Begomoviruses vectored by the sweetpotato whitefly ( Bemisia tabaci ) are a major threat to tomato ( Solanum lycopersicum ) production in many regions around the world. Of the many begomoviruses, the strains that cause Tomato yellow leaf curl virus
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Samuel F. Hutton, Yuanfu Ji, and John W. Scott
Zachary N. Hoppenstedt, Jason J. Griffin, Eleni D. Pliakoni, and Cary L. Rivard
propagating slips are routinely importing costly tissue-cultured and virus-tested derived seed stock ( La Bonte et al., 2000 ), production systems that promote high yield and consistency would be ideal for sweetpotato slip production. Nevertheless, the authors
Don R. La Bonte, Christopher A. Clark, Tara P. Smith, Arthur Q. Villordon, and C. Scott Stoddard
‘Burgundy’ sweetpotato [ Ipomoea batatas (L.) Lam.] was developed by the Louisiana Agricultural Experiment Station to provide an orange fleshed, red-skinned cultivar with superior storage root shape, high sucrose content, disease resistance, and
Jollanda Effendy, Don R. La Bonte, and Niranjan Baisakh
Sweetpotato is a genetically complex clonal crop with incompatibility that presents a bottleneck in backcrossing desirable traits into otherwise superior cultivars. Breeding programs thus rely on open-pollinated, mass selection techniques to improve
Yuanfu Ji, Jay W. Scott, David J. Schuster, and Douglas P. Maxwell
Tomato-infecting begomoviruses, including monopartite tomato yellow leaf curl virus (TYLCV) and numerous bipartite viruses including tomato mottle virus (ToMoV), are transmitted by the sweetpotato whitefly ( Bemisia tabaci ), the B biotype of
John W. Scott, Samuel F. Hutton, and Joshua H. Freeman
indicates their resistance may be effective against a wide range of Begomoviruses . Table 3. Tomato yellow leaf curl virus (TYLCV) and Tomato mottle virus (ToMoV) disease severity z for tomato genotype inoculated at the seedling stage at the Gulf Coast
Danielle D. Treadwell, Nancy G. Creamer, Greg D. Hoyt, and Jonathan R. Schultheis
note that consideration was not given to roots graded unmarketable as a result of insect and disease damage. The incidence of root damage by soil-dwelling insects is a major problem in commercial sweetpotato production areas. Only recently have
Karen R. Harris, W. Patrick Wechter, and Amnon Levi
viruses, fungi, oomycetes, bacteria, and insects. The most destructive virus diseases in watermelon are caused by papaya ringspot virus, watermelon mosaic virus, and zucchini yellow mosaic virus ( Strange et al., 2002 ). The most devastating fungal and
Arthur Villordon, Don LaBonte, and Julio Solis
-based system underestimated NAR, PR, and SR counts relative to the destructive sampling-based total counts. Previous work on quantifying sweetpotato transplant response using destructive sampling-based AR counts included such experimental treatments as virus
Samuel F. Hutton and John W. Scott
sweetpotato whitefly ( Bemisia tabaci ), the strains that cause Tomato yellow leaf curl virus (TYLCV) are the most widespread and well known. Begomovirus resistance in Fla. 7907C is conferred by the Ty-1 gene, which was advanced using marker