Contents -- Preface -- Acknowledgements -- Glossary -- A -- B -- C -- D -- E -- F -- H -- I -- L -- M -- N -- O -- P -- R -- S -- T -- U -- V -- W -- Chapter 1: Physiology -- 1.1 Introduction -- 1.2 Origin of Potatoes -- 1.3 The Growing Tuber -- 1.4 Factors Affecting Growth -- 1.5 Physiology of Potatoes in Store -- 1.6 Summary -- Chapter 2: Harvesting and Store Loading Systems -- 2.1 Harvester -- 2.2 Into-store Cleaning and Separation -- 2.3 Damage to the Crop -- 2.4 Pesticide Use -- 2.5 Pesticide Application -- 2.6 Transfer from Cleaner to Bulk Store Loading Elevator -- 2.7 Transfer from Cleaner/Separator to Boxes -- 2.8 Into-store Drying Systems -- 2.9 Store Loading Equipment -- 2.10 Cleaning and Separating Seed Following Initial Storage and Drying -- 2.11 Summary -- Chapter 3: Store Climate -- 3.1 Microclimate Surrounding Tubers -- 3.2 Benefit from Sealed, Insulated Buildings -- 3.3 Purpose of Ventilation -- 3.4 The Cooling Process -- 3.5 Causes of Condensation -- 3.6 Climate Zones -- 3.7 Selection of Ventilation System Based on Climate Type -- 3.8 Crop Storage Life -- 3.9 Specific Requirements for Pre-packing -- 3.10 Specific Requirements for Processing Potatoes -- 3.11 Specific Requirements for Seed -- 3.12 Summary -- Chapter 4: Disease Control in Store -- 4.1 Introduction -- 4.2 Host-Disease-Environment Triangle -- 4.3 Storage Strategy Dependent on Crop Condition at Harvest as well as Storage Principles -- 4.4 Bacteria -- 4.5 Fungi -- 4.6 How Disease Gains Access to the Tuber Flesh -- 4.7 Ecosystems -- 4.8 Hygiene -- 4.9 Holistic Approach -- 4.10 Summary -- Chapter 5: Store Design and Structure -- 5.1 Low-cost Structures -- 5.2 Building Structures -- 5.3 Building Complexes -- 5.4 Store Aspect and Exposure -- 5.5 Designing for Store Hygiene -- 5.6 Insulation Materials -- 5.7 Building Fabric -- 5.8 Floors -- 5.9 Doors.

5.10 Health and Safety -- 5.11 Summary -- Chapter 6: Store Ventilation -- 6.1 Introduction -- 6.2 Components of a Ventilation System -- 6.3 Calculation of Airflow Rate and Backpressure in Ducted System -- 6.4 Air Distribution in Bulk Stores -- 6.5 Humidification of Ventilating Air -- 6.6 Airspace Ventilation Systems for Boxes -- 6.7 Airspace Ventilation Systems for Sacks and Big Bags -- 6.8 Positively Ventilated Systems for Boxes -- 6.9 Sprout Control using Chloropropham for Processing and Ware Potatoes -- 6.10 Warming in the Store -- 6.11 Summary -- Chapter 7: Store Refrigeration -- 7.1 Refrigeration Systems -- 7.2 Two-stage Water/Glycol Systems -- 7.3 Chilled-water Cooling Systems -- 7.4 Combined Refrigeration/Ambient-air Cooling Systems -- 7.5 Comparison between Direct Expansion, Two-stage Water/Glycol and Chilled-water Systems -- 7.6 Common Faults and Maintenance -- 7.7 Sizing a Refrigeration Plant -- 7.8 Summary -- Chapter 8: Store Environment Monitoring and Control -- 8.1 Internal Store and External Air Monitoring -- 8.2 Control of Crop Cooling and Cool Storage in Bulk Stores -- 8.3 Control of Crop Cooling and Cool Storage in Box Stores -- 8.4 Controlling Combined Ambient-air/Refrigeration Cooling -- 8.5 Ensuring Uniformity of Temperatures in Store -- 8.6 Control of Ventilation During Drying and Wound Healing -- 8.7 Control Measures to Minimize Energy Use -- 8.8 Sensors to Provide Fuller Information on Store Climate -- 8.9 Sensors to Aid Store Management -- 8.10 Logging Systems -- 8.11 Data Storage, Use and Access -- 8.12 Summary -- Chapter 9: Store Management -- 9.1 Introduction -- 9.2 Store Hygiene and Equipment Inspection -- 9.3 Store Preparation -- 9.4 In-field Sampling -- 9.5 Loading into Store -- 9.6 Drying and Wound-healing Period -- 9.7 Cooling -- 9.8 Store Monitoring -- 9.9 Managing the Use of Low-tariff Electricity.

