. Diseases of wheat, oats, barley, and rye. Grain. BOEWE: DISEASES OF WHEAT, OATS, BARLEY, AND RYE 53 are brown to black; a dark brown to black layer of coarse fun- gus hyphae can be found on each severely infected stem under the leaf sheath. Severely diseased plants are markedly dwarfed, tiller sparsely, if at all, die prematurely, and are ashen white in color. If a diseased plant reaches maturity, it usually has only one small head, which is barren or which bears shriveled grain. Under dry conditions affected plants are severely Fig. 16.—Take-all on wheat. This disease causes a dry
. Diseases of wheat, oats, barley, and rye. Grain. BOEWE: DISEASES OF WHEAT, OATS, BARLEY, AND RYE 53 are brown to black; a dark brown to black layer of coarse fun- gus hyphae can be found on each severely infected stem under the leaf sheath. Severely diseased plants are markedly dwarfed, tiller sparsely, if at all, die prematurely, and are ashen white in color. If a diseased plant reaches maturity, it usually has only one small head, which is barren or which bears shriveled grain. Under dry conditions affected plants are severely Fig. 16.—Take-all on wheat. This disease causes a dry rot of roots, crowns, and bases of stems. The base of a diseased stem, which is brown to black in color, has a layer of coarse fungus hyphae on the stem beneath the sheath, shown on second stem from left. Plants affected by take-all usually occur in circular areas. Such plants are dwarfed, lose their green color, and rapidly become 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
