Maturação, qualidade e queda pré-colheita de maçãs 'imperial gala' em função da aplicação de aminoetoxivinilglicina

Petri, José Luiz; Hawerroth, F. J.; Leite, Gabriel Berenhauser

doi:10.1590/s0006-87052010000300011

Cited by 8 publications

(4 citation statements)

References 21 publications

(5 reference statements)

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“…In the 2015/2016 season, the fruits that received a pre-harvest application of AVG in single or split rates had a lower SS content, followed by those subjected to the split application of AVG combined with ethephon, while the fruits of the control treatment showed higher SS values. A lower concentration of SS in 'Gala' apples sprayed with AVG was also reported by Petri et al (2010), who used a single rate of AVG, and by Hawerroth et al (2011), who applied AVG in single (120 g ha -1 30 DBAH) and split (60 g ha -1 30 DBAH + 60 g ha -1 14 DBAH) rates. The observed response may be associated with a lower starch hydrolysis in apples sprayed with AVG due to a reduction in the ethylene production rate (Brackmann et al, 2015a).…”

Section: Resultssupporting

confidence: 61%

Maturation of 'Baigent' apples protected by anti-hail nets and sprayed with aminoethoxyvinylglycine and ethephon

Soethe

Steffens

Hawerroth

et al. 2021

Pesq. agropec. bras.

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The objective of this work was to evaluate the effect of pre-harvest spraying with aminoethoxyvinylglycine (AVG) and ethephon on fruit maturation of 'Baigent' apple (Malus domestica) trees grown under black anti-hail nets. The treatments were: control; 125 mg L-1 AVG, sprayed 30 days before anticipated harvest time (DBAH); 120 mg L-1 ethephon 7 DBAH; 62.5 mg L-1 + 62.5 mg L-1 AVG 30 and 20 DBAH; and 62.5 mg L-1 + 62.5 mg L-1 AVG 30 and 20 DBAH + 120 mg L-1 ethephon 7 DBAH. Fruit were harvested in the commercial harvest of the control treatment (harvest 1) and 14 days later (harvest 2). Yellowing and loss of firmness were delayed by the treatments with AVG and accelerated by that with ethephon. AVG application in a single rate of 125 mg L-1 30 DBAH or in two split rates of 62.5 mg L-1 30 and 20 DBAH delays fruit maturation. The pre-harvest application of AVG in a single rate reduces the red color of the fruits, which is not affected by application in split rates, combined or not with ethephon, regardless of the date of harvest.

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Section: Resultssupporting

confidence: 61%

Maturation of 'Baigent' apples protected by anti-hail nets and sprayed with aminoethoxyvinylglycine and ethephon

Soethe

Steffens

Hawerroth

et al. 2021

Pesq. agropec. bras.

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“…The solubility of cell wall components, such as pectins, was likely responsible for the high acidity observed in the NAA-treated fruit, as they are mainly composed of galacturonic acid and can increase the acidity of the juice [82] (a decrease in titratable acidity could be caused by the utilization of a high rate of oxidation for various organic acids during respiration or sugar conversion [83]). Applications of AVG or 1-MCP have been reported by previous studies to delay the synthesis of anthocyanins in the epidermis of Pink Lady [49], Imperial Gala [84], Royal Gala [34], and Brookfield [42] apples because of the delayed development of red blush and reduced skin redness. In addition, when Brookfield apples were treated with NAA, the red color index was higher, while it was lower with an NAA + AVG treatment, and this delayed the process of the development of skin color to become red [42].…”

