Tropical Diseases of Legumes

Description

Tropical Diseases of Legumes consists of papers presented at a workshop held at Rio Piedras Agricultural Station, University of Puerto Rico, in June 1974.
Legumes are group of plants that provide an important and often sole source of protein in the diet of millions of people. In the growing problem of hunger, there is an immediate need to raise the production of legumes through better knowledge of plant diseases, by ultimate prevention of these diseases, and through improved crop production. Consequently, a workshop is organized and the presented papers, grouped into four parts, are shown in this book. The first two parts describe the rugaceous and mosaic diseases. Bacterial diseases, chemical control, and ecology of pathogens are explained in the third part of this book. The last part explores the origin and improvement of the common bean, as well as its diseases in the tropical Americas.
This book aims to provide a stimulating forum for discussion of the findings and observations in tropical legume disease research.

Front Cover 2
Tropical Diseases of Legumes 5
Copyright Page 6
Table of Contents 7
List of Contributors 11
Preface 15
Part I: Rugaceous Diseases 17
- CHAPTER 1. RUGACEOUS (WHITEFLY-TRANSMITTED) VIRUSES IN PUERTO RICO 19
  - I. Introduction 19
  - II. The Viruses 21
  - III. Addendum 29
  - REFERENCES 41
- CHAPTER 2. INCREASE IN THE POPULATIONAL DENSITY OF BEMISIA TABACI, A THREAT OF WIDESPREAD VIRUS INFECTION OF LEGUME CROPS IN BRA 43
  - I. Introduction 43
  - II. Whitefly-transmitted Diseases of the Bean and Soybean Crops in Brazil 44

