Bilal Ahmad Khan

Title : Optimizing the doses of chitosan/Tripolyphosphate loaded nanoparticles of clodinofop propargyl and fenoxaprop-P-ethyl to manage Avena fatua L.: An environmentally safer alternative tool to control weeds

Abstract:

Avena fatua is a main and troublesome weed of wheat all over the globe. Controlling weeds by use of chemical means is a quick and efficient method for weed management, however, herbicides are criticized for environmental pollution and resistance development in weeds. Therefore, the present study was planned for chemical synthesis, characterization, and dose optimization of chitosan-based nanoparticles of clodinofop Propargyl and fenoxaprop-P-ethyl for management of A. fatua. Chitosan based nanoparticles of clodinofop Propargyl and fenoxaprop-P-ethyl were prepared by ionic glification technique. The nano-particles of clodinofop Propargyl and fenoxaprop-P-ethyl were sprayed at 3-4 leaf stage of P. minor weed at seven different doses (D₀= Weedy Check, D₁= Normal herbicide at recommended dose, D₂= Nano herbicide at recommended dose of normal herbicide, D₃= 05-fold lower dose of nano herbicide, D₄= 10-fold lower dose of nano herbicide, D₅= 15-fold lower dose of nano herbicide and D₆=20-fold lower dose of nano herbicide) were used Chitosan based nano-particles of herbicides were characterized for U-V absorbance study, SEM, FT-IR and XRD. The chitosan-based nanoparticles of clodinofop Propargyl and fenoxaprop-P-ethyl at recommended dose of normal herbicide weed and cause 100% mortality and visual injury. However, 5-fold lower dose of chitosan-based nanoparticles of clodinofop Propargyl and fenoxaprop-P-ethyl caused maximum visual injury (93.83%), mortality (91.67%) and minimum chlorophyll contents (9.33%), plant height (6.25 cm), fresh biomass (0.31g) and dry biomass (0.13g) of A. fatua. Chitosan based nanoparticles of clodinofop Propargyl and fenoxaprop-P-ethyl at 10-fold lower dose of normal herbicides and recommended dose of clodinofop Propargyl and fenoxaprop-P-ethyl produce similar effect on chlorophyll contents, visual injury, mortality, plant height, fresh biomass and dry biomass of A. fatua.

Biography:

Mr. Bilal Ahmad Khan PhD candidate in Department of Agronomy, College of Agriculture, University of Sargodha-40100, Sargodha, Pakistan and Research Fellow in Department of Soil and Crop Sciences, College Station, Texas A&M, USA 77843. In PhD his area of Research is Nanoparticles of herbicides for management of weeds to enhances the Agricultural crop production without deteriorating the Environment. I have earned my master’s degree from Department of Agronomy, College of Agriculture, University of Sargodha-40100, Sargodha, Pakistan during 2017-2019 and my area of research was Low dose of glyphosate hormesis to enhance the agricultural crop production. Currently I’m Research Fellow in Department of Soil and Crop Sciences, College Station, Texas A&M, USA 77843 to complete my PhD Research work.