.07 ± 0.00pq
82.48 ± 0.88ef
16.32 ± 0.27jklm
16.74 ± 0.19g
1.28 ± 0.05ijk
6.07 ± 0.03j
14.97 ± 0.28d
9
4.66 ± 0.14d
3.30 ± 0.08cd
39.33 ± 0.33d
0.29 ± 0.01no
0.48 ± 0.00no
0.78 ± 0.01no
0.07 ± 0.00pqr
87.71 ± 0.33c
18.37 ± 0.33ghi
20.08 ± 0.06e
1.83 ± 0.01g
7.91 ± 0.04g
15.53 ± 0.10d
12
4.03 ± 0.09f
2.78 ± 0.07fgh
36.77 ± 0.24efg
0.27 ± 0.01o
0.22 ± 0.01qr
0.49 ± 0.00pq
0.04 ± 0.00r
92.82 ± 0.66b
20.97 ± 0.02ef
24.72 ± 0.03c
2.05 ± 0.04f
9.29 ± 0.09de
17.47 ± 0.28b
All the values represent mean + S.E. and values that show the same superscript letter in the same column are not significantly different at . SFW: shoot fresh weight; RDW: root dry weight; Chl. a: chlorophyll a; Chl. b: chlorophyll b; Car.: carotenoids; Anth.: anthocyanin. MDA: malendialdehyde; RMP: relative membrane permeability; H2O2: hydrogen peroxide; TAA: total free amino acids.