In Vitro Cadmium-Induced Alterations in Growth and Oxidative Metabolism of Upland Cotton (Gossypium hirsutum L.)

Table 4

MDA contents (nmolg⁻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	5.83 ± 0.42^bc; (0.00)	9.16 ± 0.85^a; (0.00)	6.56 ± 1.15^b; (0.00)	11.35 ± 0.00^ab; (0.00)
550	5.24 ± 0.58^c; (10.04)	7.05 ± 0.00^b; (23.03)	10.49 ± 1.00^a; (−59.95)	9.81 ± 0.70^b; (13.64)
700	8.09 ± 0.00^a; (−38.72)	9.63 ± 0.30^a; (−5.12)	8.60 ± 1.39^ab; (−31.11)	12.73 ± 0.20^ab; (−12.12)
850	8.60 ± 0.20^a; (−47.57)	9.46 ± 0.40^a; (−3.25)	10.32 ± 1.19^a; (−57.33)	13.96 ± 1.55^a; (−22.99)
1000	6.79 ± 0.43^b; (−16.54)	9.12 ± 0.10^a; (0.51)	9.29 ± 0.10^ab; (−41.60)	10.32 ± 1.29^b; (9.09)

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.