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ARS Home » Southeast Area » Charleston, South Carolina » Vegetable Research » Research » Publications at this Location » Publication #289565
Title: Evaluation of dry-fleshed sweetpotato genotypes for resistance to soil insect pests, 2011

Author
item Jackson, D
item Harrison Jr, Howard

Submitted to: Arthropod Management Tests
Publication Type: Other
Publication Acceptance Date: 1/10/2013
Publication Date: 10/10/2013
Publication URL: http://www.entsoc.org/pubs/index.html
Citation: Jackson, D.M., Harrison Jr, H.F. 2013. Evaluation of dry-fleshed sweetpotato genotypes for resistance to soil insect pests, 2011. Arthropod Management Tests. Volume 38, Report No. M-4. Online Journal at http://www.entsoc.org/pubs/index.html.

Interpretive Summary:

Technical Abstract: Two insect susceptible check cultivars (‘Beauregard” and ‘SC1149 19’), an insect resistant check cultivar (‘Ruddy’), 23 advanced dry-fleshed genotypes, and five dry-fleshed cultivars (‘Liberty’, ‘NC Japanese’, ‘Okinawa 100’, ‘Sumor’, and ‘Xushu-18’) were evaluated for insect resistance in replicated field trials at Charleston, SC, 2011. All dry-fleshed entries except 08-009, 08-384, ‘NC Japanese’, ‘Okinawa 100’, W-364 and ‘Xushu-18’ had significantly less overall insect injury from insects (i.e., higher percentage of undamaged roots) and a significantly lower WDS index than did the susceptible controls (‘Beauregard’ and ‘SC1149-19’). All dry-fleshed entries except 08-365, ‘Liberty’, and ‘Xushu-18’ had significantly less injury by flea beetles than did the susceptible controls. Overall, 13 genotypes had overall insect injury levels that were not significantly different from the highly resistant check, ‘Ruddy’.