Predição de "bitter pit" em maçãs 'gala' Por meio da infiltração dos frutos com magnésio

Amarante, Cassandro Vidal Talamini do; Ernani, Paulo Roberto; Steffens, Cristiano André

doi:10.1590/s0100-29452009000400008

Cited by 9 publications

(6 citation statements)

References 8 publications

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“…De acordo com Ferguson & Watkins (1989), frutos com baixos teores de Ca e elevados valores das relações K/Ca, N/Ca, (K+Mg)/Ca e (K+Mg+N)/Ca apresentaram maior predisposição ao "bitter pit". Amarante et al (2009a) relatam que o risco de ocorrência de "bitter pit" pode ser avaliado por meio de análise mineral dos frutos.…”

Section: Resultsunclassified

“…baixa correlação canônica e baixa TDP, o que indica que, apesar de o Ca ser o elemento mineral diretamente relacionado à ocorrência de "bitter pit", não é o melhor atributo para discriminar frutos com a presença desse distúrbio fisiológico. Resultados semelhantes foram reportados por Benavides et al (2002) e Amarante et al (2006aAmarante et al ( , 2009a, que verificaram que o Ca isoladamente não é o melhor parâmetro para discriminar frutos com e sem "bitter pit", mas sim as relações K/Ca, Mg/Ca ou (K+Mg)/Ca, dependendo da cultivar.…”

Section: Resultsunclassified

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Atributos fisiológicos, físico-químicos e minerais associados à ocorrência de "bitter pit" em maçãs

Miqueloto

Amarante

Steffens

et al. 2011

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi identificar os atributos fisiológicos, físico-químicos e minerais associados à ocorrência pós-colheita de "bitter pit" em maçãs 'Fuji' e 'Catarina'. Os frutos foram colhidos, armazenados por 120 dias a 1°C, com 90-95% de umidade relativa e, em seguida, divididos em lotes com ou sem sintoma de "bitter pit". Maçãs 'Catarina' apresentaram maior incidência e severidade de "bitter pit", em comparação a 'Fuji'. Em ambas as cultivares, os frutos com "bitter pit" apresentaram maior produção de etileno, respiração e acidez titulável, e menor pH, firmeza de polpa, textura da casca e da polpa e percentagem de cor vermelha na casca. Os frutos com "bitter pit" também apresentaram menores teores de Ca e maiores valores das relações K/Ca, N/Ca, (K+Mg)/Ca e (K+Mg+N)/Ca nos tecidos da casca e da polpa da região pistilar. A análise canônica discriminante indica que os atributos mais adequados para discriminar frutos com e sem "bitter pit" são força para penetração na polpa e relação K/Ca na polpa, em maçãs 'Fuji', e acidez titulável e relação K/Ca na casca, em maçãs 'Catarina'.Termos para indexação: Malus domestica, análise canônica discriminante, distúrbio fisiológico, estado nutricional, deficiência de cálcio, pós-colheita. Physiological, physicochemical and mineral attributes associated with the occurrence of bitter pit in applesAbstract -The objective of this work was to identify the physiological, physicochemical, and mineral attributes associated with the occurrence of bitter pit in 'Fuji' and 'Catarina' apples. Fruit were harvested, stored in air at 1°C and 90-95% relative humidity for 120 days, and, then, divided into lots with or without bitter pit symptoms. 'Catarina' apples had higher incidence and severity of bitter pit, in comparison to 'Fuji'. In both cultivars, fruit with bitter pit had higher ethylene production, respiration, and titratable acidity, and lower pH, flesh firmness, skin and pulp textures, and percentage of red skin area. Fruit with bitter pit also had lower Ca content and higher values of K/Ca, N/Ca, (K+Mg)/Ca, and (K+Mg +N)/Ca ratios in the skin and flesh tissues of the blossom-end. Canonical discriminant analysis indicates that the best attributes to discriminate between fruit with or without bitter pit are force to penetrate the flesh and K/Ca ratio in the pulp, in 'Fuji' apples, and titratable acidity and K/Ca ratio in the skin, in 'Catarina' apples.

