Reniform Nematode Reproduction and Soybean Yield of Four Soybean Cultivars in Arkansas
Abstract
A field infested with Rotylenchulus reniformis in the Arkansas River valley near Pine Bluff, Jefferson County, Arkansas, was used to test the effects of R. reniformis on four commonly grown soybean cultivars (Lloyd, Tracy-M, Bedford, Forrest). At planting, the plots averaged 950 vermiform reniform nematodes per 100 cm³ of soil. At harvest, the average R. reniformis reproductive index (final/initial population density) was 2.62 for Tracy-M, 2.50 for Lloyd, 1.72 for Bedford, and 0.81 for Forrest. Yields were highest for the cultivar Lloyd, followed by Bedford, Forrest, and Tracy-M. Initial population densities of R. reniformis were positively correlated (P = 0.05) with final population densities when all cultivars were calculated together. Neither initial nor final densities were correlated with yield. Key words: Glycine max, Heterodera glycines, nematode, reniform nematode, resistance, Rotylenchulus reniformis, soybean, yield.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).
