| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
03/10/2013 |
|
Data da última atualização: |
03/10/2013 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
AMARANTE, C. V. T. do; MIQUELOTO, A.; FREITAS, S. T. de; STEFFENS, C. A.; SILVEIRA, J. P. G.; CORRÊA, T. R. |
|
Afiliação: |
CASSANDRO VIDAL TALAMINI DO AMARANTE, Universidade do Estado de Santa Catarina; AQUIDAUANA MIQUELOTO, Universidade do Estado de Santa Catarina; SERGIO TONETTO DE FREITAS, CPATSA; CRISTIANO ANDRÉ STEFFENS, Universidade do Estado de Santa Catarina; JOÃO PAULO GENEROSO SILVEIRA, Universidade do Estado de Santa Catarina; THAIS ROSELI CORRÊA, Universidade do Estado de Santa Catarina. |
|
Título: |
Fruit sampling methods to quantify calcium and magnesium contents to predict bitter pit development in Fuji apple: A multivariate approach. |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
Scientia Horticulturae, Amsterdam, v. 157, p. 19-23, 2013. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Bitter pit (BP) is a physiological disorder in apple commonly associated with high Mg/Ca ratio in fruit tissue. This work was carried out to identify the best fruit tissue sampling method for Ca and Mg assessment to discriminate ?Fuji? apples regarding the occurrence of BP. After six months under controlled atmosphere storage (2.0 kPa O2 + 0.5 kPa CO2, at 0.5 ?C/90?95% RH), fruit without or with BP were submitted to Ca and Mg analysis (mg kg?1 of fresh weight) in the total fraction (TF) of peel + flesh, and in the TF and soluble fraction (SF) of flesh or peel tissues. For the peel + flesh, a wedge-shaped segment was cut longitudinally from the fruit (with 1 cm wide at the equatorial region), discarding the core tissue. For individual sampling of the peel (thickness of 0?2 mm) or flesh (thickness of 2?8 mm), the fruit were cut along the equatorial region, so that only the distal end was used. In this portion of the fruit, Ca and Mg contents were higher in the peel than in the flesh in the TF, and lower in the peel than in the flesh in the SF, while the Mg/Ca ratios in TF and SF fractions were higher in the flesh than in the peel, regardless the occurrence of BP. Calcium and Mg contents in the SF relative to the TF were very low in both peel and flesh tissues. Calcium in the SF represented 0.36% and 2.79% of its content in the TF for peel and flesh, respectively. Magnesium content in the SF represented 0.70% and 3.74% of that in the TF for peel and flesh, respectively. Fruit without BP showed higher Ca content and lower Mg/Ca ratio in the TF of peel + flesh, peel or flesh, and in the SF of peel or flesh, compared to fruit with BP. Fruit without BP also showed a higher percentage of Ca in the SF in relation to TF in the peel (0.42%) compared to fruit with BP (0.31%). Fruit without BP also showed lower Mg content in TF of peel + flesh and peel, and in the SF of the flesh. There was no difference between fruit with and without BP only for Mg contents in TF of the flesh and SF of the peel. The canonical discriminant analysis showed that the Mg/Ca ratio in the SF of the peel tissue at the distal end of the fruit provides the best method to discriminate fruit without and with BP, which can be potentially used as a tool to predict BP development in Fuji apples. MenosBitter pit (BP) is a physiological disorder in apple commonly associated with high Mg/Ca ratio in fruit tissue. This work was carried out to identify the best fruit tissue sampling method for Ca and Mg assessment to discriminate ?Fuji? apples regarding the occurrence of BP. After six months under controlled atmosphere storage (2.0 kPa O2 + 0.5 kPa CO2, at 0.5 ?C/90?95% RH), fruit without or with BP were submitted to Ca and Mg analysis (mg kg?1 of fresh weight) in the total fraction (TF) of peel + flesh, and in the TF and soluble fraction (SF) of flesh or peel tissues. For the peel + flesh, a wedge-shaped segment was cut longitudinally from the fruit (with 1 cm wide at the equatorial region), discarding the core tissue. For individual sampling of the peel (thickness of 0?2 mm) or flesh (thickness of 2?8 mm), the fruit were cut along the equatorial region, so that only the distal end was used. In this portion of the fruit, Ca and Mg contents were higher in the peel than in the flesh in the TF, and lower in the peel than in the flesh in the SF, while the Mg/Ca ratios in TF and SF fractions were higher in the flesh than in the peel, regardless the occurrence of BP. Calcium and Mg contents in the SF relative to the TF were very low in both peel and flesh tissues. Calcium in the SF represented 0.36% and 2.79% of its content in the TF for peel and flesh, respectively. Magnesium content in the SF represented 0.70% and 3.74% of that in the TF for peel and flesh, respectively. Fruit w... Mostrar Tudo |
|
Palavras-Chave: |
Análise multivariada; Apple; Composição mineral; Desordem fisiológica; Metodologia de amostragem; Ppp. |
|
Thesagro: |
Cálcio; Fisiologia; Magnésio. |
|
Thesaurus Nal: |
bitter pit. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
Marc: |
LEADER 03207naa a2200301 a 4500
001 1967747
005 2013-10-03
008 2013 bl uuuu u00u1 u #d
