Soil mycofloral responses following the exposure to 2, 4-D
Joshi, N.; Gupta, D.
Journal of Environmental Biology 29(2): 211-214
2008
ISSN/ISBN: 0254-8704 PMID: 18831377 Document Number: 616256
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 mgl(-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.