. The fungi which cause plant disease . Plant diseases; Fungi. 550 THE FUNGI WHICH CAUSE PLANT DISEASE 100-200 X 4 /I, browTiish; conidia falcate, 25 x 4 n; conidiophores ovoid, 20 X 8 ii., hyaline to fuscous. This is believed to be the chief cause of the red rot of sugar- ;* It was reported in" the United States by Edgerton,"^ also by Stevens.™ Inoculation experiments indicate that it is distinct from C. lineola, on sorghum and Johnson grass, which it resembles morphologically. C. cereale ;^ Spots circular to ovoid, 30 mm.; acervuli dark brown, or black; setae f
. The fungi which cause plant disease . Plant diseases; Fungi. 550 THE FUNGI WHICH CAUSE PLANT DISEASE 100-200 X 4 /I, browTiish; conidia falcate, 25 x 4 n; conidiophores ovoid, 20 X 8 ii., hyaline to fuscous. This is believed to be the chief cause of the red rot of sugar- ;* It was reported in" the United States by Edgerton,"^ also by Stevens.™ Inoculation experiments indicate that it is distinct from C. lineola, on sorghum and Johnson grass, which it resembles morphologically. C. cereale ;^ Spots circular to ovoid, 30 mm.; acervuli dark brown, or black; setae few or many, dark brown to black, at base 6-8 n thick, tapering to a length of 60-120 n, continuous or 1 to 2-septate;. Fig. 371.—C. cereale, acervulus showing mycelium, setse, oonid- iospores and spores. After Manns. conidia 18-26 x 3-4 n, spindle to boat-shaped, 2 to several- guttulate; conidiophores, very short, 12-6 x 1-2 fi. This fimgus is parasitic on the roots, stems, blades and spikes of rye, wheat, oats, barley, emmer, orchard grass, timothy, blue grass and chess. The disease causes a premature ripening and shrivelling of the grain. Superficially the diseased heads present the same appearance as those attached by scab (Fusariose) but no pink over-growth is present, nor is the presence of the disease always apparent, as it was found on numerous heads of grain which appeared to be healthy. Morphological studies indicate that all the hosts mentioned above are affected by the same fungus. This was confirmed by cross inoculations in the case of wheat and 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 Stevens, Frank Lincoln, 1871-1934. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
