Variation in Pathogenicity of Seventeen Isolates of Meloidogyne incognita

Authors

  • C. J. Southards
  • M. F. Priest

Abstract

Pathogenicity of 17 isolates of Meloidogyne incognita collected in Tennessee was studied in the greenhouse on: Rutgers tomato, N.C. 95 tobacco, McNair 1032 cotton, Dixie Queen watermelon, California Wonder pepper and line M57-13N cowpea. Root-knot indices of the isolates on the different hosts differentiated six physiological races. The host reactions of each race are discussed. Key words: host-parasite relations, physiological races.

Downloads

Published

1973-01-15

Issue

Section

Articles