In Vitro Cadmium-Induced Alterations in Growth and Oxidative Metabolism of Upland Cotton (Gossypium hirsutum L.)
Table 8
APX activity (µMg−1FW) of cotton callus culture (cv. YZ1) grown under various levels of cadmium.
Cd treatment (µM)
Stress periods
7 days
14 days
21 days
28 days
0
18.16 ± 1.42a (0.00)
12.74 ± 1.13b (0.00)
48.21 ± 1.49a (0.00)
49.49 ± 1.94bc (0.00)
550
9.72 ± 1.09c (46.44)
8.14 ± 0.62c (36.11)
48.00 ± 0.62a (0.44)
47.59 ± 1.75c (3.85)
700
12.64 ± 1.82bc (30.39)
17.06 ± 1.61a (−33.87)
49.50 ± 1.45a (−2.67)
50.36 ± 0.49bc (−1.75)
850
16.76 ± 0.85ab (7.70)
10.07 ±0.50bc (20.98)
47.14 ± 3.34a (2.22)
58.76 ± 2.01a (−18.72)
1000
13.29 ± 2.60abc (26.84)
3.85 ± 0.64d (67.32)
47.80 ± 1.44a (0.85)
53.41 ± 0.92b (−6.51)
Values are the means ± SE of three replications. Variants possessing the same letters are not statistically significant at 5% probability level. Other pieces of information are the same as in Table 1.