Response of some tomato cultivars against root-knot nematode, Meloidogyne incognita (Kofoid & White) Chitwood.

Meloidogyne incognita(Kofoid & White) Chitwood was isolated as most predominant root -knot nematode from soil and theinfected root samples of stunted tomato plants showedchlorosis.Rootand shootgrowth of five tomato veritieswas significant lyreduced when inoculated with second stage infective larvae of M. incognitaascompared to un-inoculated tomato varieties. M. incognitasignificantly reduced root length in tomato variety Anmol foll owed by Gola France and Sunehra as compared to un -inoculated tomato var iety Roma Holland and Roma v.f. Root weight was also decreased in Sunehra followed by Roma Holland and Tomato Anmol than that of un -inoculated tomato variety Roma v.f., followed by Roma Holland. Shoot length was significantly increased in tomato variety Sunehra followed by Roma v.f. and Roma Holland and that was decreased in tomato Anmol as compared to un -inoculated tomato variety Roma Holland, Sunehra and Roma v.f. respectively. Shoot w eight was significantly reduced in tomato variety Anmol inoculated with M. incognitaas compared to Gola France, Roma v.f., and Sunehra than that of un -inoculated tomato varieties Roma v.f., Roma Holland and Anmol, respectively. The development of root gal ls and eggsformation were increased in all tomato varieties inoculated withM. incognita.Population of larvae and egg -laying females were also greater in all inocul ated tomato varieties.Variationin multiplicatio n of nematode in certain tomato was obse rved amongvarieties.The number of root-galls was significantly increased in tomato variety Roma v.f. followed by Roma Holland as compared to Gola France and Sunehra and that was decreased in tomato variety Anmol. The greater number of egg masses per root system was