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| 7. |  | MERIGUETE, I. L. de A. V.; ARAÚJO JÚNIOR, D. P. de; SEVALHO, E. de S.; MOURA, J. M. P.; ASTOLFI FILHO, S.; SILVA, C. G. N. da. Monitoramento na adoção de tecnologia agropecuária em Municípios-Hub no Estado do Amazonas. Revista GEINTEC, Aracaju, v. 10, n. 3, p. 5600-5613, jul./ago./set. 2020. Título em Inglês: Monitoring adoption of agricultural technology in Municipalities-Hub in the State of Amazonas.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
16/11/2023 |
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Data da última atualização: |
16/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
SILVA, A. P. G. da; SILVA, S. de M.; SILVA, G. C. da; LIMA, M. A. C. de; MENDONÇA R. M. N.; DANTAS, R. L.; SGANZERLA, W. G. |
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Afiliação: |
ALINE PRISCILLA GOMES DA SILVA, Department of Biosystems and Agricultural Engineering, Michigan State University,East Lansing, MI, USA; SILVANDA DE MELO SILVA, Federal University of Paraíba, Areia, PB; GERCIANE CABRAL DA SILVA, State Agricultural Research Corporation, Joao Pessoa, PB; MARIA AUXILIADORA COELHO DE LIMA, CPATSA; REJANE MARIA NUNES MENDONÇA, Federal University of Paraíba, Areia, PB; RENATO LIMA DANTAS, Federal University of Paraíba, Areia, PB; WILLIAM GUSTAVO SGANZERLA, UNICAMP. |
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Título: |
Cell wall and oxidative metabolisms of ripening Paluma guava under potassium fertilization. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal Of Agriculture And Food Research, v. 12, p. 100568, 2023. |
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DOI: |
https://doi.org/10.1016/j.jafr.2023.100568 |
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Idioma: |
Inglês |
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Conteúdo: |
Guava (Psidium guajava L.) is an important tropical fruit crop, and its nutritional status is directly associated with the quality and postharvest conservation of the fruits. Several agronomic events are involved with changes in the flavor and texture of the fruits, which are associated with the postharvest delay of fruit maturation, especially cell wall loosening. In this study, ?Paluma? guava trees were treated with three doses of potassium fertilization (50 [producer dose - control], 100, and 150 g K2O plant? 1) during the phenological phase of fruit growth, and the fruits were evaluated in three maturity stages (green yellow, yellow greenish, and yellow). The completely randomized design and fruits from three plants were used as replicates per treatment. The fruits were evaluated by the changes in pectin content and cell wall enzyme activity (pectin methylesterase and polygalacturonase) and oxidative metabolism enzymes (polyphenoloxidase and peroxidase activity). The results demonstrate that fruits from plants fertilized with 100 g K2O plan 1 were firmer (59.24 N), in which the yellow-greenish stage presented higher total (3.69%) and insoluble pectin (2.58%) contents. Furthermore, fruits at yellow-greenish stage presented lower pectin methylesterase (370.9 mU g? 1 FW) and polygalacturonase (110.1 mU g? 1 FW) cell wall enzyme activity, reflecting the better resistance of the cell wall and possibly longer postharvest life. As a practical application, the use of 100 g of K2O plant? 1 during production and harvesting of ?Paluma? guava at the yellow-greenish stage can maintain fruit firmness, improve quality, and reduce postharvest losses. MenosGuava (Psidium guajava L.) is an important tropical fruit crop, and its nutritional status is directly associated with the quality and postharvest conservation of the fruits. Several agronomic events are involved with changes in the flavor and texture of the fruits, which are associated with the postharvest delay of fruit maturation, especially cell wall loosening. In this study, ?Paluma? guava trees were treated with three doses of potassium fertilization (50 [producer dose - control], 100, and 150 g K2O plant? 1) during the phenological phase of fruit growth, and the fruits were evaluated in three maturity stages (green yellow, yellow greenish, and yellow). The completely randomized design and fruits from three plants were used as replicates per treatment. The fruits were evaluated by the changes in pectin content and cell wall enzyme activity (pectin methylesterase and polygalacturonase) and oxidative metabolism enzymes (polyphenoloxidase and peroxidase activity). The results demonstrate that fruits from plants fertilized with 100 g K2O plan 1 were firmer (59.24 N), in which the yellow-greenish stage presented higher total (3.69%) and insoluble pectin (2.58%) contents. Furthermore, fruits at yellow-greenish stage presented lower pectin methylesterase (370.9 mU g? 1 FW) and polygalacturonase (110.1 mU g? 1 FW) cell wall enzyme activity, reflecting the better resistance of the cell wall and possibly longer postharvest life. As a practical application, the use of 100 g of K2... Mostrar Tudo |
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Palavras-Chave: |
Amolecimento de frutas; Estágios de maturidade; Metabolismo oxidativo; Nutrição mineral. |
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Thesagro: |
Fruta Tropical; Goiaba; Pós-Colheita; Psidium Guajava; Qualidade. |
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Thesaurus NAL: |
Guavas; Postharvest physiology; Postharvest technology; Quality control. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02761naa a2200361 a 4500
001 2158430
005 2023-11-16
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jafr.2023.100568$2DOI
100 1 $aSILVA, A. P. G. da
245 $aCell wall and oxidative metabolisms of ripening Paluma guava under potassium fertilization.$h[electronic resource]
260 $c2023
520 $aGuava (Psidium guajava L.) is an important tropical fruit crop, and its nutritional status is directly associated with the quality and postharvest conservation of the fruits. Several agronomic events are involved with changes in the flavor and texture of the fruits, which are associated with the postharvest delay of fruit maturation, especially cell wall loosening. In this study, ?Paluma? guava trees were treated with three doses of potassium fertilization (50 [producer dose - control], 100, and 150 g K2O plant? 1) during the phenological phase of fruit growth, and the fruits were evaluated in three maturity stages (green yellow, yellow greenish, and yellow). The completely randomized design and fruits from three plants were used as replicates per treatment. The fruits were evaluated by the changes in pectin content and cell wall enzyme activity (pectin methylesterase and polygalacturonase) and oxidative metabolism enzymes (polyphenoloxidase and peroxidase activity). The results demonstrate that fruits from plants fertilized with 100 g K2O plan 1 were firmer (59.24 N), in which the yellow-greenish stage presented higher total (3.69%) and insoluble pectin (2.58%) contents. Furthermore, fruits at yellow-greenish stage presented lower pectin methylesterase (370.9 mU g? 1 FW) and polygalacturonase (110.1 mU g? 1 FW) cell wall enzyme activity, reflecting the better resistance of the cell wall and possibly longer postharvest life. As a practical application, the use of 100 g of K2O plant? 1 during production and harvesting of ?Paluma? guava at the yellow-greenish stage can maintain fruit firmness, improve quality, and reduce postharvest losses.
650 $aGuavas
650 $aPostharvest physiology
650 $aPostharvest technology
650 $aQuality control
650 $aFruta Tropical
650 $aGoiaba
650 $aPós-Colheita
650 $aPsidium Guajava
650 $aQualidade
653 $aAmolecimento de frutas
653 $aEstágios de maturidade
653 $aMetabolismo oxidativo
653 $aNutrição mineral
700 1 $aSILVA, S. de M.
700 1 $aSILVA, G. C. da
700 1 $aLIMA, M. A. C. de
700 1 $aMENDONÇA R. M. N.
700 1 $aDANTAS, R. L.
700 1 $aSGANZERLA, W. G.
773 $tJournal Of Agriculture And Food Research$gv. 12, p. 100568, 2023.
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