| Contributors |
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xi | |
| Preface |
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xxiii | |
| Acronyms |
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xxv | |
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PART I ADVANCES IN SWEETPOTATO AND POTATO BREEDING |
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1 Advances in Sweetpotato Breeding from 1992 to 2012 |
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3 | (66) |
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2 Breeding Sweetpotato for Yield and Beta-carotene Content in Burkina Faso |
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69 | (10) |
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3 Development of Dual-purpose Sweetpotato Varieties through Participatory Breeding in Rwanda |
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79 | (9) |
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4 Development and Evaluation of New Sweetpotato Varieties through Farmer Participatory Breeding for High Altitudes in Kenya |
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88 | (10) |
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5 In Vitro Evaluation of Orange-fleshed Sweetpotato Genotypes for Drought Tolerance Using Polyethylene Glycol |
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98 | (12) |
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6 Ex Ante Evaluation of Improved Potato Varieties for Sub-Saharan Africa |
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110 | (12) |
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7 Durable Cisgenic Resistance to Phytophthora infestans in Potato, and Perspectives for Applications in Africa |
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122 | (6) |
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8 Exhibition Trial and Farmer Participatory Selection of New Late-blight Resistant B3C1 Potato Genotypes for Adaptation to Nigerian Conditions |
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128 | (6) |
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9 Integrative Breeding Strategy for Making Climate-smart Potato Varieties for Sub-Saharan Africa |
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134 | (9) |
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10 New Elite Potato Clones with Heat Tolerance, Late Blight and Virus Resistance to Address Climate Change |
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143 | (12) |
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PART II GETTING SEED POTATO SYSTEMS MOVING |
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11 Strategies to Improve Seed Potato Quality and Supply in Sub-Saharan Africa: Experience from Interventions in Five Countries |
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155 | (13) |
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12 Public-Private Partnership Supporting Women-driven Seed Potato Multiplication in the Lumwana Catchment Area of North-Western Province of Zambia |
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168 | (8) |
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13 Risk of Uncontrolled Importation of Seed Potato from Europe to East and Central Africa: What are the Policy Options? |
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176 | (10) |
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14 Quality Seed Potato Production: Experiences From the Highlands of Ethiopia |
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186 | (13) |
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15 A Possible Pathway for Developing Formal Seed Potato Production in Sub-Saharan Africa: A Case of Uganda National Seed Potato Producers' Association (UNSPPA) |
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199 | (8) |
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16 Potato Yield Variation as Affected by Virus Seed Degeneration and Growth Conditions in Tunisia |
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207 | (5) |
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17 Seed Potato Certification in Kenya: Prospects, Achievements and Constraints |
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212 | (6) |
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18 Adaptation and Improvement of the Seed-plot Technique in Smallholder Potato Production |
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218 | (8) |
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19 Integration of In Vitro Techniques in Informal Seed Production Systems of Potato in Africa |
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226 | (9) |
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20 Comparison Between Fluorescent Lamps and Light-emitting Diodes on In Vitro Growth of Potato Microplants and Subsequent In Vivo Performance and Minituber Production |
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235 | (7) |
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21 An Analysis of Demand, Supply and Elasticities of Seed Potato in Major Producing Areas in Nigeria |
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242 | (7) |
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22 An Alternative Technology for Pre-basic Seed Potato Production -- Sand Hydroponics |
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249 | (5) |
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23 Improving Seed Health and Seed Performance by Positive Selection in Three Kenyan Potato Varieties |
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254 | (7) |
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24 Scaling Up the Adoption of Positive Selection and Seed-plot Techniques in Seed Potato Systems in Uganda -- UNSPPA's Experience |
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261 | (5) |
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25 Substrate and Genotype Effects on Growth for Seed Potato [ Solanum tuberosum L.) Production in Malawi |
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266 | (8) |
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26 Work of Multiple Organizations to Improve Seed Potato Health in the USA and an Example of Change to Reduce Potato Virus Y in Seed Potato Lots |
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274 | (5) |
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27 Potato Virus Yin. South Africa: Isolate Characterization and Assessment of Potato Cultivar Resistance |
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279 | (10) |
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PART III ADDRESSING BOTTLENECKS IN THE SWEETPOTATO SEED SYSTEMS |
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28 Can Small Still Be Beautiful? Moving Local Sweetpotato Seed Systems to Scale in Sub-Saharan Africa |
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289 | (22) |
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29 Effect of Long-term In Vitro Subculturing on Quality Degeneration of Sweetpotato Varieties: Morpho-anatomic Assessment and Simple Sequence Repeat (SSR) Analysis |
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311 | (11) |
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30 Shortage of Sweetpotato Planting Material Caused by Prolonged Dry Seasons in Africa: Strategies to Increase its Availability in Uganda |
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322 | (8) |
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31 Evaluation and Promotion of Sustainable Seed Supply Systems for Vegetatively Propagated Crops in Central and Eastern Kenya |
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330 | (9) |
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PART IV TACKLING DISEASE AND CROP MANAGEMENT IN POTATO AND SWEETPOTATO |
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32 Disease Management, Especially Viruses in Potato and Sweetpotato |
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339 | (11) |
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33 Insect Life Cycle Modelling (ILCYM) Software - A Generic Platform for Developing Insect Phenology Models, Population Analysis and Risk Mapping |
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350 | (12) |
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34 Phytophthora infestans Population Changes in Kenya Pose Challenges to Existing Potato Blight Control Strategies |
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362 | (6) |
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35 Root Knot Nematodes and Soft Rot Enterobacteriaceae, Two Emerging Problems of Potatoes |
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368 | (7) |
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36 Can Mineral Oil Protect Seed Potato Against Aphid Transmission of Potato Virus Y? |
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375 | (7) |
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37 The Farming Systems of Potential Potato Production Areas of Chencha, Southern Ethiopia |
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382 | (14) |
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38 Aphids Infesting Potato in Kenya |
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396 | (9) |
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39 Maize-Orange-fleshed Sweetpotato Intercropping: Potential for Use to Enhance Food Security and Scaling-up the Nutrition Effort in Malawi |
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405 | (9) |
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40 Effect of Staking on Flower Induction, Pollination and Cross-compatibility Among Sweetpotato |
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414 | (7) |
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41 Sweetpotato and Garden Egg Intercrop Compatibility Studies in Umudike, Nigeria |
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421 | (5) |
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42 Nutrient Uptake and Yield Efficiency of Exotic Sweetpotato Cultivars Under an Organic Soil Management System in Abeokuta, Southwestern Nigeria |
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426 | (9) |
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PART V INNOVATIONS IN MARKETING, PROCESSING TECHNOLOGIES AND VALUE CHAIN MANAGEMENT FOR POTATO AND SWEETPOTATO |
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43 On the Road to Potato Processing in African Tropical Highlands |
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435 | (18) |
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44 Unlocking the Potential of the Potato Subsector in Kenya -- A Roadmap for Revitalizing the Subsector |
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453 | (9) |
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45 Potential of Processing Potato Flakes from Popular Kenyan Potato Varieties |
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462 | (8) |
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46 Assessing Potato Production Efficiency through Contract Farming in Kenya: The Case of Bomet and Molo Farmers |
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470 | (8) |
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47 Improvement of Processing Technology Research and Utilization of Sweetpotato and its Derived Foods in China and Rwanda |
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478 | (13) |
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48 Building a Sustainable Sweetpotato Value Chain: Experience from the Rwanda Sweetpotato Super Foods Project |
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491 | (7) |
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49 Sweetpotato Value Chain Development in West Africa: Matching Products with Farmer Typology |
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498 | (10) |
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50 Vacuum-frying Processing Technology Improves Quality Attributes of Fried Sweetpotato Chips |
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508 | (9) |
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51 Price Integration of Sweetpotato Marketing: Implications for an Efficient Marketing System in Nigeria |
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517 | (7) |
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52 Transaction Costs and Agricultural Household Supply: Response of Sweetpotato Farmers in Kwara State of Nigeria |
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524 | (9) |
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53 Promotion of Vitamin A-enriched Sweetpotato for Production by Small-scale Commercial Farmers in South Africa |
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533 | (8) |
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54 Getting the Equation Right: Engendering Sweetpotato Value Chains in East Africa |
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541 | (10) |
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PART VI EVIDENCE ON NUTRITIONAL VALUE, PRODUCT ACCEPTANCE AND CHANGING BEHAVIOURS CONCERNING SWEETPOTATO |
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55 Assessing Nutritional Value and Changing Behaviours Regarding Orange-fleshed Sweetpotato Use in Sub-Saharan Africa |
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551 | (29) |
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56 Effect of Sweetpotato Meal and Composite Sweetpotato-meal-based Diets on Performance of Weaner Rabbits |
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580 | (6) |
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57 Determining Availability of Nutrients in Sweetpotato Grown in the Kenyan Highlands Using In Sacco Degradability and In Vitro Digestibility |
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586 | (6) |
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58 Sweetpotato-based Formulation: An Alternative Food Blend for Complementary Feeding |
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592 | (10) |
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59 Evaluation of Sensory Quality Characteristics of Muffins Developed from Sweetpotato Flours |
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602 | (7) |
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| Index |
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609 | |
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