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Effect of cadmium chloride stress on maize and its management by gibberellic acid (GA)


The International Journal of Biological Research (TIJOBR)

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Ayesha Liaquat1, Moez Ullah Khan2*, Muhammad Qasim Kakar3, Zain Ullah3Sana Shaukat1

Zulnoon Haider4, Rafia Asghar5, Ayesha Idrees1,

1Department of BotanyUniversity of Agriculture, Faisalabad, Pakistan.

2Department of Plant Pathology, Sindh Agriculture University Tandojam, Sindh, Pakistan 

3Department of Agriculture & cooperative, Research Wing, Balochistan, Pakistan

4Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan.

5Department of Plant Pathology, Faculty of Food Crop & Sciences, PMAS Aid Agriculture University

*Corresponding email: moeez.ghilazi@gmail.com 

Submitted Accepted Published
Sep 02,2019 Nov 12,2019 Jan 13,2020

2020 / Vol: 3 / Issue: 1


Abstract


Maize is 3rd important cash crop of Pakistan after Triticum astivium and Oryza sativa. Cadmium is a heavy metal that affects various grain crops and gibberellic acid is a useful hormone against a variety of stress. To determine the effect of GA and Cd, a pot experiment was conducted in the OlD Botanical Garden University of Agriculture Faislabad. Two different maize varieties were used (Neelam and Desi makai). The concentrations of cadmium chloride (0 μM and 200 μM) and Gibberellic acid (0mg and 0.25 mg) were applied under CRD with three replications. Stress was applied after every 10 days and gibberellic acid was applied once in three leaves stage. After 60 days the plants were harvested. Different morphological parameters like fresh and dry root shoot weight, Root and shoot length, number of leaf, plant height and leaf area were recorded. All studied parameters were negatively affected by cadmium chloride while the foliar application of gibberellic acid improved these traits under cadmium chloride stress. Overall, Desi Makai performed better then Neelam in both stress and spray conditions.

Key word: cadmium chloride, gibberellic acid, Maize



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