. Diseases of small grain crops in Illinois. Grain. 48 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR SS as the outer. Ordinarily only a few glumes in a head become infected, but in severe cases the entire head is attacked and turns dark brown. The joints of diseased spikes are almost Fig. 16.—Glume blotch of wheat. The fungus attacks the joints most often, discoloring them and producing tiny, black spore-bearing bodies. On the glumes small, dark spots are produced, on which spore-bearing bodies are relatively rare. On the stem the attack usually occurs at the joints, which shrivel, turn bro
. Diseases of small grain crops in Illinois. Grain. 48 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR SS as the outer. Ordinarily only a few glumes in a head become infected, but in severe cases the entire head is attacked and turns dark brown. The joints of diseased spikes are almost Fig. 16.—Glume blotch of wheat. The fungus attacks the joints most often, discoloring them and producing tiny, black spore-bearing bodies. On the glumes small, dark spots are produced, on which spore-bearing bodies are relatively rare. On the stem the attack usually occurs at the joints, which shrivel, turn brown and later become sparingly dotted with black spore-bearing bodies. Glume blotch spots on the sheaths are dark brown and often so large as to include most of the sheath, while those on the blade of the leaf are light colored in the center and bordered with brown. In the light area a few black spore- bearing bodies appear on both leaf surfaces. Glume blotch should not be confused either with black chaff. 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 Boewe, Gideon Herman, 1895-. Urbana
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Keywords: ., bookcentury1900, bookcolle, bookpublisherurbana, booksubjectgrain
