We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Response of Maize Seedlings to Cadmium Application after Different Time Intervals.
- Authors
Hussain, Iqbal; Akhtar, Shamim; Ashraf, Muhammad Arslan; Rasheed, Rizwan; Siddiqi, Ejaz Hussain; Ibrahim, Muhammad
- Abstract
Present study was conducted to appraise the inhibitory effects of cadmium applied at different time intervals on various growth and biochemical parameters in two maize lines, Maize-TargetedMutagenesis 1 and 2 (MTM-1 and MTM-2). Twenty-day-old seedlings were exposed to 0, 3, 6, 9, and12 mg CdCl2 kg-1 sand. Bothmaize lines exhibited significant perturbations in important biochemical attributes being employed for screening the crops for cadmium tolerance. The results showed that a higher concentration of cadmium (12mg CdCl2 kg-1) considerably reduced the plant growth in line MTM-1 on the 5th, 10th, and 15th day after the treatment. In contrast, irrespective of exposure time, the plant biomass and leaf area did not show inhibitory effects of cadmium, specifically at 3mg CdCl2 kg-1 in lineMTM-2. In addition,MTM-2 was found to bemore tolerant than lineMTM-1 in terms of lower levels of hydrogen peroxide (H2O2), malondialdehyde (MDA) contents, and relative membrane permeability (RMP). Moreover, H2O2, MDA, RMP, and anthocyanin increased at all levels of cadmium in both lines, but a significant decline was observed in photosynthetic pigments, total free amino acids, and proline contents in all treatments particularly on the 10th and 15th day after treatment.
- Subjects
CORN growth; SEEDLINGS; EFFECT of cadmium on plants; MUTAGENESIS; PHYSIOLOGICAL effects of hydrogen peroxide; MEMBRANE permeability (Biology); PLANTS
- Publication
ISRN Agronomy, 2013, p1
- ISSN
2090-7664
- Publication type
Article
- DOI
10.1155/2013/169610