C. K. Bonsi
Tuskegee University
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Advances in Space Research | 1989
Walter A. Hill; P.A. Loretan; C. K. Bonsi; C. E. Morris; J. Y. Lu; Cyriacus R. Ogbuehi
A number of studies have selected the sweet potato as a potentially important crop for CELSS. Most hydroponic studies of sweet potatoes have been short term (<80 days). Full term (90 to 150 days) studies of sweet potatoes in hydroponic systems were needed to understand the physiology of storage root enlargement and to evaluate sweet potato production potential for CELSS. Early and late maturing sweet potato varieties were crown in hydroponic systems of different types--static with periodic replacement, flowing with and without recirculation, aggregate, and non-aggregate. In a flowing system with recirculation designed at Tuskegee University using the nutrient film technique (NFT), storage root yields as high as 1790 g were produced with an edible growth rate of up to 66 g m-2 d-1 and a harvest index as high as 89% under greenhouse conditions. Preliminary experiments indicated high yields can be obtained in controlled environmental chambers. Significant cultivar differences were found in all systems studied. Nutritive composition of storage roots and foliage were similar to field-grown plants. The results indicate great potential for sweet potato in CELSS.
Journal of Economic Entomology | 2007
Abraham Addo-Bediako; Baharnu Tameru; Louis E. N. Jackai; C. K. Bonsi
Abstract We assessed the risk associated with introduction of sweet potato weevil, Cylas formicarius elegantulus (Summers) (Coleoptera: Brentidae), from infested areas to noninfested areas via shipment of sweet potato, Ipomoea batatas (L.), roots within the southern United States. Our study quantifies the effectiveness of risk mitigation procedures of sweet potatoes before shipment in relation to introduction of the weevil. The risk assessment relied on literature and expert information to determine appropriate parameters. Using a computational model, Monte Carlo simulations were conducted to estimate the likelihood of introduction of sweet potato weevil. Risk management options were incorporated and the risk analyses were performed to assess how the risk could be reduced. The study found the risk of introduction of the weevil for both domestic shipment and imports of sweet potatoes into new areas within the southern United States to be low. Sensitivity analysis was performed to assess model stability and the impact of parameter changes. Based on the sensitivity analysis, the most critical input was the postharvest mitigation, followed by the number of weevils per ton of sweet potatoes. We concluded that maintaining mitigations with monitoring in conjunction with public education to stop illegal transport of sweet potatoes and alternate hosts would significantly reduce the risk of introduction.
Archive | 1989
C. E. Morris; P.A. Loretan; C. K. Bonsi; Walter A. Hill
Hortscience | 2000
K. Stanciel; Desmond G. Mortley; Douglas R. Hileman; P.A. Loretan; C. K. Bonsi; Walter A. Hill
Journal of Agricultural and Food Chemistry | 1997
Wen-Hsin Wu; J. Y. Lu; Alecia R. Jones; Desmond G. Mortley; P.A. Loretan; C. K. Bonsi; Walter A. Hill
Crop Science | 1999
T. Rowell; Desmond G. Mortley; P.A. Loretan; C. K. Bonsi; Walter A. Hill
Hortscience | 1991
Desmond G. Mortley; P.A. Loretan; C. K. Bonsi; Walter A. Hill; C. E. Morris
Hortscience | 1994
Desmond G. Mortley; C. K. Bonsi; P.A. Loretan; Walter A. Hill; C. E. Morris
Journal of the American Society for Horticultural Science | 2008
Desmond G. Mortley; C. K. Bonsi; Walter A. Hill; C. E. Morris; Carol S. Williams; Ceyla F. Davis; John W. Williams; Lanfang H. Levine; Barbara V. Petersen; Raymond M. Wheeler
Crop Science | 1993
Desmond G. Mortley; C. K. Bonsi; Walter A. Hill; P.A. Loretan; C. E. Morris
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North Carolina Agricultural and Technical State University
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