Pathogenicity of Four Species of Meloidogyne on Three Varieties of Olive Trees
Abstract
'Ascolano' and 'Sevillano' olive trees, Olea europaea L., were highly susceptible to Meloidogyne javanica (Trueb) Chitwood, and growth of their tops was decreased greatly in tests in a glasshouse. Roots of 'Manzanillo' olive trees were galled moderately by M. javanica, and their tops weighed 6% less than those of noninoculated trees. 'Manzanillo' olive is considered highly tolerant to M. javanica. 'Ascolano' and 'Manzanillo' olive trees were highly susceptible to M. incognita (Kofoid & White) Chitwood. Their roots were galled moderately to severely, and growth of their tops were decreased between 13% and 44%. 'Ascolano' and 'Manzanillo' olive trees were considered to be highly resistant to M. arenaria (Neal) Chitwood and M. hapla Chitwood since no galls or mature females were found on their roots three and one-half months after inoculation.Downloads
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