Blister Canker of Apple Trees; a Physiological And Chemical Study ..
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11. Macrochemical analyses show that diseased bark has a higher percentage of dry matter, lipoids, alcohol-water-insoluble residue, and total nitrogen, but a lower percentage of alcohol- water- soluble material than healthy bark. The percentage of carbo- hydrates in both tissues seems to be about the same. Differences in tannin content are definite but not large. Sound healthy bark contains more than diseased bark and diseased bark more than dead bark from the surface of the canker.
12. The gre...ater oxidase activity of diseased bark is probably due to the combined activity of the oxidases of fungus and host, lower acidity, and possibly to a greater degree of dispersion of the oxidizing agent. The lower tannin content of diseased bark may also be a contributing factor.
The writer wishes to acknowledge his indebtedness to Dr. William Crocker, Dr. F. C. Koch, and Dr. Sophia H.
EcKERSON for valuable suggestions and criticism during the course of the investigation. Thanks are due to Dr. Paul Evans of the Missouri State Fruit Experiment Station for bark material used in the experiments.
What to read after Blister Canker of Apple Trees; a Physiological And Chemical Study ..?
You can find similar books in the "Read Also" column, or choose other free books by Rose, Dean H. (Dean Humboldt), 1878-1963 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
11. Macrochemical analyses show that diseased bark has a higher percentage of dry matter, lipoids, alcohol-water-insoluble residue, and total nitrogen, but a lower percentage of alcohol- water- soluble material than healthy bark. The percentage of carbo- hydrates in both tissues seems to be about the same. Differences in tannin content are definite but not large. Sound healthy bark contains more than diseased bark and diseased bark more than dead bark from the surface of the canker.
12. The gre...ater oxidase activity of diseased bark is probably due to the combined activity of the oxidases of fungus and host, lower acidity, and possibly to a greater degree of dispersion of the oxidizing agent. The lower tannin content of diseased bark may also be a contributing factor.
The writer wishes to acknowledge his indebtedness to Dr. William Crocker, Dr. F. C. Koch, and Dr. Sophia H.
EcKERSON for valuable suggestions and criticism during the course of the investigation. Thanks are due to Dr. Paul Evans of the Missouri State Fruit Experiment Station for bark material used in the experiments.
What to read after Blister Canker of Apple Trees; a Physiological And Chemical Study ..?
You can find similar books in the "Read Also" column, or choose other free books by Rose, Dean H. (Dean Humboldt), 1878-1963 to read onlineMoreLess
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