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Plant diseases : epidemics and control /
Plant Diseases: Epidemics and Control provides a description of the methods of epidemiological analysis based on infection rates and the relation between the amount of inoculum and the amount of disease it produces. The book shows how to study the increase of pathogen populations and the epidemiolog...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York :
Academic Press,
1963.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Plant Diseases: Epidemics and Control; Copyright Page; PREFACE; Table of Contents; Summary; Summary; CHAPTER 1. The Control of Plant Disease Studied as Part of Epidemiology; 1.1. The Population of Pathogens; 1.2. Epidemics and Biological Warfare; 1.3. The Language of Epidemiology. Some Expressions; 1.4. A Suggested Order of Reading the Chapters; 1.5. The Spread of Disease and Its Bearing on the Technique of Field Experiments; CHAPTER 2. About Interest on Money. Logarithmic Increase; 2.1. Interest is Proportional to Initial Capital; 2.2. Interest per Cent and Interest per Unit.
- 2.3. Simple Interest2.4. Discontinuous Compound Interest; 2.5. Continuous Compound Interest; 2.6. Continuous Compound Interest Seen in Another Way; 2.7. Equivalent Rates of Continuous and Discontinuous Compound Interest; 2.8. Variable Rates of Continuous Compound Interest; 2.9. Consistent Units of Time; 2.10. Natural Logarithms; 2.11. Logarithmic Increase; Exercises; CHAPTER 3. The Logarithmic and the Apparent Infection Rates; Summary; 3.1. Statement of the General Problem of This Book; 3.2. The Intermittent Increase of Disease; 3.3. The Percentage and the Proportion of Disease.
- 3.4. Logarithmic Increase of Disease and Increase That Is Not Logarithmic3.5. The Meaning of Infection Rates; 3.6. The Words, per Unit, Again; Exercises; CHAPTER 4. How to Plot the Progress of an Epidemic; 4.1. The Increase of Disease with Time; 4.2. Two Ways in Which Disease Can Increase with Time. Compound Interest Disease'' and Simple Interest Disease
- 4.3. Increase of Disease by Multiplication. Compound Interest Disease
- 4.4. The Increase of Disease without Multiplication. Simple Interest Disease
- 4.5. The Correction Factor (1
- x).
- 4.6. The Reason for Using Log [1/(1
- x)] When There Is No MultiplicationExercises; Epilog; CHAPTER 5. The Basic Infection Rate; Summary; 5.1. The Basic Infection Rate and the Latent Period; 5.2. The Incubation Period; 5.3. Some Biological Meanings; 5.4. The Early Stages of Artificially Induced Epidemics of Stem Rust of Wheat; 5.5. The Relation between r and R; 5.6. How R Changes as an Epidemic Progresses; 5.7. The Relation between r and R; 5.8. The Products prl, pr, and pR; 5.9. The Limit to the Explosiveness of an Epidemic; 5.10. A Discontinuous Infection Model.
- 5.11. Period of Infection is Reduced to a Point Each Year and p is 1 YearExercises; CHAPTER 6. The Latent Period; Summary; 6.1. Logarithmic Increase of Infection with p and R Constant; 6.2. The Variation of rl with Time, with p and R Constant; 6.3. The Variation of rl as an Average Value over an Interval of Time; 6.4. The Effect of a Prolonged Period of Inoculation on the Variation of rl; 6.5. The Effect of Variation of the Latent Period p on the Variation of rl; 6.6. A Wider Interpretation of rl; 6.7. The Error from Using a Constant Mean Value p in Eq. (5.7) Instead of a Constant Value p.