en   ru   uk  
Fiziol. rast. genet. 2017, vol. 49, no. 6, 513-520, doi: https://doi.org/10.15407/frg2017.06.513


Guralchuk Zh.Z., Sychuk A.M., Gumenyuk O.V., Rodzevich O.P., Grynyuk S.O., Morderer Ye.Yu.

  • Institute of Plant Physiology and Genetics, National Academy of Sciences of Ukraine 31/17 Vasylkivska St., Kyiv, 03022, Ukraine

The efficacy of herbicide glyphosate can significantly depend on the quality of water used for the preparation of spray solutions. Data on the effectiveness of the adjuvants use for increase the phytotoxic effect of glyphosate are quite contradictory, which may be due to differences in the sensitivity to water quality of different glyphosate formulations. In this regard, the dependence on the quality of water in the spray solution of different glyphosate formulations action and the possibility of increasing the efficacy of these formulations by adding adjuvant Companion Gold were studied in pot and field experiments. It was shown that the phytotoxic effect of herbicide Clir, which contains the isopropylamine salt of glyphosate, was more influenced by the hardness of water, than the effect of herbicide Uragan Forte, whose active ingredient is the potassium salt of glyphosate. Addition of the adjuvant Companion Gold to the herbicide Clir accelerated the development of phytotoxic action and increased the effectiveness of weed control, which indicates the advisability of using an adjuvant with formulations based on isopropylamine salt of glyphosate.

Keywords: herbicides, glyphosate, water hardness, adjuvants

Fiziol. rast. genet.
2017, vol. 49, no. 6, 513-520

Full text and suplimented materials

Free full text: PDF  


1. Spyrydonov, Yu.Ya. & Nykytin, N.V. (2015). Glyphosate-containing herbicides - features technologies of their application in the world practice of crop production. Vestnyk zaschity rasteniy, 4(86), pp. 5-11 [in Russian].

2. Shvartau, V.V. (2004). Regulation of activity of herbicides with the help of chemical compounds. (Ed. V.V. Morgun). K.: Logos [in Ukrainian].

3. Altland, J. (2010). Water quality affects herbicide efficacy. Retrieved from http: // oregonstate.edu/dept/nursery-weeds/feature_articles/spray_tank/spray_tank.htm.

4. Buhler, D.D. & Burnside, O.C. (1983). Effect of water quality, carrier volume, and acid on glyphosate phytotoxicity. Weed Sci., 31, pp. 63-169.

5. Chahal, G.S., Jordan, D.L. & Burton, J.D. (2012). Influence of water quality and coapplied agrochemicals on efficacy of glyphosate. Weed Technology, 26, pp.167-176. https://doi.org/10.1614/WT-D-11-00060.1

6. Chahal, G., Roskamp, J., Legleiter, T. & Johnson B. (2012). The influence of spray water quality on herbicide efficacy. Purdue Weed Sci. Retrieved from http://www.btny.purdue.edu/weedscience.

7. Farm chemical spraying and mixing water quality. (2000). Water quality matters. Retrieved from http: // www.pfra.ca/doc/WaterQuality/WaterQualityGeneral/farm_chemical.pdf.

8. Griffin, J.L. (2009). Water quality effects on pesticides. Retrieved from http://www.lacal.org/Presentations/2009/WaterQualityEffects2009.pdf.

9. Hartzler, R.M. (2001). Absorption of foliar-applied herbicides. Retrieved from http://www.weeds.iastate.edu/mgmt/2001/absorp.htm.

10. Nalewaja, J.D. & Matysiak, R. (1991). Salt antagonism of glyphosate. Weed Science, 39, pp. 622-628.

11. Nalewaja, J.D. & Matysiak, R. (1993). Spray carrier salts affect herbicide toxicity to kochia (Kochia scoparia).Weed Technology, 7, pp. 154-158. https://doi.org/10.1017/S0890037X00037040

12. Nalewaja, J.D., Woznica, Z. & Matysiak, R. (1991). 2,4-D antagonism by salts. Weed Technology, 5, pp. 873-880. https://doi.org/10.1017/S0890037X00034011

13. Sandberg, C.L., Meggitt, W.F. & Penner, D. (1978). Effect of diluent volume and calcium on glyphosate phytotoxicity. Weed Science, 26, pp. 476-479.

14. Sharma, S.D. & Singh, M. (2000). Optimizing foliar activity of glyphosate on Bidens frondosa and Panicum maximum with different adjuvant types.Weed Res., 40, No. 6, pp. 523-533. https://doi.org/10.1046/j.1365-3180.2000.00209.x

15. Shea P.J. & Tupy, D.R. (1984). Reversal of cation-induced reduction in glyphosate activity with EDTA. Weed Science, 32, pp. 802—806.

16. Stahlman, P.W. & Phillips, W.M. (1979). Effects of water quality and spray volume on glyphosate phytotoxicity. Weed Science, 27, pp. 38-41.

17. Thelen, K.D., Jackson, E.P. & Penner, D. (1995). The basis for the hard-water antagonism of glyphosate activity. Weed Science, 43, pp. 541-548.

18. Water Quality and Herbicides. Produced by Canada-Saskatchewan Agriculture Green Plan Agreement. Retrieved from http://www.saskatchewan.ca/business/agriculture-natural-resources-and-industry/agribusiness-farmers-and-ranchers/crops-and-irrigation/crop-protection/weeds/water-quality-and-herbicides.

19. Wills, G.D. & McWhorter, C.G. (1985). Effect of inorganic salts on the toxicity and translocation of glyphosate and MSMA in purple nutsedge (Cyprus rotundus). Weed Science, 33, pp. 755-761. https://doi.org/10.1017/S0043174500083296

20. Woznica, Z., Nalewaja, J.D., Messersmith, C.G. & Milkowski P. (2003). Quinclorac efficacy as affected by adjuvants and spray carrier water. Weed Technology, 17, pp. 582-588. https://doi.org/10.1614/0890-037X(2003)017[0582:QEAABA]2.0.CO;2