Identification scheme for heterodera species in India

A compendium of all the cyst forming species recorded from India has been given. Identification keys based on larvae, cysts alone, hosts alone as also taking all the parameters together have been formulated for the six tested species as well as for all the other species recorded from the country. A proposal has been put forward to modify Mulvey's groups with addition of Group VI and re-definitions of Groups IV and V. Heterodera chaubattia is being considered as species inquirende because of inadequate description and non-availability of types.