Diagnóstico Da Qualidade De Maçãs No Mercado Varejista Brasileiro

Argenta, Luiz Carlos; Vieira, Marcelo José; Souza, Francielle de; Pereira, Walter Sérgio Pinto; Edagi, Fernando Kazuhiro

doi:10.1590/0100-2945-047/14

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…There was an increase in the average fruit mass as a function of MM treatment, but BA use did not show superiority in relation to Control (without thinning). These results are not in Table 7 agreement with those found in the study by Cline et al [27], in which the use of BA as thinner was efficient, generating an increase in fruit size, and results still contradict the hypothesis developed by the authors, since Table 7 shows that there was no significant change in size or number of cells as a function of treatments.…”

Section: Resultscontrasting

confidence: 66%

Influence of Post-Flowering Chemical Thinning on Development and Fruit Quality of 'Fuji Suprema' and 'Maxigala' Apple Trees

Gabardo

Kretzchmar

Petri³

et al. 2019

JEAI

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Aims: Evaluate possible alterations in the development, anatomy and quality of fruits from 'Maxi Gala' and 'Fuji Suprema' apple plants treated with Metamitrom (MM) and Benzyladenine (BA) alone or in combination, applied at different stages of fruit development in the Midwestern region of the state of Santa Catarina. Study Design: The experiment was arranged in a randomized block design with five replicates. Place and duration of Study: The experiment was carried out in the municipality of Caçador-SC, Brazil, during the growing season of 2016/2017. Methodology: Two products, BA (with hormonal action) and MM (photosynthesis inhibitor) were applied individually or in a tank mix in post-flowering periods (in fruits of 5-10 mm and 15-20 mm in equatorial diameter), which were compared with plants with no thinning and manual thinning of both cultivars. Treatments were as follows: Control (no thinning) MM, BA, MM + BA (in fruits of 5-10 mm in diameter); MM, BA, MM + BA, manual thinning (in fruits of 15-20 mm in diameter). The phenological stage of F2 (Full flowering (FF) was observed on September 28, 2016 for both cultivars. Evaluations of the anatomical characteristics of fruits at the time of harvest did not show any alteration in cell size (mean cell area - μm2) and cell density (number of cells per fruit section area); the mean fruit mass was higher in MM 350 mg L-1 (5-10 mm), MM 350 mg L-1 + BA 40 mg L-1 (5-10 mm), and MM 350 mg L-1 (15-20mm) treatments. In the 'Fuji Suprema' cultivar, except for control treatments, MM 350 mg L-1 (5-10mm) and BA 80 mg L-1 (5-10mm), a significant reduction in production was observed (kg plant-1 and fruit-1). While in 'MaxiGala', all the thinning treatments reduced yield per plant. The cultural thinning practice, fruit load management, adapting the number of fruits according to plant size is the most important factor that producers are able to influence. Thinning reduces fruit load in the plant, which allows remaining fruits the possibility of greater growth and size gain. The combination of MM + BA is efficient in the thinning of apple fruits, especially when applied at the beginning of fruit development (5-10 mm in diameter). The application of chemical thinners, such as MM and BA, may influence the early stages of fruit development.

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Section: Resultscontrasting

confidence: 66%

Influence of Post-Flowering Chemical Thinning on Development and Fruit Quality of 'Fuji Suprema' and 'Maxigala' Apple Trees

Gabardo

Kretzchmar

Petri³

et al. 2019

JEAI

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“…Long periods of storage time and exposure on market shelves can cause 'Fuji' apples to have high loss rates, from 12 to 20%, depending on the time of year and region of cultivation in Brazil (Argenta et al, 2015). Penicillium expansum Link, 1809 (blue mold) and Cryptosporiopsis perennans (Zeller & Childs) Wollenweber, 1939 (bull's eye rot) are among the most significant causes for rot in 'Fuji' apples.…”

Section: Introductionmentioning

confidence: 99%

Essential oils for the postharvest control of blue mold and quality of 'Fuji' apples

Vieira

Steffens

Argenta

et al. 2018

Pesq. agropec. bras.

