Yield of four generations of virus-tested sweetpotato
Document Type
Article
Publication Date
1-1-2004
Abstract
The yield of three generations of virus-tested plants of 'Beauregard' sweetpotato (Ipomoea batatas) was assessed in Louisiana over a 4-year period in 15 yield trials. Treatments included virus-infected foundation 'Beauregard', virus-tested 'Beauregard' mericlone, B-63 [generation 1 (G-1)], and three generations of B-63 (G-2, G-3 and G-4). Generations refer to the number of continuous years virus-tested plants are grown in the field. Use of G-2 virus-tested 'Beauregard' transplants increased yields of U.S. no. 1 grade roots by 16% in comparison with virus-infected, foundation 'Beauregard'. Total marketable yield was also higher (11%) using B-63 G-2 transplants in comparison to virus-infected, foundation 'Beauregard'. Use of B-63 (G-1), G-3 and G-4 generation transplants did not increase yields in any grade in comparison to virus-infected, foundation 'Beauregard' by planting plots amidst virus-infested sweetpotato fields. Generation one B-63 transplants were greenhouse grown and often appeared less robust after planting. Yet we were unable to show significant yield differences between greenhouse derived B-63 (G-1) and field-grown B-63 (G-1) in separate tests; other factors may be involved.
Publication Source (Journal or Book title)
HortTechnology
First Page
320
Last Page
322
Recommended Citation
La Bonte, D., Clark, C., Villordon, A., Cannon, J., Hoy, M., Sistrunk, M., Freeman, E., & Roberts, G. (2004). Yield of four generations of virus-tested sweetpotato. HortTechnology, 14 (3), 320-322. https://doi.org/10.21273/horttech.14.3.0320