PLANT PARASITIC NEMATODES OF Kochia scoparia trichophilla AND PATHOGENICITY OF Rotylenchulus reniformis Linford AND Oliveira

K N PATHAK, H P MISHRA, PRANAY KUMAR, K L OJHA

Abstract


Association of four di fferent plant. parasitic nematodes viz., Rotylenchulus reniformis, Hoplolaimus indicus, Tylenchorhynchus nudus and T. mashoodi with Kochia_scoparia trichophila, an ornamental plants, were recorded in North Bihar. The population of R. reniformis was predominant both in soil (66.38%) and root (67.72%) samples, while population of other nematodes varied from 1.60-29.29%. Damage threshold population of reniform nematode on Kochia was found to be 100 nematodes/plant/kg soil. The rate of egg liberation and total nematode multiplication was much higher with initial inoculum of 10 nematodes and decreased with increasing levels of inoculum.


Keywords


Kochia scoparia;Nematode association;Pathogenicity;Rotylenchulus reniformis

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