PMID: 70252Aug 1, 1977Paper

Effects of pesticide seed treatments on Rhizobium japonicum and its symbiotic relationship with soybean

Bulletin of Environmental Contamination and Toxicology
C M Tu

Abstract

Seventeen Rhizobium japonicum cultures isolated from soybean nodules induced formation of nodules on taproots of soybean plants. All isolates reduced acetylene to ethylene to different extents in vitro. Paper disc assay indicated that two insecticides, lindane (gamma-1,2,3,4,5,6-hexachlorocyclohexane), chlorpyrifos (O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate), and a fungicide, thiram (tetramethylthiuram disulphide) individually or in combination caused significant inhibition of the growth of R. japonicum No. 16. The effects of insecticide-fungicide seed treatments on the nitrogenase activity of soybean plants in nitrogen-fixing capacity, weights of leaves, stems, and nodules were determined. Thiram, singly or in combination with lindane and/or chlorpyrifos, significantly delayed growth of the plants and affected the activity of nitrogenase in the fixation of nitrogen 3 weeks after treatments. No drastic effect of any of the pesticide treatments on soybean plant growth was observed after 8 weeks.

References

Jun 1, 1975·The American Journal of Digestive Diseases·J M FalkoF B Thomas
Apr 1, 1958·Journal of Bacteriology·S HINO, P W WILSON

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Citations

Jun 1, 1986·Bulletin of Environmental Contamination and Toxicology·K Tesfai, M A Mallik
Oct 1, 1983·Bulletin of Environmental Contamination and Toxicology·M A Malik, K Tesfai
Sep 1, 1980·Bulletin of Environmental Contamination and Toxicology·C M Tu
Feb 6, 2020·Journal of Applied Microbiology·J R RathjenM D Denton

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