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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
20/06/2018 |
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Data da última atualização: |
20/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARGENTA, L. C.; SCOLARO, A. M. T.; AMARANTE, C. V. T.; VIEIRA, M. J. |
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Título: |
Preharvest treatment of 'Gala' apples with 1-MCP and AVG - II: effects on fruit quality after storage. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
ACTA HORTICULTURAE, Cartagena, Murcia, Spain, n. 1194, p. 127-133, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of preharvest treatment with 1-methylcyclopropene (1-MCP) in
water on post-storage apple fruit quality were examined in comparison to that of
aminoethoxyvinylglycine (AVG). 1-MCP (150 mg L-1) and AVG (124 mg L-1) were
sprayed to ?Imperial Gala? and ?Royal Gala? apple trees, 7 and 28 days before
commercial fruit harvest maturity, respectively, during four consecutive years.
Untreated trees were used as control. Fruit were harvested weekly, during four weeks
from the 7th day after 1-MCP spray and stored in regular air at 0.5°C for 120 days, or in
controlled atmosphere (CA) at 0.7°C for 210 days, plus 7 days at 22°C. Regression
analyzes for fruit quality attributes as a function of harvest date were performed to
estimate post-storage firmness, soluble solids content, acidity and disorder indices
for the estimated harvest dates when fruit of all three preharvest treatments achieved
the same firmness of 71.1 N, at harvest. Preharvest 1-MCP and AVG treatments slowed
softening and decreased severity of physiological disorders and decay associated to
the delay of harvest date, depending on orchard, cultivar, and storage atmosphere.
However, sprayable 1-MCP and AVG did not affect rates of fruit softening and internal
browning development following air storage and did not affect or reduce rates of fruit
softening and internal browning development following CA storage, if treated and
untreated apple fruit were harvested at the same firmness. Sprayable 1-MCP and AVG
did not reduce fruit cracking and decay following storage when fruit of these two
treatments were harvested with same firmness of control fruit (71.1 N). Effects of AVG
were similar to or greater than those of sprayable 1-MCP for retent. MenosThe effects of preharvest treatment with 1-methylcyclopropene (1-MCP) in
water on post-storage apple fruit quality were examined in comparison to that of
aminoethoxyvinylglycine (AVG). 1-MCP (150 mg L-1) and AVG (124 mg L-1) were
sprayed to ?Imperial Gala? and ?Royal Gala? apple trees, 7 and 28 days before
commercial fruit harvest maturity, respectively, during four consecutive years.
Untreated trees were used as control. Fruit were harvested weekly, during four weeks
from the 7th day after 1-MCP spray and stored in regular air at 0.5°C for 120 days, or in
controlled atmosphere (CA) at 0.7°C for 210 days, plus 7 days at 22°C. Regression
analyzes for fruit quality attributes as a function of harvest date were performed to
estimate post-storage firmness, soluble solids content, acidity and disorder indices
for the estimated harvest dates when fruit of all three preharvest treatments achieved
the same firmness of 71.1 N, at harvest. Preharvest 1-MCP and AVG treatments slowed
softening and decreased severity of physiological disorders and decay associated to
the delay of harvest date, depending on orchard, cultivar, and storage atmosphere.
However, sprayable 1-MCP and AVG did not affect rates of fruit softening and internal
browning development following air storage and did not affect or reduce rates of fruit
softening and internal browning development following CA storage, if treated and
untreated apple fruit were harvested at the same firmness. Sprayable 1-MCP and AVG
did not ... Mostrar Tudo |
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Palavras-Chave: |
ethylene; firmness; harvest date; internal browning; Malus × domestica. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02400naa a2200217 a 4500
001 1127323
005 2018-06-20
008 2018 bl uuuu u00u1 u #d
100 1 $aARGENTA, L. C.
