The book An Introduction to Bacterial Diseases of Plants was written by author Smith, Erwin F. (Erwin Frink), 1854-1927 Here you can read free online of An Introduction to Bacterial Diseases of Plants book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is An Introduction to Bacterial Diseases of Plants a good or bad book?
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With age the colonies become dull or dirty white, and slightly irregular in shape, with undulate or faintly crinkled margins into which run indistinct radiating lines. The buried colonies are small and lens-shaped. On +10 nutrient beef-peptone gelatin plates, after 3 days at 17° to 18°C., the well-isolated colonies vary from mere points to round growths 2 mm. in diameter. The gelatin is liquefied ^ The statement on p. 13 of Bull. No. 225, Bureau of Plant Industry, is erroneous. Fig. 235. — One ...of a number of spotted and blotched New York cauliflower leaves received from Prof. H. H. Whetzel in the fall of 1918. The leaves were yellowish and the spots pale green to black. These gave an organism culturally the same as Bacterium macuHcolurn McC, and this produced the characteristic lesions when sprayed upon cauliflowers in one of our houses, and from one of these Fig. 236 was obtained. Good infections were also obtained with it in Feb., 1920. Mcculloch's cauliflower spot: cause 307 Fig.
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