title: Suppression of Root-knot Nematode Populations with Selected Rapeseed Cultivars as Green Manure.
abstract: Meloidogyne chitwoodi races 1 and 2 and M. hapla reproduced on 12 cultivars of Brassica napus and two cultivars of B. campestris. The mean reproductive factors (Rf), Rf = Pf at 55 days / 5,000, for the three nematodes were 8.3, 2.2, and 14.3, respectively. All three nematodes reproduced more efficiently (P < 0.05) on B. campestris than on B. napus. Amending M. chitwoodi-infested soil in plastic bags with chopped shoots of Jupiter rapeseed reduced the nematode population more (P < 0.05) than amendment with wheat shoots. Incorporating Jupiter shoots to soil heavily infested with M. chitwoodi in microplots reduced the nematode population more (P < 0.05) than fallow or corn shoot treatments. The greatest reduction in nematode population density was attained by cropping rapeseed for 2 months and incorporating it into the soil as a green manure.
authors.forename: H
authors.initials: H
authors.lastname: Mojtahedi
authors.forename: G S
authors.initials: GS
authors.lastname: Santo
authors.forename: A N
authors.initials: AN
authors.lastname: Hang
authors.forename: J H
authors.initials: JH
authors.lastname: Wilson