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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
16/11/2018 |
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Data da última atualização: |
16/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBOLDI, L. B.; ARAÚJO, S. H. da C.; FREITAS, S. T. de; CASTRO, P. R. de C. e. |
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Afiliação: |
LUCAS BAIOCHI RIBOLDI; SABRINA HELENA DA CRUZ ARAÚJO; SERGIO TONETTO DE FREITAS, CPATSA; PAULO ROBERTO DE CAMARGO E CASTRO. |
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Título: |
Incidence of blossom-end rot in elongated tomato fruit. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Botany, v. 96, n. 10, p. 663-673, 2018. |
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DOI: |
10.1139/cjb-2018-0021 |
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Idioma: |
Inglês |
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Conteúdo: |
Blossom-end rot (BER) is a physiological disorder that can affect 100% of the fruit crop depending on the genotype. Tomato varieties with elongated fruit usually have a greater susceptibility to BER than other varieties. To evaluate and identify the possible physiological and morphological characteristics related to the onset of BER development, four varieties of long-shape tomato fruit with different susceptibility to BER: ?San Marzano,? ?Banana Legs,? ?Roma,? and ?Mini-Roma? were examined. Our results show that ?San Marzano? and ?Banana Legs? (elongated fruit) had a higher incidence of BER and lower Ca2+ concentration in the distal fruit tissue. ?San Marzano? (the most elongated fruit) presented higher electrolyte leakage in the distal fruit tissue. By comparison, ?Roma? and ?Mini-Roma? (less elongated fruit) were less susceptible to BER and had a higher ratio for proximal/distal fruit Ca2+ and a lower distal cell-wall bound content of Ca2+. Additionally, xylem functionality (vessels transporting water and solutes) in the distal fruit tissue was also higher in these more-tolerant varieties. These results support the theory that total fruit content of Ca2+ is not the only factor determining fruit susceptibility to BER, but rather a balance between physiological and morphological factors that influence Ca2+ transport and allocation in the fruit. |
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Palavras-Chave: |
Blossom-end rot; Podridão floral. |
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Thesagro: |
Doença; Fisiologia Vegetal; Tomate. |
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Thesaurus Nal: |
Tomatoes. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
null
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Registro original: |
Embrapa Semiárido (CPATSA) |
