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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
08/10/2018 |
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Data da última atualização: |
08/10/2018 |
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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.; MURCIA, J. A. G.; FREITAS, S. T. de; CASTRO, P. R. de C e. |
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Afiliação: |
LUCAS BAIOCHI RIBOLDI, ESALQ; SABRINA HELENA DA CRUZ ARAÚJO, ESALQ; JULIAN ALEJANDRO GIRALDO MURCIA, ESALQ; SERGIO TONETTO DE FREITAS, CPATSA; PAULO ROBERTO DE CAMARGO E CASTRO, ESALQ. |
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Título: |
Abscisic acid (ABA) and 24-epibrassinolide regulate blossom-end rot (BER) development in tomato fruit under Ca2+ deficiency. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 12, n. 9, p. 1440-1446, 2018. |
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ISSN: |
1835-2707 |
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DOI: |
10.21475/ajcs.18.12.09.PNE1106 |
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Idioma: |
Inglês |
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Conteúdo: |
Calcium (Ca2+) is an essential macronutrient in plants, and low concentrations of this nutrient may result in development of a physiological disorder known as blossom-end rot (BER) in tomato. Hormones can regulate the accumulation of Ca2+ and, consequently, fruit susceptibilities to BER. The objective of this study was to evaluate the effect of gibberellin (GA), abscisic acid (ABA), and 24-epibrassinolide (EBL) on Ca2+ accumulation and BER incidence in tomato. The ?Tyna c.v? tomato plants were sprayed biweekly, during anthesis, with water (control), GA (28.9 ?mol L-1), ABA (90.8 ?mol L-1and 136.2 ?mol L-1), EBL (0.01 ?mol L-1 and 0.1 ?mol L-1). Treatments were applied until the physiological maturity of fruits of the first raceme in a completely randomized design and then, the following evaluations were performed: percentage of BER, growth evaluations, Ca2+ contents, physicalchemical parameters in fruits, stomatal conductance and transpiration. ABA and EBL treatments reduced BER incidence in a range of 6.6 to 9.0 %. The bioregulators used had no effect on plant growth, fruit diameter, length, or color. However, application of GA and EBL reduced titratable acidity and, the first also reduced soluble solids content in the fruit. All treatments, except GA treatment, increased Ca2+ contents in the fruits, when compared with the control. The highest fruit Ca2+ content was observed in plants treated with 0.01 ?mol L-1 of EBL. According to our results, ABA and EBL increased Ca2+ concentrations and decreased BER incidence and thus there is a great potential for their use in agriculture in tomato fruit. MenosCalcium (Ca2+) is an essential macronutrient in plants, and low concentrations of this nutrient may result in development of a physiological disorder known as blossom-end rot (BER) in tomato. Hormones can regulate the accumulation of Ca2+ and, consequently, fruit susceptibilities to BER. The objective of this study was to evaluate the effect of gibberellin (GA), abscisic acid (ABA), and 24-epibrassinolide (EBL) on Ca2+ accumulation and BER incidence in tomato. The ?Tyna c.v? tomato plants were sprayed biweekly, during anthesis, with water (control), GA (28.9 ?mol L-1), ABA (90.8 ?mol L-1and 136.2 ?mol L-1), EBL (0.01 ?mol L-1 and 0.1 ?mol L-1). Treatments were applied until the physiological maturity of fruits of the first raceme in a completely randomized design and then, the following evaluations were performed: percentage of BER, growth evaluations, Ca2+ contents, physicalchemical parameters in fruits, stomatal conductance and transpiration. ABA and EBL treatments reduced BER incidence in a range of 6.6 to 9.0 %. The bioregulators used had no effect on plant growth, fruit diameter, length, or color. However, application of GA and EBL reduced titratable acidity and, the first also reduced soluble solids content in the fruit. All treatments, except GA treatment, increased Ca2+ contents in the fruits, when compared with the control. The highest fruit Ca2+ content was observed in plants treated with 0.01 ?mol L-1 of EBL. According to our results, ABA and EBL increased Ca2+ co... Mostrar Tudo |
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Palavras-Chave: |
Acidez titulável; Balanço de cálcio; Biorregulador; Blossom-end rot; Condutância estomática; Podridão-da-flor; Transpiração. |
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Thesagro: |
Fisiologia Vegetal; Tomate. |
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Thesaurus Nal: |
Tomatoes. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02601naa a2200313 a 4500
001 2097020
005 2018-10-08
008 2018 bl uuuu u00u1 u #d
022 $a1835-2707
024 7 $a10.21475/ajcs.18.12.09.PNE1106$2DOI
100 1 $aRIBOLDI, L. B.
245 $aAbscisic acid (ABA) and 24-epibrassinolide regulate blossom-end rot (BER) development in tomato fruit under Ca2+ deficiency.$h[electronic resource]
260 $c2018
520 $aCalcium (Ca2+) is an essential macronutrient in plants, and low concentrations of this nutrient may result in development of a physiological disorder known as blossom-end rot (BER) in tomato. Hormones can regulate the accumulation of Ca2+ and, consequently, fruit susceptibilities to BER. The objective of this study was to evaluate the effect of gibberellin (GA), abscisic acid (ABA), and 24-epibrassinolide (EBL) on Ca2+ accumulation and BER incidence in tomato. The ?Tyna c.v? tomato plants were sprayed biweekly, during anthesis, with water (control), GA (28.9 ?mol L-1), ABA (90.8 ?mol L-1and 136.2 ?mol L-1), EBL (0.01 ?mol L-1 and 0.1 ?mol L-1). Treatments were applied until the physiological maturity of fruits of the first raceme in a completely randomized design and then, the following evaluations were performed: percentage of BER, growth evaluations, Ca2+ contents, physicalchemical parameters in fruits, stomatal conductance and transpiration. ABA and EBL treatments reduced BER incidence in a range of 6.6 to 9.0 %. The bioregulators used had no effect on plant growth, fruit diameter, length, or color. However, application of GA and EBL reduced titratable acidity and, the first also reduced soluble solids content in the fruit. All treatments, except GA treatment, increased Ca2+ contents in the fruits, when compared with the control. The highest fruit Ca2+ content was observed in plants treated with 0.01 ?mol L-1 of EBL. According to our results, ABA and EBL increased Ca2+ concentrations and decreased BER incidence and thus there is a great potential for their use in agriculture in tomato fruit.
650 $aTomatoes
650 $aFisiologia Vegetal
650 $aTomate
653 $aAcidez titulável
653 $aBalanço de cálcio
653 $aBiorregulador
653 $aBlossom-end rot
653 $aCondutância estomática
653 $aPodridão-da-flor
653 $aTranspiração
700 1 $aARAÚJO, S. H. da C.
700 1 $aMURCIA, J. A. G.
700 1 $aFREITAS, S. T. de
700 1 $aCASTRO, P. R. de C e
773 $tAustralian Journal of Crop Science$gv. 12, n. 9, p. 1440-1446, 2018.
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