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You searched for: Subject germplasm Remove constraint Subject: germplasm Subject term cultivars Remove constraint Subject term: cultivars Subject term Cylas formicarius elegantulus Remove constraint Subject term: Cylas formicarius elegantulus
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1. Identification of simple sequence repeat markers for sweetpotato weevil resistance

Author:
Benard Yada; Agnes Alajo; Gorrettie N. Ssemakula; Gina Brown-Guedira; Milton Anyanga Otema; Philip C. Stevenson; Robert O. M. Mwanga; G. Craig Yencho
Source:
Euphytica 2017 v.213 no.6 pp. 129
ISSN:
0014-2336
Subject:
Curculionidae; Cylas formicarius elegantulus; Ipomoea batatas; coumaric acids; cultivars; esters; genotype; genotyping; germplasm; heritability; landraces; loci; microsatellite repeats; plant breeding; progeny; sweet potatoes; transgressive segregation
Abstract:
... The development of sweetpotato [Ipomoea batatas (L.) Lam] germplasm with resistance to sweetpotato weevil (SPW) requires an understanding of the biochemical and genetic mechanisms of resistance to optimize crop resistance. The African sweetpotato landrace, ‘New Kawogo’, was reported to be moderately resistant to two species of SPW, Cylas puncticollis and Cylas brunneus. Resistance has been associa ...
DOI:
10.1007/s10681-017-1917-1

2. Insect Resistance in Traditional and Heirloom Sweetpotato Varieties

Author:
Jackson D. Michael; Harrison Howard F.
Source:
Journal of economic entomology 2013 v.106 no.3 pp. 1456-1462
ISSN:
0022-0493
Subject:
Agricultural Research Service; Chaetocnema confinis; Cylas formicarius elegantulus; Diabrotica; Elateridae; Phyllophaga; Systena; beetle infestations; breeding programs; cultivars; field experimentation; genotype; germplasm; insect larvae; insect pests; insect resistance; roots; soil insects; sweet potatoes; South Carolina
Abstract:
... Fifty-nine sweetpotato cultivars, including 16 heirlooms, 11 near-heirlooms (developed in the 1960s and 1970s), 19 cultivars from the 1980s, and 13 modern varieties (since 1990), were evaluated for resistance to soil insects in field experiments during 2010–2011 at the U.S. Department of Agriculture-Agriculture Research Service, U.S. Vegetable Laboratory (USDA-ARS, USVL), Charleston, SC. These exp ...

3. Sweetpotato weevil (Cylas spp.) resistance in African sweetpotato germplasm

Author:
Harriet Muyinza; Herbert L. Talwana; Robert O.M. Mwanga; Philip C. Stevenson
Source:
International journal of pest management 2012 v.58 no.1 pp. 73-81
ISSN:
1366-5863
Subject:
Curculionidae; Cylas formicarius elegantulus; cracking; cultivars; field experimentation; germplasm; insect pests; laboratory experimentation; landraces; plant breeding; progeny; resistance mechanisms; rooting; roots; screening; soil; sweet potatoes; Africa
Abstract:
... Host-plant resistance could be a useful tool for managing the weevils Cylas puncticollis and C. brunneus, which are major insect pests of sweetpotato in Africa. There is currently little information on existing resistance mechanisms against Cylas spp. in African cultivars, except where lower levels of weevil damage were attributed to escape due to deep rooting and reduced soil cracking, limiting t ...
DOI:
10.1080/09670874.2012.655701