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The objective of this work was to evaluate the effect of rosemary, cinnamon, citronella grass, and clove essential oils on the in vitro growth of Penicillium expansum, on the diameter of blue mold lesions, and on the physical and chemical attributes of 'Fuji' apples stored under refrigeration for different periods of time. The compositions of the essential oils were determined, and their effects on the growth inhibition, number, and viability of fungal spores in vitro were evaluated at 0, 100, and 1,000 μL L-1 oil concentrations. At postharvest, evaluations were performed for fruit treated with 0, 50, 100, and 500 μL L-1 essential oil and kept under refrigeration for 30 days, and for fruit treated with 0, 100, and 500 μL L-1 oil and kept under refrigeration for two days. The essential oils - eucalyptol (rosemary), eugenol (cinnamon), citronellal (citronella), and eugenol (clove) - reduce the growth, number, and viability of P. expansum spores 24 hours after the induction to germination, as well as the diameter of blue mold lesions in apples, except for citronella oil at 500 μL L-1 after 30 days of cold storage. There are no changes in the physicochemical attributes of apples, treated with different concentrations of the oils after refrigeration for five months, followed by seven days at room temperature.

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“…Quando os níveis de firmeza são inferiores a 12 lb, observa-se redução da crocância e da suculência dos frutos e aumento significativo da incidência de 'polpa farinácea', que são características percebidas de forma negativa pelos consumidores (HARKER et al, 2002). Segundo Argenta et al (2015), a menor firmeza de polpa em maçãs não resulta apenas em menor apreciação sensorial pelos consumidores, mas também favorece a incidência de escurecimento da polpa e aumenta a vulnerabilidade dos frutos a danos mecânicos e podridões.…”

Section: Resultsunclassified

Estádio de maturação para colheita de maçãs ‘SCS426 Venice’

Betinelli

Martin

Argenta

et al. 2017

RAC

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Resumo – Este trabalho teve como objetivo identificar índices de maturação para o ponto ideal de colheita de maçãs ‘SCS426 Venice’ destinadas à comercialização imediata ou ao armazenamento. Os frutos foram colhidos semanalmente, em Fraiburgo, SC, no período de 144 a 172 dias após a plena floração (DAPF); avaliados um dia após a colheita, após armazenagem por 240 dias sob atmosfera do ar (AA) a 0,5°C e 265 dias sob atmosfera controlada (AC) a 0,7°C. Índices de maturação para maçãs ‘SCS426 Venice’ destinadas à comercialização imediata variam de 15,3 a 16,5 lb para firmeza de polpa, 12,9% a 13,4% para teor de sólidos solúveis (SS), 0,291% a 0,338% para acidez titulável (AT), 8,2 a 9,0 para índice de amido (escala 1 a 9) e 3,7 a 4,3 para índice de cor de fundo (escala 1 a 5). Índices de maturação para maçãs ‘SCS426 Venice’ destinadas à armazenagem (AA e AC) variam de 17,2 a 18,0 lb para firmeza de polpa, 11,8% a 12,5% para teor de SS, 0,350% a 0,356% para AT, 3,0 a 5,5 para índice de amido e 2,1 a 3,1 para índice de cor de fundo.

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Diagnóstico Da Qualidade De Maçãs No Mercado Varejista Brasileiro

Cited by 11 publications

References 12 publications

Influence of Post-Flowering Chemical Thinning on Development and Fruit Quality of 'Fuji Suprema' and 'Maxigala' Apple Trees

Influence of Post-Flowering Chemical Thinning on Development and Fruit Quality of 'Fuji Suprema' and 'Maxigala' Apple Trees

Essential oils for the postharvest control of blue mold and quality of 'Fuji' apples

Estádio de maturação para colheita de maçãs ‘SCS426 Venice’

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