Soybean Response to Ethylene Dibromide in a Soil Infested with Meloidogyne arenaria and Heterodera glycines
AbstractOne susceptible and six nematode-resistant soybean cultivars were evaluated in the field for their effects on seed yield, nematode populations, and response to the fumigant nematicide, ethylene dibromide. The soil was a loamy sand infested with Meloidogyne arenaria and Heterodera glycines. Cultivars significantly affected yield and numbers of H. glycines but did not affect M. arenaria numbers. Fumigation increased yield and reduced M. arenaria numbers but did not affect numbers of H. glycines. The interaction between cultivars and fumigation was significant for yield but not for nematode numbers. Key words: Glycine max, Heterodera glycines, host-plant resistance, Meloidogyne arnaria, root-knot nematode, soybean, soybean cyst nematode.
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