Section: Discussionmentioning

confidence: 98%

Enhancing Anna Apples’ Productivity, Physico-Chemical Properties, and Marketability Using Sprays of Naphthalene Acetic Acid and Inhibitors of Ethylene for Alleviating Abiotic Stresses

et al. 2023

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In order to improve the resistance of apples to stresses (abiotic stresses) during hot and dry summers to enhance their productivity and marketability, Anna apple trees were treated with aminoethoxyvinylglycine (AVG), 1-methlcyclopropene (1-MCP), and naphthalene acetic acid (NAA), alone, or in combination, in two successive seasons. All treatments significantly increased the yield per tree, the average fruit volume, fruit diameter, and fruit weight compared to the control (growing under hot and dry summers without any treatments). All treatments significantly reduced the apple size, total soluble solid (TSS) content, anthocyanin content, carotenoid content, total sugar solids, and sugar percentage, and they led to fruit softening, loss of fruit weight, firmness, breakdown percentage, as well as a decreased polyphenol oxidase and peroxidase activity at one-week post-harvest (except for 20-ppm NAA) in comparison with the control. Trees treated with 320-ppm 1-MCP + 250-ppm AVG exhibited maximum yield per tree, fruit firmness, and no-reducing sugars or starch. On the other hand, the 20-ppm NAA produced the maximum TSS content, total sugars, with a reduced sugar percentage, carotenoid and anthocyanin fruit content, and (TSS)/acidity ratio. The application of 320-ppm 1-MCP + 250-ppm AVG effectively delayed the harvest for 14 days compared to the control. Our results show that the sprays of NAA and inhibitors of ethylene had a significant effect on the productivity and marketability of Anna apples under abiotic stresses.

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“…This demonstrates that AVG had a negative effect on this characteristic. Other studies have also reported that AVG application delayed the synthesis of anthocyanins in the epidermis of 'Pink Lady' apples (Whale et al 2008) and 'Imperial Gala' (Petri et al 2010). AVG inhibit ethylene synthesis, which resulted in lower red skin coloration in 'Gala' apples (Amarante et al 2010;Scolaro et al 2015).…”

Section: Postharvest Quality Of 'Brookfield' Applementioning

confidence: 93%

Postharvest quality of ‘Brookfield’ apple field-treated with naphthalene acetic acid alone or combined with other growth regulators

et al. 2020

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The Gala cultivars represent about 65% of the Brazilian apple production, however, it has a short harvest period, making necessary to use technologies that anticipate or delay fruit maturation. A widely used technology is the preharvest application of growth regulators. The objective of this investigation was to evaluate the effect of preharvest application of naphthalene acetic acid (NAA) combined with aminoethoxyvinylglycine (AVG) and 2-chloroethylphosphonic acid (Ethephon), on the quality of 'Brookfield' apple at harvest and after eight months controlledatmosphere (CA) (1.2 kPa O 2 and 2.0 kPa CO 2) storage followed by seven days of shelf life at 20 °C. The treatments were: [1] Control: application of water only; [2] NAA (40 g.ha-1); [3] NAA (40 g•ha-1) plus Ethephon (2.0 L•ha-1 24% of active ingredient), and [4] NAA (40 g•ha-1) plus AVG (0.83 kg.ha-1 15% of active ingredient). At harvest, fruit treated with NAA presented a higher level of starch degradation, ethylene production and respiration rate. Fruit treated with NAA plus AVG maintained better quality after eight months under CA storage plus seven days of shelf life, due to higher healthy fruit amount and higher flesh firmness, but this combination reduced the red skin color index. Additionally, NAA plus Ethephon may be an alternative to maintain the quality of 'Brookfield' apple during storage in comparison to the application of NAA isolated.

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Maturação, qualidade e queda pré-colheita de maçãs 'imperial gala' em função da aplicação de aminoetoxivinilglicina

Cited by 8 publications

References 21 publications

Maturation of 'Baigent' apples protected by anti-hail nets and sprayed with aminoethoxyvinylglycine and ethephon

Maturation of 'Baigent' apples protected by anti-hail nets and sprayed with aminoethoxyvinylglycine and ethephon

Enhancing Anna Apples’ Productivity, Physico-Chemical Properties, and Marketability Using Sprays of Naphthalene Acetic Acid and Inhibitors of Ethylene for Alleviating Abiotic Stresses

Postharvest quality of ‘Brookfield’ apple field-treated with naphthalene acetic acid alone or combined with other growth regulators

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