. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE SMUT FUNGI 227 also cause these spores to germinate. They send out tiny tubes that penetrate the young oats plant. The threads of the fungus thus get into the growing tissues where they continue to develop by sending out numerous branches that run through all parts of the stalk. An elaborate mycelium is thus formed,, and continues to develop along with the growing oats plant. When the grain begins to send out its heads, the fungus develops a mass of thickened threads w
. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE SMUT FUNGI 227 also cause these spores to germinate. They send out tiny tubes that penetrate the young oats plant. The threads of the fungus thus get into the growing tissues where they continue to develop by sending out numerous branches that run through all parts of the stalk. An elaborate mycelium is thus formed,, and continues to develop along with the growing oats plant. When the grain begins to send out its heads, the fungus develops a mass of thickened threads within the florets. These threads soon give rise to millions of blackish spores that form the familiar pow- der of smutted grain. The spores of this fungus are so minute that the number in a single diseased oats head is almost incon- ceivably great. It has been esti- mated that a single cubic inch of the smut powder would contain 64,000,000,000 spores. Of course, most of these spores never develop. With the lower forms of life, Nature produces vast numbers of reproductive bodies, with the expectation, as it were, that only a small fraction of a per cent will find conditions suitable for continued existence. Many experiments have shown that Oats Smut may be prevented by soaking the seed in diluted solutions of for- malin, thus destroying the spores that cause the disease. There is another form of smut disease, which is more in- jurious to wheat than this loose smut, called the Bunt or Ill- smelling Smut, because it has a distinctly disagreeable OATS SMUT. 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 Weed, Clarence Moores, 1864-1947. Boston ; New York : D. C. Heath & Co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbenefic, bookyear1910
