Plant Soil Environ., 2004, 50(2):88-94 | DOI: 10.17221/3687-PSE

Influence of soil pH, rainfall, dosage, and application timing of herbicide Merlin 750 WG (isoxaflutole) on phytotoxicity level in maize (Zea mays L.)

J. Soukup, M. Jursík, P. Hamouz, J. Holec, J. Krupka
Czech University of Agriculture in Prague, Czech Republic

Pot trials and field studies were carried out to describe the influence of soil pH and rainfall on the phytotoxic effect of the herbicide Merlin 750 WG (isoxaflutole) in maize. Symptoms as bleaching, and root and shoot weight reduction in early growth of maize were found. In pot trials, a statistically significant crop injury in early growth of maize was found only at the herbicide dose of 100 and 130 g/ha followed by 30 mm precipitation directly after herbicide application in soils with pH 6.5 and 7.2. Bleaching and significant weight reduction of maize up to growth stage BBCH 13 were observed in field trials at treatments with early post-emergence application of Merlin and 20 mm precipitations. Bleaching symptoms recovered up to BBCH 19. Significant differences were found in maize shoot weight and cob yield between treatments with and without watering (20 mm irrigation), and between pre- and post-emergence application of Merlin under field conditions. No significant differences were found between herbicide doses tested.

Keywords: herbicide; isoxaflutole; phytotoxicity; crop injury; maize; pH, rainfall

Published: February 29, 2004  Show citation

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Soukup J, Jursík M, Hamouz P, Holec J, Krupka J. Influence of soil pH, rainfall, dosage, and application timing of herbicide Merlin 750 WG (isoxaflutole) on phytotoxicity level in maize (Zea mays L.). Plant Soil Environ. 2004;50(2):88-94. doi: 10.17221/3687-PSE.
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    References

    1. Beltran E., Fenet H., Cooper J.F., Coste C.M. (2000): Kinetics of abiotic hydrolysis of isoxaflutole: Influence of pH and temperature in aqueous mineral buffered solutions. J. Agr. Food Chem., 48: 4399-4403. Go to original source... Go to PubMed...
    2. Beltran E., Fenet H., Cooper J.F., Coste C.M. (2001): Kinetics of chemical degradation of isoxaflutole: influence of the nature of aqueous buffers (alkanoic acid/sodium salt vs phosphate). Pest Manag. Sci., 57: 366-371. Go to original source... Go to PubMed...
    3. Bhowmik P.C., Kushwaha S., Mitra S. (1999): Response of various weed species and corn (Zea mays) to RPA 201772. Weed Technol., 13: 504-509. Go to original source...
    4. Créange P., Hornuf A., Breuer H. (1998): Isoxaflutole, a new active ingredient, a new mode of action to solve maize weeds problems. J. Plant Dis. Prot., Spec. Iss., XVI: 555-558.
    5. Hock B., Fedtke C., Schmidt R.R. (1995): Herbizide. Georg Thieme Verlag, Stuttgart, New York.
    6. Hornuf A., Breuer H., Créange P. (1998): Versuchsergebnisse mit RPA.31130H (Merlin) zur Unkrautbekämpfung in Mais. Z. Pfl.-Krankh. Pfl.-Schutz, Sonderh., XVI: 559-563.
    7. Hornuf A., Souche J.L. (2000): Latest results of tests and field experience of Merlin. J. Plant Dis. Prot., Spec. Iss., XVII: 565-570.
    8. Lin C.H., Lerch R.N., Thurman E.M., Garrett H.E., George M.F. (2002): Determination of isoxaflutole (Balance) and its metabolites in water using solid phase extraction followed by high-performance liquid chromatography with ultraviolet or mass spectrometry. J. Agr. Food Chem., 50: 5816-5824. Go to original source... Go to PubMed...
    9. Luscombe B.M., Pallet K., Loubiere P., Millet J.C., Melgajero J., Vrabel T.E. (1995): RPA.201772: a novel herbicide for brodleaf and grass weed control in maize and sugar cane. Brighton Crop Prot. Conf. Weeds: 35-42.
    10. Mikulka J., Chodová D. (2000): Long-term study on the occurrence of weeds resistant to herbicides in the Czech Republic. J. Plant Dis. Prot., Spec. Iss., XVII: 373-376.
    11. Mikulka J., Chodová D. (2003): Germination and emergence of prickly lettuce (Lactuca serriola L.) and its susceptibility to herbicides. Plant Soil Environ., 49: 89-93. Go to original source...
    12. Mitra S., Bhowmik P.C., Xing B.S. (1999): Sorption of isoxaflutole by five different soils varying in physical and chemical properties. Pestic. Sci., 55: 935-942. Go to original source...
    13. Mitra S., Bhowmik P.C., Xing B.S. (2000): Sorption and desorption of the diketonitrile metabolite of isoxafiutole in soils. Environ. Pollut., 108: 183-190. Go to original source... Go to PubMed...
    14. Mitra S., Bhowmik P.C., Xing B.S. (2001): Physical and chemical properties of soil influence the sorption of the diketonitrile metabolite of RPA 201772. Weed Sci., 49: 423-430. Go to original source...
    15. Rouchaud J., Neus O., Eelen H., Bulcke R. (2002): Soil metabolism of isoxaflutole in corn. Arch. Environ. Con. Tox., 42: 280-285. Go to original source... Go to PubMed...

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