The Viroids pp 299-313 | Cite as

Avocado Sunblotch

  • Paul R. Desjardins
Chapter
Part of the The Viruses book series (VIRS)

Abstract

The sunblotch disease of avocado has been known for over 50 years. It was first described as a physiological (Coit, 1928) or genetic (Home, 1929) disorder. Shortly thereafter, Horne and Parker (1931) transmitted the causal agent from diseased scions to healthy rootstocks. By 1941, graft transmissibility of the agent was well established (Horne et al., 1941). Hence, the causal agent was considered to be a virus, and like some of the other plant viroids was studied as such for many years (Whitsell, 1952; Wallace, 1958; Wallace and Drake, 1962; Desjardins et al., 1980).

Keywords

Seed Transmission Pollen Transmission Symptomless Carrier Growth Flush Paramural Body 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Paul R. Desjardins
    • 1
  1. 1.Department of Plant PathologyUniversity of CaliforniaRiversideUSA

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