Chapters in this book

1. Frontmatter I
2. Foreword V
3. Preface VII
4. Chairmen of Symposium Sessions VIII
5. Contents IX
6. PART I. INTRODUCTION
7. Recent Advances in the Study of the Ecology of Soil-borne Plant Pathogens 3
8. PART II. POPULATION DYNAMICS OF PATHOGENS IN SOIL
9. Use of Population Studies in Research on Plant Pathogens in Soil 11
10. Factors Affecting Plant Pathogen Population in Soil 16
11. Significance of Populations of Major Plant Pathogens in Soil: Bacteria Including Streptomyces 22
12. Significance of Populations of Pythium and Phytophthora in Soil 25
13. The Significance of Populations of Pathogenic Fusaria in Soil 28
14. Significance of Population Level of Verticillium in Soil 31
15. Significance of Population Level of Rhizoctonia solani in Soil 34
16. Measurement of Host Reactions to Soil-borne Pathogens 37
17. PART III. GENETICAL ASPECTS OF PATHOGENIC AND SAPROPHYTIC BEHAVIOR IN ROOT-INFECTING FUNGI
18. Genetical Aspects of Pathogenic and Saprophytic Behaviour of Soil-borne Fungi: BcLsidiomycetes with Special Reference to Thanatephorus cucumeris 45
19. Genetical Aspects of Pathogenic and Saprophytic Behavior of the Phycomycetes with Special Reference to Phytophthora 50
20. The Genetics of Asexual Phytopathogenic Fungi with Special Reference to Verticillium 55
21. Mechanisms of Variation in Culture and Soil 63
22. The Significance of Genetic Mechanisms in Soil Fungi 69
23. PART IV. EFFECT OF SOIL MOISTURE AND AERATION ON FUNGAL ACTIVITY WITH ROOT DISEASES
24. Effect of Soil Moisture and Aeration on Fungal Activity: an Introduction 77
25. Effect of Soil Water on Microbial Growth, Antagonism, and Nutrient Availability in Relation to Soil-borne Fungal Diseases of Plants 81
26. Effect of Aeration and of Concentration of Carbon Dioxide on the Activity of Plant Pathogenic Fungi in the Soil 89
27. PART V. EFFECT OF ROOT EXUDATES ON ROOT INFECTION
28. Nutrition and Pathogenesis of Fusarium solani /. sp. phaseoli 95
29. The Influence of Cottonseed Exudate on Seedling Infection by Rhizoctonia solani 99
30. Some Factors Involved in the Accumulation of Phycomycete Zoospores on Plant Roots 103
31. Tactic Responses of Zoospores of Phytophthora 109
32. Germination of Chlamydospores of Phytophthora 112
33. Factors Affecting the Prepenetration Phase of Infection by Rhizoctonia solani 116
34. Armillaria mellea Infection Structures: Rhizomorphs 122
35. The Significance of Vesicular-arbuscular Mycorrhizae in Plant Nutrition 125
36. Response of Resting Structures of Root-Infecting Fungi to Host Exudates: An Example of Specificity 130
37. The Influence of Root Exudates on the Activity of Some Plant-parasitic Nematodes 134
38. PART VI. ROOT DISEASES OF FOREST CROPS
39. The Role of Basidiospores in Stump Infection by Armillaria mellea 141
40. The Ecology of Armillaria mellea: Rhizomorph Growth Through Soil 147
41. Armillaria mellea (Vöhl ex Fries) Kummer in Central Africa: Studies on Substrate Colonisation Relating to the Mechanism of Biological Control by Ring-barking 150
42. Fomes annosus in the Southern United States 153
43. Fomes annosus in Eastern Canada 156
44. The Role of Resin in the Resistance of Conifers to Fomes annosus 161
45. Poria Root Rot: Problems and Progress in the Pacific Northwest 164
46. Root Rot Induced by Polyporus tomentosus in Pine and Spruce Plantations in Wisconsin 167
47. The Influence of Soil Bacteria on the Mode of Infection of Pine Roots by Phytophthora cinnamomi 171
48. Phytophthora cinnamomi in New Zealand 173
49. PART VII. ROOT DISEASES OF TROPICAL PLANTATION CROPS
50. A Comparison of Methods of Dispersal, Survival, and Parasitism in Some Fungi Causing Root Diseases of Tropical Plantation Crops 179
51. Studies on the Parasitism and Control of Tea Root Disease Fungi in Ceylon 188
52. Economics of Control of the White Root Disease (Fomes lignosus) of Hevea brasiliensis in Ceylon 191
53. Some Factors in the Control of Root Diseases of Oil Palm 194
54. Banana Root Diseases Caused by Fusarium oxysporum /. sp. cubense, Pseudomonas solanacearum, and Radopholus similis: A Comparative Study of Life Cycles in Relation to Control 197
55. PART VIII. CROP GROWTH RESPONSES TO SOIL FUMIGATION
56. One Centennium of Soil Fumigation: Its First Years 203
57. A Concept of Rootlet Health of Strawberries in Pathogen-free Field Soil Achieved, by Fumigation 208
58. Increased and Decreased Plant Growth Responses Resulting from Soil Fumigation 216
59. Nutrition of Young Conifers and Soil Fumigation 222
60. Growth Response of Rice to Soil Fumigation 226
61. Physical Soil Factors and Soil Fumigant Action 229
62. Selective Killing of Soil Microorganisms by Aerated Steam 234
63. Index 241