Yield Relationships and Population Dynamics of Meloidogyne spp. on Flue-cured Tobacco
Abstract
The complex nature of nematode-induced diseases of tobacco, the relationships between nematode levels and damage, the methods of determining these relationships, and the evolving nematode communities on tobacco in eastern North Carolina are described. Crop damage associated with these pathogens varies with nematode race and species, crop cultivar, microflora, and environmental conditions. Root-gall indices as well as initial and mid-season numbers of Meloidogyne spp, in soil are useful for estimating nematode-induced damage on tobacco. The increased occurrences of M. arenaria, M. javanica, and M. incognita races 2 and 4 on tobacco during the last 20 years in North Carolina are having an important economic impact on growers and pose new challenges to researchers. Key words: chemical soil treatment, damage threshold, Meloidogyne spp., Nicotiana tabacum, population dynamics, root-knot nematode, tobacco.Downloads
Published
Issue
Section
License
Copyright and Permissions
All material published by the Society of Nematologists (SON), except for papers prepared by United States and Canadian government employees, is copyrighted and protected under the U.S. copyright law. Under the Copyright Act of 1976, the term of copyright for materials registered by an organization is 75 years from the date first published. Before publishing any manuscript, SON requires that authors transfer full and complete ownership of any copyright to SON by signing a JON Page Charge/Copyright Form (.pdf). SON then registers the copyright. Subsequent use of published materials requires written permission from the SON and may be obtained by contacting the current Editor-in-Chief and state where and how the material will be used.
The author warrants that the article is an original work not published elsewhere in whole or in part, except in abstract form, and that the author has full power to make this grant. If portions of the article have been published previously, then the author warrants that permission has been obtained from the copyright holder and the author will submit a copy of the permission release with this copyright transfer form.
SON shall claim no proprietary right other than copyright. Authors and coauthors retain the right to revise, adapt, modify, or otherwise use all or part of the article in future works of the author(s), such as press releases, lectures, and reviews, provided that all such use is for the personal noncommercial benefit of the author(s). All patent rights are retained by the author(s).
