Soil mycofloral responses following the exposure to 2, 4-D.
2, 4-dichlorophenoxyacetic acid (2,4-D) is a post emergence herbicide. The tests were conducted to study the toxicity of 2,4-D using EC50 value in four dilutions. 2,4-D was applied at concentration of 25, 50, 75, 100, 200 and 300 mg l(-1) in the potato Dextrose agar medium. The effect of this herbicide was evaluated as the colony forming unit (CFU). EC50 value for 10(-3) dilution of soil was 138 +/- 5.944 mg l(-1). Soil physico-chemical parameters and mycofloral properties were also evaluated. Qualitatively 10 genera of fungi were observed in untreated soil, whereas 4 genera were found in 2,4-D administered dose.
Joshi
Namita
N
Department of Environmental Science, Kanya Gurukul Mahavidyalaya, Gulukul Kangri University, Haridwar, India.
Gupta
Deep
D
D015084:2,4-Dichlorophenoxyacetic Acid / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D006540:Herbicides / Q000633:toxicity*; D006863:Hydrogen-Ion Concentration; D003904:Mitosporic Fungi / Q000145:classification / Q000187:drug effects* / Q000254:growth & development; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000737:chemistry / Q000633:toxicity*; D013696:Temperature; D018675:Toxicity Tests
D006540:Herbicides; D012989:Soil Pollutants; D015084:2,4-Dichlorophenoxyacetic Acid