Post-Infectional Development of Meloidogyne incognita on Susceptible and Resistant Soybean Genotypes

Authors

  • R. M. Moura
  • E. L. Davis
  • B. M. Luzzi
  • H. R. Boerma
  • R. S. Hussey

Keywords:

Development, Fecundity, Glycine max, Meloidogyne incognita, Penetration, Resistance, Root-Knot, Soybean

Abstract

Post-infectional development, reproduction, and fecundity of Meloidogyne incognita on three soybean genotypes were examined under greenhouse conditions. The genotypes Bossier, Forrest, and PI 96354 were susceptible, partially resistant, and highly resistant, respectively, to M. incognita. Most second-stage juveniles in roots of Forrest and PI 96354 had emigrated from roots of these genotypes by 10 days after inoculation. Nematodes parasitizing PI 96354 had the slowest developmental rate and produced 99% fewer eggs per egg mass than females on the other two genotypes. Total eggs produced on Forrest was intermediate between egg production on Bossier and PI 96354.

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Published

1993-06-01

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Section

Articles