Page Banner

United States Department of Agriculture

Agricultural Research Service

Research Project: ECOLOGICALLY BASED PEST MANAGEMENT IN MODERN CROPPING SYSTEMS

Location: North Central Agricultural Research Laboratory

Title: Soybean aphid resistance in soybean germplasm accessions of maturity group I

Authors
item Bhusal, Siddhi -
item Jiang, Guo-Liang -
item Hesler, Louis
item Orf, James -

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: April 23, 2014
Publication Date: May 7, 2014
Citation: Bhusal, S.J., Jiang, G., Hesler, L.S., Orf, J.H. 2014. Soybean aphid resistance in soybean germplasm accessions of maturity group I. Crop Science. doi:10.2135/cropsci2014.03.0205.

Interpretive Summary: The soybean aphid (SA) is a major pest of soybean in North America, particularly in the northern United States. Identification of aphid resistance in early maturing soybeans will facilitate development of aphid-resistant cultivars for this region. In this study, 330 soybean germplasm accessions from the early maturity group I, along with 11 resistant or susceptible checks, were evaluated against SA in greenhouse by caged (no-choice) and non-caged tests and in a field test. Accessions PI 189946, PI 153214, and PI 437075 had low numbers of SA in greenhouse tests that were similar to numbers on resistant checks, and accessions PI 378663, PI 603587A, PI 567250A, PI 603326, PI 603339A, and PI 603546A showed moderate aphid resistance. In the field, PI 567250A and PI 603339A performed similar to resistant checks, and PI 153214 and PI 437075 showed moderate aphid resistance. Across all three tests, PI 567250A and PI 603339A exhibited consistently low aphid infestation levels and thus may be useful in soybean breeding as new sources of soybean aphid resistance.

Technical Abstract: Soybean aphid (SA, Aphis glycines Matsumura) is a major pest of soybean [Glycine max (L.) Merr.] in North America, particularly the northern United States. Identification of soybean aphid resistance in early maturing soybeans will facilitate development of aphid-resistant cultivars for this region. In this study, 330 soybean germplasm accessions from maturity group (MG) I, along with 11 resistant or susceptible checks, were evaluated against SA in greenhouse by caged (no-choice) and non-caged tests. Germplasm accessions that showed resistance in these tests were then tested in the field under natural infestations supplemented by artificial inoculation. In the greenhouse tests, accessions PI 189946, PI 153214, and PI 437075 exhibited low SA levels similar to those on resistant checks, and six accessions (PI 378663, PI 603587A, PI 567250A, PI 603326, PI 603339A, and PI 603546A) showed moderate aphid resistance. In the field, PI 567250A and PI 603339A performed similar to resistant checks, and PI 153214 and PI 437075 showed moderate aphid resistance. Across all three tests, PI 567250A and PI 603339A exhibited consistently low levels of aphid infestation and thus may be useful in soybean breeding as newly identified sources of soybean aphid resistance.

Last Modified: 9/10/2014
Footer Content Back to Top of Page