Fungous diseases of plants . arise numerous conidiophores,bearing elliptical or strongly curved, falcate conidia. These fruit-ing masses rupture the epidermis and the spores escape in a gelat-inous mass. The acervuli are produced very abundantly on bothsurfaces of the leaves but particularly upon the upper spores are commonly 19 X 7 /a, varying, however, from 12-24 X 5-9 At. Formerly, it was suggested that this gloeosporial formmight be connected with Gnomoniella circinata (Fckl.) Sacc. 206 FUNGOUS DISEASES OF PLANTS Klebahn in his investigations of this fungus ascertained thatwhe
Fungous diseases of plants . arise numerous conidiophores,bearing elliptical or strongly curved, falcate conidia. These fruit-ing masses rupture the epidermis and the spores escape in a gelat-inous mass. The acervuli are produced very abundantly on bothsurfaces of the leaves but particularly upon the upper spores are commonly 19 X 7 /a, varying, however, from 12-24 X 5-9 At. Formerly, it was suggested that this gloeosporial formmight be connected with Gnomoniella circinata (Fckl.) Sacc. 206 FUNGOUS DISEASES OF PLANTS Klebahn in his investigations of this fungus ascertained thatwhen the leaves are wintered over under suitable conditions ofmoisture an ascigerous stage is developed the following stage proved to be a Pseudopeziza; that is to say, aPseudopeziza was one of the most abundant of the perithecialstages found on wintered leaves. The spores of other perithecialforms yielded upon inoculation of the growing leaves no result,whereas spores of the Pseudopeziza developed in due course of.
Size: 1762px × 1419px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherbostonnewyorketcgi
