Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Influenza della temperatura sulla germinazione delle uredospore di Puccinia cichorii (D.C.) Bell.

F. Ciccarese and A. Siniscalco
Phytopathologia Mediterranea
Vol. 29, No. 1 (Aprile 1990), pp. 48-50
Stable URL: http://www.jstor.org/stable/42685724
Page Count: 3
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Influenza della temperatura sulla germinazione delle uredospore di Puccinia cichorii (D.C.) Bell.
Preview not available

Abstract

E'stata studiata l'influenza della temperatura sulla germinazione delle uredospore di Puccinia cichorii (D.C.) Bell. I saggi sono stati effettuati a 0,5,10,15,20,25,30 e 35°C calcolando la percentuale di uredospore germinate e la lunghezza del tubulo germinativo. P. cichorii, pur mostrando un optimum di germinabilità delle uredospore e di crescita del tubulo germinativo intorno a 20°C, ha manifestato un'apprezzabile attività vegetativa anche a temperature vicine a 5°C. Ciò spiegherebbe la presenza di infezioni anche gravi su colture invernali di Cicoria. The effect of temperature on the germination of Puccinia cichorii (D.C.) Bell. uredospores was tested. Percentage of germination of uredospores and lenght of germ tubes at 0, 5,10,15,20,25, 30 and 35°C were calculated. The optimum temperature was about 20°C, although P. cichorii exhibited a considerable vegetative activity at 5°C. This may explain the occurrence of rust infection in winter Chicory growings in southern Italy.

Page Thumbnails

  • Thumbnail: Page 
48
    48
  • Thumbnail: Page 
49
    49
  • Thumbnail: Page 
50
    50