Community structure of plant parasitic nematodes in Champawat District of Uttaranchal, India.
Rathour K. S., Jola Pandey, Sudershan Ganguly
Author Affiliation: Division of Nematology, I.A.R.I., New Delhi - 110 012, India.
Indian Journal of Nematology 36 : 89-93
Abstract : A survey was conducted in Champawat, Uttaranchal, India, to record the plant parasitic nematodes associated with some vegetable, cereal, oil seed and fruit crops. Analysis of nematode communities revealed the presence of several plant parasitic nematodes, of which the predominant ones were: Meloidogyne spp. (M. incognita and M. javanica) associated with chilli, okra, pawpa and soyabean; Quinisulcius acti with maize, chilli, okra and pumpkin; Rotylenchulus reniformis with castor, papaya and okra; Helicotylenchus spp. (H. dihystera and H. pseudorobustus) with pumpkin, okra, pawpaw and soyabean; Hemicriconemoides mangiferae and Paratylenchus curvitatus with mango and litchi; Trichodorus pakistanensis with litchi, soyabean and pumpkin and Hoplolaimus seinhorsti [Basirolaimus seinhorsti] and Tylenchorhynchus indicus were found to be associated with okra and mango, respectively. M. incognita and M. javanica were found to have highest importance value (53.2), followed by R. reniformis (47.24) and H. seinhorsti (44.08), and these were adjudged to be the top ranking plant parasitic nematodes in this district. This is the first attempt of a nematode-based survey in Champawat, Uttaranchal, India.