Navegando por Autor "Peressin, Valdemir Antonio"
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Item Flavor and color: ‘IAC 134 AL01’, the Campinas Agronomic Institute’s first orange-colored pulp sweet potato cultivar(2023) Peressin, Valdemir Antonio; Feltran, José Carlos; Rós, Amarílis B; Bernacci, Luís Carlos; Piotto, Fernando Angelo; Factor, Thiago Leandro; Lima Junior, Sebastião de; Fabri, Eliane GABSTRACT The sweet potato cultivar ‘IAC 134 AL01’ has tuberous roots with high β-carotene content, with the fresh pulp having an intermediate orange colour (based on international descriptors for the crop), which turns bright orange after cooking, and a mildly sweet taste. These roots have a long-irregular shape, red skin and are of medium size, weighing, on average, 300 g and measuring 14 x 6 cm. The first biofortified sweet potato cultivar of the Campinas Agronomic Institute reaches an average yield of 43.9 t/ha and is recommended for planting in the state of São Paulo to supply the domestic market and for export. RESUMO A cultivar de batata-doce ‘IAC 134 AL01’ tem raízes tuberosas de elevado teor em β-caroteno, com a polpa fresca de coloração (com base nos descritores internacionais para a cultura) laranja intermediário, gosto levemente doce e sabor característico da espécie, e coloração laranja intenso, após cocção. Estas raízes têm formato longo-irregular, pele vermelha, e são de tamanho intermediário, pesando, em média 300 g e medindo 14 x 6 cm. A primeira cultivar de batata doce biofortificada do Instituto Agronômico de Campinas alcança o rendimento médio de 43,9 t/ha, sendo recomendada para plantio no estado de São Paulo, visando abastecer o mercado interno e a exportação.Item New approaches using selection index in sweet potato breeding for biofortification(2023) Silva, Hellen Cristina da; Peressin, Valdemir Antonio; Feltran, José Carlos; Factor, Thiago Leandro; Fabri, Eliane Gomes; Bernacci, Luís Carlos; Nomura, João Vitor; Piotto, Fernando AngeloAbstract The objective of this research was to select orange-fleshed sweet potato clones with high stability, yield, and β-carotene content in different planting seasons, using a selection index. Joint analysis of experiments and analysis of responsiveness and stability by the GGE biplot method were performed for the variables yield, dry matter percentage, and root flesh color. The variables yield, dry matter, color and stability were used to estimate a selection index. The GGE biplot analysis indicated that there are differences among clones in stability for Yield. However, the percentage of dry matter and color of the roots show low interaction in the different environments. Because of that, stability for yield was included in the selection index, together with yield, dry matter, and root orange color intensity. Finally, the selection index based on stability, yield, dry matter percentage and root color was efficient in the selection of a new biofortified sweet potato cultivar. orangefleshed fleshed βcarotene β carotene seasons Yield However environments intensity Finally cultivarItem New approaches using selection index in sweet potato breeding for biofortification(2023) Silva, Hellen Cristina da; Peressin, Valdemir Antonio; Feltran, José Carlos; Factor, Thiago Leandro; Fabri, Eliane Gomes; Bernacci, Luís Carlos; Nomura, João Vitor; Piotto, Fernando AngeloAbstract The objective of this research was to select orange-fleshed sweet potato clones with high stability, yield, and β-carotene content in different planting seasons, using a selection index. Joint analysis of experiments and analysis of responsiveness and stability by the GGE biplot method were performed for the variables yield, dry matter percentage, and root flesh color. The variables yield, dry matter, color and stability were used to estimate a selection index. The GGE biplot analysis indicated that there are differences among clones in stability for Yield. However, the percentage of dry matter and color of the roots show low interaction in the different environments. Because of that, stability for yield was included in the selection index, together with yield, dry matter, and root orange color intensity. Finally, the selection index based on stability, yield, dry matter percentage and root color was efficient in the selection of a new biofortified sweet potato cultivar. orangefleshed fleshed βcarotene β carotene seasons Yield However environments intensity Finally cultivar