Comparative Influence of Water Soluble Phenolics of Warm Climate Aquatic Weeds on Weeds Species Composition and Rice-Wheat Cropping System.
Journal Title: Scientia Agriculturae - Year 2015, Vol 10, Issue 3
Abstract
Impacts of water soluble phenolics are very imperative in establishing species composition in agro-ecosystem. Effects of aqueous extracts and residues of Alternanthera philoxeroides, A. sessilis, Conyza stricta, Polygonum barbatumand and Echinochloa crus-galli at different concentration were assessed on germination and growth attributes of rice (Oryza sativa L.) and wheat (Triticum aestivum L.) under controlled conditions, during 2014. Results revealed that water soluble phenolics released from these weeds produce strong inhibitory effects on germination and growth of both rice and wheat, however inhibition was dose dependent at higher doses more inhibition was occurred. Allelopthic effects of A. philoxeroides and A. sessilis were stronger as compared to other weeds, which may a reason for invasion of Alternanthera spp. in rice ecosystem. HPLC analysis confirmed that the main phenolic are 4-Hydroxy-3- Methoxybenzoic acid, m-Coumaric acid, p-Coumaric acid, Chlorogenic acid, Ferulic acid, Gallic acid Vanilic acid, Caffeic acid and Chlorogenic acid in tested weeds. It may conclude that rice weeds have water soluble phenolics in their tissues which influence the weeds species composition in rice ecosystem and rice-wheat cropping system sustainability.
Authors and Affiliations
Abbas Tasawer, Muhammad Ather Nadeem, Asif Tanveer, Ali Zohaib
Keywords
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- EP ID EP95160
- DOI 10.15192/PSCP.SA.2015.10.3.145150
- Views 144
- Downloads 0
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