9.10 Sprout Suppressants -- 9.11 Reconditioning of Crops for Processing -- 9.12 Warming Crops for Grading and Dispatch -- 9.13 Summary -- Chapter 10: Seed Grading and Preparation for Planting -- 10.1 Introduction -- 10.2 Specific Requirements for Seed Storage -- 10.3 Altering Chronological Age of Seed to Produce Bold or Prolific Crops -- 10.4 Grading of Seed -- 10.5 Chitting, or Pre-sprouting, of Seed -- 10.6 Chitting Store for 300 t of Seed -- 10.7 Communication Between Seed Producer and Customer -- 10.8 Summary -- Chapter 11: Packhouse and Processing Facilities -- 11.1 Cleaning and Sizing Prior to Packing -- 11.2 On-farm versus Off-farm Cleaning and Sizing -- 11.3 Packhouse Layout -- 11.4 Components of the Packhouse or Processor Intake -- 11.5 Dry Cleaning Equipment -- 11.6 Potato Washing Equipment -- 11.7 Cleanliness of Packhouse or Processor Intake -- 11.8 Grader Design for Minimum Damage -- 11.9 Graders or Sizers -- 11.10 Inspection -- 11.11 Combined Grading and Automatic Inspection -- 11.12 Packaging -- 11.13 Packhouse Automation -- 11.14 Dispatch Areas and Chills -- 11.15 Reject Potatoes -- 11.16 Summary -- Chapter 12: Quality Assurance -- 12.1 Introduction -- 12.2 Quality -- 12.3 Quality Assurance -- 12.4 Quality Assurance Schemes -- 12.5 Quality Control -- 12.6 HACCP Procedures -- 12.7 Traceability -- 12.8 Standard for Selling Crops on the Futures Market -- 12.9 Labelling Lifted Crops -- 12.10 Sampling Protocols -- 12.11 Sampling of Incoming Product -- 12.12 Crop Assessment Prior to Dispatch -- 12.13 Monitoring Crop In and Out and Waste Produced -- 12.14 Critical Control Points on Inspection, Grading and Packing Line -- 12.15 Final Product Sampling -- 12.16 Accessibility to Quality Assurance System's Information -- 12.17 Summary -- Chapter 13: Marketing and Costs -- 13.1 Cost and Returns from Storage and Grading.

13.2 Global Potato Production -- 13.3 Effect of Climatic Area on Production -- 13.4 Continuous Supply to the Market -- 13.5 Calculating Storage and Grading Costs -- 13.6 Storage Capital Costs -- 13.7 Calculation of Store Variable Costs -- 13.8 Calculation of Store Operating Costs -- 13.19 Calculation of the Cost of Grading -- 13.10 Summary -- Appendix 1: Metric-US Imperial Conversion Tables -- Appendix 2: Weather Data for World Climatic Zones -- Appendix 3: Thermal Conductivity (λ Values) for Various Building Structural Components -- Appendix 4: Theoretical Derivation of the Dimensions of Lateral Ducts used in Bulk Storage -- References -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- X.