Table 3.

Effect of soil sterilization or not- sterilization of sites M10.23 and M10.55 on Meloidogyne densities on roots, reproduction factor, galling index, percentage of egg parasitism and fresh root weight of tomato cv. Durinta inoculated with 3000 juveniles per pot after completion of one nematode generation.

Site	Soil mixturea	Fresh root weight (g)	N° of eggs (× 103)/plantb	Reproduction factorc	Galling indexd	Parasitized eggs (%)
M10.23	Sterilized	16.3±1.3*	41.2±13.4*	13.8±4.5*	4.1±0.2*	0
	Non-sterilized	6.2±0.5	11.0±3.0	3.6±1.0	3.4±0.2	24.8±1.7
M10.55	Sterilized	14.2±1.5*	40.7±8.8*	12.6±2.9*	4.3±0.2	0
	Non-sterilized	7.8±0.6	15.7±2.8	4.2±0.7	3.8±0.1	70.9±2.0

Data are mean ± standard error of 20 replications. Data within the same column and site followed by

^*indicates a significant difference between soil treatment at P < 0.05 according to the Student's t -test.

^aSterilized soil mixture, 50% sterilized soil + 50% sterilized sand; Non-sterilized soil mixture, 50% non-sterilized soil + 50% sterilized sand.

^bParasitized eggs excluded.

^cNumber of non-parasitized eggs per plant/initial population density.

^dGalling index on a scale from 0 to 10, where 0 = complete and healthy root system and 10 = plants and roots dead (Zeck, 1971).