Screening Subterranean Clover (Trifolium spp.) Germplasm for Resistance to Meloidogyne species

Authors

  • C. N. Kouame
  • D. D. Baltensperger
  • G. M. Prine
  • R. A. Dunn

Abstract

This study was conducted to identify lines of subterranean clover (Trifolium spp.) with resistance to Meloidogyne arenaria (Neal, 1989) Chitwood, 1949, race 1; M. incognita (Kofoid and White, 1919) Chitwood, 1949, race 3; and M. javanica (Treub, 1885) Chitwood, 1949. A collection of 134 subterranean clover lines was evaluated and all had intermediate to high susceptibility. Root galling was negatively correlated with both seed and dry matter yields. Soil fumigation significantly reduced the nematode population in the field. Results indicate there is limited genetic resistance to root-knot nematodes among subterranean clover lines. Alternative sources of variation for this trait should be investigated. Key words: egg mass, legume, Meloidogyne arenaria, M. incognita, M. javanica, root galling, root-knot nematode, soil fumigation, subterranean clover, susceptibility, Trifolium spp.

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Published

1989-07-15

Issue

Vol. 21, No. 3 (July 1989)

Section

Articles

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