Host Suitability of Grain Sorghum Cultivars to Meloidogyne spp

Authors

  • B. A. Fortnum
  • R. E. Currin III

Abstract

Grain sorghum cultivars (Funk G-499GBR, Funk G-611, Funk G-522A, Funk G-522DR, Coker 7723, Coker 7675, Coker 7623, Pioneer B815, Pioneer 8222, Pioneer 8272) were evaluated in the greenhouse for resistance to populations of Meloidogyne incognita race 3, M. arenaria race 2, and M, javanica from South Carolina, and M. arenaria race 1 from Georgia. All the sorghum cultivars were poor hosts or nonhosts of Meloidogsne spp. with fewer than 1 or 2 egg masses per root system in all cultivar x nematode combinations. Sorghum (Coker 7723) planted in a field infested with M. incognita race 3 and M. arenaria race 2 was not galled; however, galling and egg masses were observed on tobacco (Coker 319). Populations of second-stage juveniles at harvest were 2,865 and 72/500 cm³ soil for the tobacco and sorghum plots, respectively. Sorghum was a poor host of Meloidogyne spp. and may be useful as a rotation crop to reduce populations of root-knot nematodes. Key words: host suitability, Meloidogyne arenaria, M. incognita, M. javanica, root-knot nematode, sorghum, Sorghum bicolor.

Downloads

Published

1988-10-15

Issue

Vol. 20, No. 4S (October 1988)

Section

Articles

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).