Front Cover 2
Tropical Diseases of Legumes 5
Copyright Page 6
Table of Contents 7
List of Contributors 11
Preface 15
Part I: Rugaceous Diseases 17
- CHAPTER 1. RUGACEOUS (WHITEFLY-TRANSMITTED) VIRUSES IN PUERTO RICO 19
  - I. Introduction 19
  - II. The Viruses 21
  - III. Addendum 29
  - REFERENCES 41
- CHAPTER 2. INCREASE IN THE POPULATIONAL DENSITY OF BEMISIA TABACI, A THREAT OF WIDESPREAD VIRUS INFECTION OF LEGUME CROPS IN BRA 43
  - I. Introduction 43
  - II. Whitefly-transmitted Diseases of the Bean and Soybean Crops in Brazil 44
  - III. Relationship Between Whitefly-transmitted Bean and Soybean Diseases from Different Countries 55
  - IV. Increase in Populational Density of Bemisia tabaci in Brazil 56
  - V. Migration of Bemisia tabaci in Areas of High Population Density 57
  - VII. Control of Whitefly-transmitted Diseases 59
  - VI. Pairing-off of Male and Female Whiteflies 59
  - VIII. Discussion 62
  - REFERENCES 64
- CHAPTER 3. DISEASES TRANSMITTED BY BEMISIA TABACI IN ELSALVADOR 67
  - I. Introduction 67
  - II. Establishment of Colonies 68
  - III. Isolation and Transmission of the Sida and Kenaf Viruses 68
  - IV. Discussion 68
- CHAPTER 4. OBSERVATIONS ON THE GOLDEN MOSAIC OF BEAN (Phaseolus vulgaris L.) IN JAMAICA 71
  - I. Introduction 71
  - II. Symptoms of Golden Mosaic 71
  - III. Transmission and Host Range 72
  - IV. Distribution and Seasonal Occurrence 72
  - V. Influence of Time of Infection on Yield 73
  - VIII. Discussion 74
  - VI. Evaluation of Varieties for Resistance to Golden Mosaic 74
  - VII. Effect of Insecticides on Incidence of Golden Mosaic 74
  - REFERENCES 75
- CHAPTER 5. MECHANICAL TRANSMISSION OF WHITEFLY (Bemisia tabaci)-BORNE DISEASE AGENTS OF BEANS IN EL SALVADOR 77
  - I. Introduction 77
  - II. Materials and Methods 78
  - III. Results 79
  - IV. Discussion 83
  - REFERENCES 85
- CHAPTER 6. ETIOLOGY OF WHITEFLY-BORNE DISEASES 87
  - I. Introduction 87
  - III. Insect Transmission 88
  - II. Historical 88
  - IV. Mechanical Transmission 89
  - V. Mycoplasmalike and Rickettsialike Organisms 90
  - VI. Viroids 91
  - VII. Possible Diversity of Agents 91
  - VIII. Conclusions 92
  - REFERENCES 92
- CHAPTER 7. A NEW TYPE OF WHITEFLY-TRANSMITTED DISEASE–A LINK TO THE APHID-TRANSMITTED VIRUSES 95
  - I. Introduction 95
  - III. Materials and Methods 96
  - II. Background 96
  - IV. Economic Importance 97
  - V. Host Range 97
  - VI. Symptoms 98
  - VII. Transmission Tests 99
  - VIII. Virus-Vector Relationships 100
  - IX. Discussion 103
  - REFERENCES 104
- Part II: Mosaic Diseases 105
  - CHAPTER 8. A MOSAIC VIRUS OF CANAVALIA MARITIMA (BAY-BEAN) IN PUERTO RICO 107
    - I. Introduction 107
    - II. Materials and Methods. 108
    - III. Results and Discussion 109
    - IV. Conclusion 113
    - REFERENCES 117
  - CHAPTER 9. A VEIN BANDING MOSAIC OF BEANS INCITED BY ASTRAIN OF CUCUMBER MOSAIC VIRUS 119
    - I. Introduction 119
    - II. Materials and Methods 120
    - III. Results 122
    - IV. Discussion 127
    - REFERENCES 127
  - CHAPTER 10. ISOLATION OF A STRAIN OF CUCUMBER MOSAIC VIRUS FROM BEANS IN ILLINOIS 129
    - III. Results and Discussion 129
    - I. Introduction 129
    - II. Materials and Methods 129
    - REFERENCES 130
  - CHAPTER 11. A NEW VIRUS DISEASE OF BEANS TRANSMITTED BY CHRYSOMELID BEETLES 131
    - I. Introduction 131
    - II. Isolation of the Virus 131
    - III. Host Plants 131
    - VI. Physical Properties 132
    - IV. Seed Transmission 132
    - V. Transmission by Insects 132
    - REFERENCES 133
  - CHAPTER 12. SOME OBSERVATIONS ON THE SEED-TRANSMISSION OF BEETLE-TRANSMITTED COWPEA MOSAIC VIRUS 135
    - I. Introduction 135
    - II. Materials and Methods 135
    - REFERENCES 136
    - III. Results and Discussion 136
  - CHAPTER 13. BEETLE TRANSMISSION OF LEGUME VIRUSES 139
    - I. Introduction 139
    - II. The Viruses 139
    - III. The Beetles 140
    - IV. Virus-Beetle Relationships 141
    - V. Projections 145
    - REFERENCES 147
  - Part III: Bacterial Diseases, Chemical Control, and Ecology of Pathogens 149
    - CHAPTER 14. EFFECT OF SEED-BORNE BACTERIA IN SOYBEAN ON GERMINATION AND EMERGENCE 151
      - I. Introduction 151
      - II. Results 151
      - REFERENCES 153
      - III. Conclusion 153
    - CHAPTER 15. THE CONTROL OF COWPEA DISEASES IN THE IITA GRAIN LEGUME IMPROVEMENT PROGRAM 155
      - II. Disease Control by Fungicides 155
      - I. Introduction 155
      - III. Disease Control by Host Plant Resistance 160
    - CHAPTER 16. EVALUATION OF NEMATODE POPULATION IN PIGEON PEA 163
      - I. Introduction 163
      - II. Materials and Methods 163
      - III. Results and Discussion 165
      - REFERENCES 165
    - CHAPTER 17. THE IMPORTANCE OF DISEASES IN RELATION TO THE GRAIN LEGUME RESEARCH PROGRAM IN THE EASTERN CARIBBEAN 167
      - I. Introduction 167
      - II. Diseases of Pigeon Peas 169
      - III. Diseases of Importance to the Caribbean 170
      - IV. Conclusions 171
      - REFERENCES 171
    - Part IV: Origin, Improvement and Prospects of the Common Bean 173
      - CHAPTER 18. RESEARCH RELATED TO THE ORIGIN AND IMPROVEMENT OF THE COMON BEAN (Phaseolus vulgaris L.) 175
        
        I. Introduction 175
        
        II. Research on the Origins of the Common Bean 176
        
        REFERENCES 178
        
        III. Future Prospects 178
      - CHAPTER 19. BEAN (PHASEOL US VULGARIS) DISEASES IN THE TROPICAL AMERICAS 181
        
        REFERENCES 182
      - Subject Index 183

Description

TOC

Reviews (0)