Effect of Certain Nematodes on the Growth of Pinus edulis and Juniperus monosperma seedlings
Abstract
Pinus edulis and Juniperus monosperma seedlings were inoculated separately with each of seven nematode species, and grown for 9 months at 20 C soil temperature. Hoplolaimus galeatus, Rotylenchus pumilis, Tylenchus exiguus, and Xiphinema americanum parasitized P. edulis seedlings, but did not significantly reduce seedling growth. Pinus edulis was not a host for Tylenchorhynchus cylindricus, Aphelenchoides cibolensis, or Criconemoides humilis Xiphinema americanum and R. pumilis parasitized J. monosperma seedlings, and reduced their root weights and root collar diameters. Juniperus monosperma was not a host for A. cibolensis and T. exiguus, and parasitism of this tree species by T. cylindricus and C. humilis remains uncertain. Key words: forest trees, tree seedlings, pine, juniper.Downloads
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