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Section: Resultsunclassified

Atributos fisiológicos, físico-químicos e minerais associados à ocorrência de "bitter pit" em maçãs

Miqueloto

Amarante

Steffens

et al. 2011

Pesq. agropec. bras.

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“…Mineral analysis of fruit before harvesting is a complementary measure to predict the risk of fruit deterioration due to physiological disorders during storage (AMARANTE et al, 2009). This method is based in part on the positive role of calcium (Ca) and antagonistic role of magnesium (Mg) and potassium (K) on the maintenance of the integrity of cell membranes (FREITAS et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The advantage of this method is the possibility of orchards segregation as a function of nutritional balance prior to harvesting. However, the use of this technique is limited by the high cost of mineral analyses and the low capacity to predict the incidence of physiological disorders during storage (AMARANTE et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Relationship between dry matter content at harvest and maturity index and post-harvest quality of ‘Fuji’ apples

Vieira

Argenta²,

Mattheis³

et al. 2018

Rev. Bras. Frutic.

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Two experiments were carried out to evaluate the relationship between dry matter content (DMC) and maturity index of ‘Fuji’ apple fruit sports (‘Mishima’, ‘Fuji Select’ and ‘Fuji Suprema’) during the final stage of fruit growth, and the relationship between DMC at harvest and the post-harvest fruit quality. Fruit were harvested from orchards of three regions (Caçador, São Joaquim and Vacaria), on two rootstocks (M9 and Marubakaido with M9 interstock). In experiment 1 (2014), fruit were periodically sampled beginning 83 days before the commercial harvest period. In experiment 2, fruit were harvested at optimum maturity for long-term storage and stored in air at 0.5 ºC (2014) or after optimum maturity for long-term storage and stored in controlled atmosphere at 0.7 ºC (2014 and 2015). Apple fruit maturity on the tree was characterized by decreased flesh firmness and increased starch index and soluble solids content (SS) and by a small change in DMC. DMC at harvest was correlated with flesh firmness and SS in one of two years, but DMC was not correlated with the incidence of disorders after storage. The results show that DMC at harvest is not suitable as a maturity index of ‘Fuji’ apples, and its use as a post-harvest quality predictor is not consistent between crop years.

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“…Fruit were stored during three months for 'Gala' and five physiological disorders, which in turn require farmers interference by adding external inputs and high-cost technologies in the agroecosystem (GONÇALVES; BOFF, 2002). The main physiological disorders of apple orchards are lack of calcium, bitter pit, lenticels breakdown, jonathan spot, internal breakdown, watercore and stem-end splitting (CURRY et al, 2008;AMARANTE, et al, 2009;AMARANTE et al, 2010). The biological disorders that cause major damage are the pests [South American fruit fly (Anastrepha fraterculus), the red mite (Panonychus ulmi)] and diseases [apple scab (Venturia inaequalis), bitter rot (Glomerella cingulata) and rotting (Phytophthora cactorum)].…”

Section: Introductionmentioning

confidence: 99%

Apple biological and physiological disorders in the orchard and in postharvest according to production system

Martins

Hoffmann

Rombaldi³

et al. 2013

Rev. Bras. Frutic.

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The study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and degeneration ('Gala'), and bitter pit ('Fuji' and 'Catarina'). The incidence of postharvest rot was not influenced by apple production system.

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Predição de "bitter pit" em maçãs 'gala' Por meio da infiltração dos frutos com magnésio

Cited by 9 publications

References 8 publications

Atributos fisiológicos, físico-químicos e minerais associados à ocorrência de "bitter pit" em maçãs

Atributos fisiológicos, físico-químicos e minerais associados à ocorrência de "bitter pit" em maçãs

Relationship between dry matter content at harvest and maturity index and post-harvest quality of ‘Fuji’ apples

Apple biological and physiological disorders in the orchard and in postharvest according to production system

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