Development of root-noot nematode, Meloidogyne incognita and morphometrics as influenced by certain tomato cultivars

Fourteen different tomato cultivars belonging to four different species were inoculated with single egg mass population of Meloidogyne incognita in order to determine the extent of morphometric and allometric variations. The different cultivars influenced females dimensions to a varied degree. Smaller females were produced on Lycopersicon esculentum cv NMR-1., cv Coldset and L. Iycopersicoides which were moderately resistant to nematode attack. Moderate size of females on cv AC-142, cv AC-238, cv 5–12, cv Punjab Chhuhara, cv Punjab Kesri, L. pimpinellifolium and large females on L. esculentum cv sioux, cv Co-1 and Co-2 which were highly susceptible to nematode attack.