Crop Science Journal of Natural Resources and Life Sciences Education
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Crop Sci 16:265-267 (1976)
© 1976 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Kofoid, K. D.
Right arrow Articles by Kindler, S. D.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Kofoid, K. D.
Right arrow Articles by Kindler, S. D.
Agricola
Right arrow Articles by Kofoid, K. D.
Right arrow Articles by Kindler, S. D.

Evaluation of Greenbug Resistance in S2 Progenies of Grain Sorghum1

K. D. Kofoid, W. M. Ross, H. L. Hackerott, T. L. Harvey and S. D. Kindler2

The relationship of greenbug [Schizaphis graminum (Rondani)] resistance to various agronomic traits was evaluated by testing 100 greenbug.resistant and 100 greenbug- susceptible S2 progenies derived from the same grain sorghum [Sorghum bicolor (L.) Moench] random-mating population. Data collected in the absence of greenbug infestation indicated that no differences existed between the two populations for any of the traits studied.

The same entries tested in the presence of a greenbug infestation showed the mean of the resistant population to be significantly greater for height, grain yield, grain wt/plant, grain wt/head, and live leaves/plant; and significantly less for greenbug mummies/plant, dead leaves/ plant, and damaged leaves/plant. Thus greenbug resistance had no deleterious effects upon any of the agronomic traits studied; and in the presence of greenbug feeding, resistance enhanced the agronomic acceptability

Ample variability existed within each population for improvement by selection of any of the traits studied.

Key Words: Schizaphis graminum • Sorghum bicolor • Insect resistance

1 Contribution from the ARS, USDA; the Nebraska Agric. Exp. Stn.; and the Kansas Agric. Exp. Stn. Published as paper No. 3968, Journal Series, Neb. Agric. Exp. Stn.; contribution No. 295, Ft. Hays (Kan.) Branch Station; and No, 1139, Dep. of Entomology, Kan. Agric. Exp. Stn. The work reported herein was conducted under Neb. Agric. Exp. Stn. Project No. 12-009 and is a part of a thesis submitted by the senior author in partial fulfillment of requirements for the M.S. degree.

2 Research assistant, Dep. of Agronomy, Nebr. Agric. Exp. Stn., and Geneticist, ARS, USDA, Lincoln; agronomist and entomologist, Ft. Hays Branch Station, Kan. Agric. Exp. Stn., Hays; and research entomologist, ARS, USDA, Lincoln.

Received for publication May 30, 1975.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1976 by the Crop Science Society of America.