. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. Fig. 113. Guignardia Vaccinii on Cranberry : Pycnidial and Ascigerous Stages. (After Shear) 60 to 80 The spores are hyaline when young, and tinted when old. They are described as elliptical or subrhomboidal in form, with granular contents (Fig. 113, b). This fungus has been carefully cultivated, cultures being made from both stages and from hyphas, as well as from the tissue of the host beneath the scalded area upon the berries. It is reported to grow well upon acid and neutral
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. Fig. 113. Guignardia Vaccinii on Cranberry : Pycnidial and Ascigerous Stages. (After Shear) 60 to 80 The spores are hyaline when young, and tinted when old. They are described as elliptical or subrhomboidal in form, with granular contents (Fig. 113, b). This fungus has been carefully cultivated, cultures being made from both stages and from hyphas, as well as from the tissue of the host beneath the scalded area upon the berries. It is reported to grow well upon acid and neutral media, and especially vigorous upon corn meal in various combinations. The pycnidial form has been produced in culture; yet in many cultures the conidia are not produced in the perithecia, but the latter remains as a more or less sclerotial organ. The ascogenous form, however, has been secured in cultures from both berries and leaves. After a few generations in culture tubes, the fungus appeared to lose con- siderably in vitality, and frequently developed no spore forms. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Duggar, Benjamin M. (Benjamin Minge), 1872-1956. Boston ; New York : Ginn
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Keywords: ., bookauthorduggarbe, bookcentury1900, bookdecade1900, bookyear1909
