Comparative impact of genetically modified and non modified maize (Zea mays L.) on succeeding crop and associated weed. (April 2016)

• Record Type: Journal Article
• Authors: Ibrahim, Muhammad; Ahmed, Naseer; Ullah, Faizan; Shinwari, Zabta Khan; Bano, Asghari
• Is Part Of: Toxicology and industrial health. Volume 32:Number 4(2016)
• Page Start: 614
• Page End: 624
• Publication Date: 2016-04
• Subjects: GM maize -- aqueous extracts -- methanolic extracts -- phenolics; Toxicology, Experimental -- Periodicals; Industrial toxicology -- Periodicals; 615.9
• DOI: 10.1177/0748233713505125
• Languages: English
• ISSNs: 0748-2337

Abstract

This research work documents the comparative impact of genetically modified (GM) (insect resistance) and non modified maize ( Zea mays L.) on growth and germination of succeeding crop wheat ( Triticum aestivum L.) and associated weed ( Avena fatua L.). The aqueous extracts of both the GM and non-GM maize exhibited higher phenolic content than that of methanolic extracts. Germination percentage and germination index of wheat was significantly decreased by GM methanolic extract (10%) as well as that of non-GM maize at 3% aqueous extract. Similarly germination percentage of weed ( Avena fatua L.) was significantly reduced by application of 3% and 5% methanolic GM extracts. All extracts of GM maize showed non-significant effect on the number of roots, root length and shoot length per plant but 5% and 10% methanolic extracts of non-GM maize significantly increased the number of roots per plant of wheat seedling. Similarly, 10% methanolic extract of GM maize significantly increased the number of roots per plant of weed seedling. Methanolic extracts of GM and non-GM maize (3% and 5%) significantly decreased the protease activity in wheat as compared to untreated control.