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
Related Articles
- EP ID EP95160
- DOI 10.15192/PSCP.SA.2015.10.3.145150
- Views 137
- Downloads 0
Spray mass flux application variables of tree sprayers
Laboratory and field investigations were conducted to study the effect of spray application parameter such as volume liquid flow rate, volume air flow rate, cross sectional area of spray jet and sprayer-tree distan...
Growth and Yield Trial of Sixteen Rice Varieties under System of Rice Intensification
An experiment was conducted to evaluate the performance of sixteen rice varieties coded from V1 to V16 under SRI. All parameters showed significant variation among rice varieties and all varieties showed early matu...
Combined effect of solar drying and gamma radiation on the microbiological quality of mushrooms (Pleurotus ostreatus (Ex.Fr.)
The microbiological quality of dried Pleurotus ostreatus stored at room temperature was evaluated after solar drying and gamma irradiation at low doses of 0 (control), 0.5, 1, 1.5 and 2 kGy at a dose rate of 1.7 k...
Technical, allocative and economic efficiency of cassava producers in oyo state of Nigeria.
The study evaluates technical, allocative and economic analysis of cassava production in Oyo State of Nigeria. Data were collected by the use of multistage random sampling with the help of well-structured questionn...
Genetic behavior of grain yield and its components in barley crosses under water stress and non -stress conditions
Twenty one diallel crosses among seven Egyption barley cultivars showing clear differences in reaction to drought were made and evaluated under full and stress irrigation regimes at the Experimental Station, Facult...