Effects of Dew-Period Temperature on Germination of Conidia and Systemic Infection of Maize by Sclerospora sorghi

Publisher Website
Google Scholar
Abstract
The optimum temperatures for conidia germination and germ-tube growth of an American isolate of S. sorghi were 15 and 22.degree. C, respectively. Germination was high at 10-19.degree. C, and germ-tube growth was good at 14-22.degree. C. An air temperature range of 14-22.degree. C during a 2 h dew period was near optimum for systemic infection of maize. Systemic infection consistently occurred at 10-33.degree. C when plants were exposed to a dew-chamber period of at least 4 h. The American isolate had a lower optimum temperature range for conidia germination than that reported for an Indian isolate of S. sorghi, which indicates the existence of biotypes.

This publication has 0 references indexed in Scilit: