Molecular Plant Breeding 2024, Vol.15, No.6, 379-390 http://genbreedpublisher.com/index.php/mpb 384 Figure 2 Sweet potato resources Table 2 Statistics of disease-infected plants in sweet potato resources Name of sweet potato resource Average infection rate CH60 3.2 CH637 1.6 CP37 3.8 CP142 4.9 CP158 2.9 CJ3038 2.4 CJ3056 2.6 PT77 11.2 PT92 8.1 PT122 22.9 FJ3042 14.1 FJ3044 8.9 BX3001 10.2 BX3001 3.1 QX3009 1.6 5.3 Case study: enhancing nutritional quality in African varieties Enhancing the nutritional quality of sweet potato varieties, particularly in Africa, is crucial for addressing malnutrition and improving food security. Breeding programs have increasingly focused on developing varieties that are rich in essential nutrients such as vitamin A. The International Potato Center (CIP) and its partners have been responsive to development indicators like poverty, malnutrition, and gender, aiming to create varieties that can alleviate these issues (Ojwang et al., 2023). By targeting market segments with high rates of stunting among children and anemia among women, these programs aim to maximize the nutritional impact of new sweet potato varieties. 5.4 Insights from case studies These sweet potato breeding case studies highlight the significant role of targeted breeding programs in addressing specific agricultural challenges. In Wenzhou, the establishment of a resistance identification nursery effectively tackled the region’s sweet potato basal rot issue, identifying superior varieties such as CH60 and QX3009. This approach underscores the importance of localized breeding efforts, which address regional disease problems and significantly enhance crop sustainability and productivity. Similarly, efforts to breed resistance to sweet potato
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