. Fungous diseases of plants, with chapters on physiology, culture methods and technique . 4 Fig. 165. Cylindrosporium (Photographs by Charles Brooks)rt, spot induced by inoculation of apple ; b, mycelium in agar breaks through it to expose spores and sporophores. The sporesare hyaline, from one to five celled, and variously curved and con-torted. They are from 2 to /x in diameter and from 15 to 8o/x chlamydospores and stromata are probably the agencies thatcarry the fungus over the winter. Under ordinary conditions ofpreparing separation cultures this fungus does not readi
. Fungous diseases of plants, with chapters on physiology, culture methods and technique . 4 Fig. 165. Cylindrosporium (Photographs by Charles Brooks)rt, spot induced by inoculation of apple ; b, mycelium in agar breaks through it to expose spores and sporophores. The sporesare hyaline, from one to five celled, and variously curved and con-torted. They are from 2 to /x in diameter and from 15 to 8o/x chlamydospores and stromata are probably the agencies thatcarry the fungus over the winter. Under ordinary conditions ofpreparing separation cultures this fungus does not readily grow,and agar will ordinarily dry out before the fungus becomes notice-able. On this account it has seemed to be a difficult organism toisolate. As a matter of fact, however, under ordinary constantlymoist conditions or in liquid media it grows readily.^ Infection probably takes place in July or August when the stomataare being torn open and the protecting layers of the lenticels arenot yet formed, a season when the metabolism of the apple isextremely great and the transpiration str
Size: 1613px × 1549px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherbostonnewyorketcgi
