Influence of the ryegrass endophyte (Neotyphodium lolii) in a cool moist environment IV. Plant parasitic nematodes

摘要

The influence of the ryegrass endophyte on plant#x2010;parasitic nematodes in a cool moist environment in New Zealand was evaluated in a pot and a grazing experiment. Nematodes of the genusParatylenchusmade up 99 of the fraction of plant#x2010;parasitic nematodes and their numbers were higher (P 0.05) on endophyte#x2010;free plants in the pot experiment and in fields containing mono#x2010;cultures of endophyte#x2010;free ryegrass. Nui endophyte#x2010;free plants and pastures had higher dry matter yields than endophyte#x2010;infected plants and pastures. The effect of endophyte strains on nematodes was inconclusive.