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      Maturation of 'Baigent' apples protected by anti-hail nets and sprayed with aminoethoxyvinylglycine and ethephon Translated title: Maturação de maçãs 'Baigent' produzidas sob tela antigranizo e pulverizadas com aminoetoxivinilglicina e etefon

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          Abstract

          Abstract 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.

          Translated abstract

          Resumo O objetivo deste trabalho foi avaliar o efeito da pulverização pré-colheita com aminoetoxivinilglicina (AVG) e etefon sobre a maturação dos frutos de macieiras 'Baigent' (Malus domestica) produzidas sob tela antigranizo preta. Os tratamentos foram: controle; 125 mg L-1 de AVG, aplicados 30 dias antes da colheita dos frutos não tratados (DAPC); 120 mg L-1 de etefon 7 DAPC; 62,5 mg L-1 + 62,5 mg L-1 de AVG 30 e 20 DAPC; e 62,5 mg L-1 + 62,5 mg L-1 de AVG 30 e 20 DAPC + 120 mg L-1 de etefon 7 DAPC. Os frutos foram colhidos na colheita comercial do tratamento-controle (colheita 1) e após 14 dias (colheita 2). O amarelecimento e a perda de firmeza foram retardados pelos tratamentos com AVG e acelerados pelo com etefon. A aplicação de AVG em dose única de 125 mg L-1 30 DAPH ou em duas doses de 62,5 mg L-1 30 e 20 DAPH retarda a maturação dos frutos. A aplicação pré-colheita de AVG em dose única reduz a coloração vermelha dos frutos, que não é afetada pela aplicação em dose dividida, combinada ou não com etefon, independentemente da data de colheita.

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          The influence of protective netting on tree physiology and fruit quality of apple: A review

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            Effects of position on canopy and harvest time on fruit physico-chemical and antioxidant properties in different apple cultivars

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              Formation of flavonoids, especially anthocyanin and chlorogenic acid in ‘Jonagold’ apple skin: influences of growth regulators and fruit maturity

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                Author and article information

                Journal
                pab
                Pesquisa Agropecuária Brasileira
                Pesq. agropec. bras.
                Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira (Brasília, DF, Brazil )
                0100-204X
                1678-3921
                2021
                : 56
                : e02439
                Affiliations
                [2] Vacaria RS orgnameEmbrapa Uva e Vinho, Estação Experimental de Fruticultura de Clima Temperado Brazil fernando.hawerroth@ 123456embrapa.br
                [1] Lages Santa Catarina orgnameUniversidade do Estado de Santa Catarina orgdiv1Centro de Ciências Agroveterinárias Brazil crisoethe@ 123456gmail.com
                Article
                S0100-204X2021000102303 S0100-204X(21)05600002303
                10.1590/s1678-3921.pab2021.v56.02439
                ac9b28b1-0c6f-4f98-9c8e-db0be25084ef

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 12 February 2021
                : 21 July 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 31, Pages: 0
                Product

                SciELO Brazil

                Categories
                Plant Physiology

                shading,ethylene,fruit harvest management,plant growth regulators,Malus domestica,etileno,escalonamento da colheita,fitorreguladores de crescimento,sombreamento

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