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ARS Home » Plains Area » Brookings, South Dakota » Integrated Cropping Systems Research » Research » Publications at this Location » Publication #230001
Title: Resistance to Soybean Aphid Among Soybean Lines, Growth-chamber Tests, 2006 Through 2008

Author
item Hesler, Louis
item Dashiell, Kenton

Submitted to: Arthropod Management Tests
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/18/2009
Publication Date: 11/17/2009
Citation: Hesler, L.S., Dashiell, K.E. 2009. Resistance to Soybean Aphid Among Soybean Lines, Growth-chamber Tests, 2006 Through 2008. Arthro. Mgmt. Tests 34:M3.

Interpretive Summary: We tested for resistance to the soybean aphid (SBA) among several soybean lines, and rated lines as resistant or susceptible in seven tests. The ratings of plants with respect to SBA infestation differed among lines in all tests. The lines Kosamame, Bhart, and Bragg each had a proportion of resistant plants that was comparable to that of the resistant check and greater than that of their respective susceptible check. All other test lines had no resistant plants or a low proportion of resistant plants that did not differ from that of the susceptible checks. Future studies are needed to characterize the resistance mechanisms and incorporate the resistance genes into contemporary soybean lines.

Technical Abstract: We tested for resistance to the soybean aphid (SBA, Aphis glycines) among several soybean lines, and rated lines as resistant or susceptible in seven tests. The ratings of plants with respect to SBA infestation differed among lines in all tests. Kosamame (PI 171451, test II), Bhart (PI 165989, test III), and Bragg (PI 548660, test VI) each had a proportion of resistant plants that was comparable to that of the resistant check and greater than that of their respective susceptible check. All other test lines had no resistant plants or a low proportion of resistant plants that did not differ from that of the susceptible checks. Future studies are needed to characterize the resistance mechanisms and incorporate the resistance genes into contemporary soybean lines.