Reproduction of Plant-parasitic Nematodes on Winter Rapeseed (Brassica napus ssp. oleifera)

E. C. Bernard, M. E. Montgomery-Dee

Abstract


The reproduction of isolates of five plant-parasitic nematode species on the winter rapeseed cultivars Bridger, Gorzanski, H-47, Lindora, and Viking was evaluated. Each cultivar was a good host for Helicotylenchus pseudorobustus, Meloidogyne hapla, and M. incognita, All rapeseed cultivars were poor hosts for Pratylenchus scribneri, in comparison with a susceptible reference host. Heterodera glycines females rarely developed on any cultivar, but low numbers of juveniles invaded roots and males occasionally reached maturity. Key words: Brassica napus, canola, Helicotylenchus pseudorobustus, Heterodera glycines, host range, Metoidogyne hapla, Meloidogyne incognita, nematode, population dynamics, Pratylenchus scribneri, rapeseed, susceptibility, winter annual.

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