Relationship Between Initial Population Density and Damage Caused by Meloidogyne incognita Populations from Ethiopia

Abstract

Greenhouse experiments were conducted to determine: the damage potential (T) of Meloidogyne incognita on susceptible t ^ato, resistant tomato and maize. Plants were inoculated with initial inoculum level (pi) of 1,2,4,8 and 16-juveniles/ cm3 soil and placed
in greenhouse benches in a completely randomized block design. The Seinhorst model very well fitted for susceptible tomato due to M. incognita populations (rz= 0.87 and T= 1.60 juveniles/cm3 of soil) and poorly fitted for both resistant tomato (r2=0.6) and maize
(r2=0.3). Sever root galling was also observed on susceptible and resistant tomato. Number of egg masses and number of eggs were also correlated positively. Maize didn’t show sever root galling