245 $aPreharvest treatment of 'Gala' apples with 1-MCP and AVG - II$beffects on fruit quality after storage.$h[electronic resource]
260 $c2018
520 $aThe effects of preharvest treatment with 1-methylcyclopropene (1-MCP) in water on post-storage apple fruit quality were examined in comparison to that of aminoethoxyvinylglycine (AVG). 1-MCP (150 mg L-1) and AVG (124 mg L-1) were sprayed to ?Imperial Gala? and ?Royal Gala? apple trees, 7 and 28 days before commercial fruit harvest maturity, respectively, during four consecutive years. Untreated trees were used as control. Fruit were harvested weekly, during four weeks from the 7th day after 1-MCP spray and stored in regular air at 0.5°C for 120 days, or in controlled atmosphere (CA) at 0.7°C for 210 days, plus 7 days at 22°C. Regression analyzes for fruit quality attributes as a function of harvest date were performed to estimate post-storage firmness, soluble solids content, acidity and disorder indices for the estimated harvest dates when fruit of all three preharvest treatments achieved the same firmness of 71.1 N, at harvest. Preharvest 1-MCP and AVG treatments slowed softening and decreased severity of physiological disorders and decay associated to the delay of harvest date, depending on orchard, cultivar, and storage atmosphere. However, sprayable 1-MCP and AVG did not affect rates of fruit softening and internal browning development following air storage and did not affect or reduce rates of fruit softening and internal browning development following CA storage, if treated and untreated apple fruit were harvested at the same firmness. Sprayable 1-MCP and AVG did not reduce fruit cracking and decay following storage when fruit of these two treatments were harvested with same firmness of control fruit (71.1 N). Effects of AVG were similar to or greater than those of sprayable 1-MCP for retent.
653 $aethylene
653 $afirmness
653 $aharvest date
653 $ainternal browning
653 $aMalus × domestica
700 1 $aSCOLARO, A. M. T.
700 1 $aAMARANTE, C. V. T.
700 1 $aVIEIRA, M. J.
773 $tACTA HORTICULTURAE, Cartagena, Murcia, Spain$gn. 1194, p. 127-133, 2018.
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Epagri-Sede (Epagri-Sede) |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
05/05/2020 |
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Data da última atualização: |
05/05/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
BORTOLETTO-SANTOS, R.; GUIMARAES, G. G. F.; RONCATO JÚNIOR, V.; CRUZ, D. F.; POLITO, W. L.; RIBEIRO, C. |
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Título: |
Biodegradable oil-based polymeric coatings on urea fertilizer: N release kinetic transformations of urea in soil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, SP, v. 77, n. 1, p. 1-9, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Polymer coatings are used to control the rate of release of plant available nutrients
from fertilizers as well as to reduce nutrient losses such as ammonia (NH3) volatilization.
Although the literature presents several examples of materials used to coat urea, little is known
about nitrogen (N) release properties such as the mechanism involved and phenomena (e.g.,
pore opening) in the polymer coating. Thus, this study investigated urea release from polyurethane
(PU) derived from two renewable raw materials (castor oil and soybean oil), to explain
how the oil structure and coating microstructure influence release and urea-N dynamics in soil.
The results demonstrated that the profile of urea release and the urea-N mineralization in the
soil could be controlled by altering the thickness of the coating on the urea granules. Coating
by eco-friendly polymer was efficient in controlling urea release in soil to reduce volatilization of
ammonia and increase the availability of N in the soil. |
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Palavras-Chave: |
controlled release; nitrogen; plant nutrition; polyurethane; soil fertility. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01735naa a2200241 a 4500
001 1129614
005 2020-05-05
008 2020 bl uuuu u00u1 u #d
100 1 $aBORTOLETTO-SANTOS, R.
245 $aBiodegradable oil-based polymeric coatings on urea fertilizer$bN release kinetic transformations of urea in soil.$h[electronic resource]
260 $c2020
520 $aPolymer coatings are used to control the rate of release of plant available nutrients from fertilizers as well as to reduce nutrient losses such as ammonia (NH3) volatilization. Although the literature presents several examples of materials used to coat urea, little is known about nitrogen (N) release properties such as the mechanism involved and phenomena (e.g., pore opening) in the polymer coating. Thus, this study investigated urea release from polyurethane (PU) derived from two renewable raw materials (castor oil and soybean oil), to explain how the oil structure and coating microstructure influence release and urea-N dynamics in soil. The results demonstrated that the profile of urea release and the urea-N mineralization in the soil could be controlled by altering the thickness of the coating on the urea granules. Coating by eco-friendly polymer was efficient in controlling urea release in soil to reduce volatilization of ammonia and increase the availability of N in the soil.
653 $acontrolled release
653 $anitrogen
653 $aplant nutrition
653 $apolyurethane
653 $asoil fertility
700 1 $aGUIMARAES, G. G. F.
700 1 $aRONCATO JÚNIOR, V.
700 1 $aCRUZ, D. F.
700 1 $aPOLITO, W. L.
700 1 $aRIBEIRO, C.
773 $tScientia Agricola, Piracicaba, SP$gv. 77, n. 1, p. 1-9, 2020.
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