Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-04T13:34:04.486Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Viruses (SPVD) on Growth and Yield of Sweet Potato†

Published online by Cambridge University Press:  03 October 2008

S. K. Hahn
S. K. Hahn
Affiliation:
International Institute of Tropical Agriculture (IITA), PMB 5320, Ibadan, Nigeria
Get access Rights & Permissions [Opens in a new window]

Summary

Sweet potato (Ipomoea batatas L.) virus disease (SPVD) causes severe disease symptoms of various combinations of leaf strapping, vein-clearing, puckering and stunting. The disease is widespread, especially in Africa, and yield is adversely affected, though there are no figures to quantify this effect nor is it known how yield is affected. Loss of tuberous root yield due to SPVD was studied in sweet potato showing symptoms of the disease. Slips were obtained from plants with and without symptoms and two yield trials in 2 years were conducted by planting them alternately in rows. Yield of fresh tubers was reduced by 78% in plants showing SPVD symptoms but the reduced chlorophyll level of diseased leaves did not appear to affect yield.

Type
Research Article
Information
Experimental Agriculture , Volume 15 , Issue 3 , July 1979 , pp. 253 - 256
Copyright
Copyright © Cambridge University Press 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bruinsma, J. (1961). Biochem. Biophys. Acta. 52, 576.CrossRefGoogle Scholar
Clerk, G. C. (1960). Plant Dis. Rep. 44, 931.Google Scholar
Hirst, J. M., Hide, G. A. & Griffith, R. L. (1970). J. Roy. Ag. Soc., of England 131, 87.Google Scholar
James, C. (1974). A. Rev. Phytopath. 12, 27.CrossRefGoogle Scholar
Kantack, E. J. & Martin, W. J. (1958). Phytopath. 48, 521.Google Scholar
Loebenstein, G. & Harpaz, I. (1960). Phytopath. 50, 100.Google Scholar
Robertson, D. G. (1964). Plant Dis. Rep. 48, 887.Google Scholar
Schaefers, G. A. & Terry, E. R. (1976). Phytopath. 66, 642.CrossRefGoogle Scholar
Shaller, C. W. (1951). Agron. J. 43, 183.CrossRefGoogle Scholar
Sheffield, F. M. L. (1957). Phytopath. 47, 582.Google Scholar
Slinkard, A. E. & Elliott, F. C. (1954). Agron. J. 46, 439.CrossRefGoogle Scholar