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Table 5 Host suitability of three cultivars of cowpea to root-knot nematode, Meloidogyne incognita infection

From: Differential responses of certain field pea and cowpea cultivars to root-knot nematode, Meloidogyne incognita for commercial release

Cowpea cultivarsNematode parameters Host resistance/susceptibility
No. of J2 in soil/potNo. of J2 in rootsNo. of gallsNo. of eggmassesFinal nematode populationBuild up (Pf/Pi1)Potential reproduction index (PRI)
Kafr El-Sheikh11190 a50 b42 a38 a11278a22.56100.0HS
Dokki7200 b53 b35 b16 b7269 b14.5464.5MS
3314560 c267 a31 b18 b4845 b9.6843.0MS
  1. Values are means of 5 replicates
  2. Values with the same letter(s) are not significantly different according to Duncan’s multiple range test at P ≤ 0.05. Potential reproduction index was calculated by dividing final population of a given cultivar on final population of the highest one multiplied by 100.Where 21–40.9%PRI = less susceptible (LS); 41–60.9%PRI = moderately susceptible (MS), and 51–100%PRI = highly susceptible (HS)
  3. Pf/Pi1 Pf= final population, Pi = initial population