100 1 $aAMARANTE, C. V. T. do
245 $aFruit sampling methods to quantify calcium and magnesium contents to predict bitter pit development in Fuji apple$bA multivariate approach.$h[electronic resource]
260 $c2013
520 $aBitter pit (BP) is a physiological disorder in apple commonly associated with high Mg/Ca ratio in fruit tissue. This work was carried out to identify the best fruit tissue sampling method for Ca and Mg assessment to discriminate ?Fuji? apples regarding the occurrence of BP. After six months under controlled atmosphere storage (2.0 kPa O2 + 0.5 kPa CO2, at 0.5 ?C/90?95% RH), fruit without or with BP were submitted to Ca and Mg analysis (mg kg?1 of fresh weight) in the total fraction (TF) of peel + flesh, and in the TF and soluble fraction (SF) of flesh or peel tissues. For the peel + flesh, a wedge-shaped segment was cut longitudinally from the fruit (with 1 cm wide at the equatorial region), discarding the core tissue. For individual sampling of the peel (thickness of 0?2 mm) or flesh (thickness of 2?8 mm), the fruit were cut along the equatorial region, so that only the distal end was used. In this portion of the fruit, Ca and Mg contents were higher in the peel than in the flesh in the TF, and lower in the peel than in the flesh in the SF, while the Mg/Ca ratios in TF and SF fractions were higher in the flesh than in the peel, regardless the occurrence of BP. Calcium and Mg contents in the SF relative to the TF were very low in both peel and flesh tissues. Calcium in the SF represented 0.36% and 2.79% of its content in the TF for peel and flesh, respectively. Magnesium content in the SF represented 0.70% and 3.74% of that in the TF for peel and flesh, respectively. Fruit without BP showed higher Ca content and lower Mg/Ca ratio in the TF of peel + flesh, peel or flesh, and in the SF of peel or flesh, compared to fruit with BP. Fruit without BP also showed a higher percentage of Ca in the SF in relation to TF in the peel (0.42%) compared to fruit with BP (0.31%). Fruit without BP also showed lower Mg content in TF of peel + flesh and peel, and in the SF of the flesh. There was no difference between fruit with and without BP only for Mg contents in TF of the flesh and SF of the peel. The canonical discriminant analysis showed that the Mg/Ca ratio in the SF of the peel tissue at the distal end of the fruit provides the best method to discriminate fruit without and with BP, which can be potentially used as a tool to predict BP development in Fuji apples.
650 $abitter pit
650 $aCálcio
650 $aFisiologia
650 $aMagnésio
653 $aAnálise multivariada
653 $aApple
653 $aComposição mineral
653 $aDesordem fisiológica
653 $aMetodologia de amostragem
653 $aPpp
700 1 $aMIQUELOTO, A.
700 1 $aFREITAS, S. T. de
700 1 $aSTEFFENS, C. A.
700 1 $aSILVEIRA, J. P. G.
700 1 $aCORRÊA, T. R.
773 $tScientia Horticulturae, Amsterdam$gv. 157, p. 19-23, 2013.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
19/12/2012 |
|
Data da última atualização: |
09/02/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
RESENDE, T. T. de; AUAD, A. M.; FONSECA, M. DAS G.; SANTOS, T. H. DOS; VIEIRA, T. M. |
|
Afiliação: |
TIAGO TEIXEIRA DE RESENDE, CNPGL; ALEXANDER MACHADO AUAD, CNPGL; MARCY DAS GRAÇAS FONSECA, UFJF; THIAGO HENRIQUE DOS SANTOS, UFJF; TAMIRIS MOREIRA VIANA, UFJF. |
|
Título: |
Impact of the spittlebug Mahanarva spectabilis on signal grass. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
The Scientific World Journal, v. 2012, article 926715, 2012. |
|
DOI: |
https://doi.org/10.1100/2012/926715 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The aim of this study was to determine the damage in Brachiaria ruziziensis (Germain & Edvard) according to the density of and exposure time to adults of Mahanarva spectabilis (Distant, 1909) (Hemiptera:Cercopidae). Each plant was kept with 0, 12, 18, or 24 adults of M. spectabilis for five or ten days. Then, the insects were removed from the plant, and the following parameters were evaluated: content and loss of chlorophyll, visual damage score, shoot dry mass, and the capability for regrowth. In fact, plants exposed to the highest level of infestation for 10 days showed an 80.97% loss of chlorophyll, which is 25% higher than that shown by the plants exposed for five days. The damage score also increased with infestation levels. In the levels of 12 and 18 adults per plant, the damage score increased with increasing time of exposure. The dry mass content was higher in plants exposed to 24 insects for 10 days, suggesting that the attack of spittlebugs caused premature drying of the plant. These effects caused significant reduction in the number of tillers of infested plants. Our results indicate that exposure to adults of M. spectabilis causes significant damage and affects the development and persistence of B. ruziziensis plants. |
|
Palavras-Chave: |
Hemiptera- cercopidae. |
|
Thesagro: |
Brachiaria Ruziziensis. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
Marc: |
LEADER 01884naa a2200205 a 4500
001 1943134
005 2024-02-09
008 2012 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1100/2012/926715$2DOI
100 1 $aRESENDE, T. T. de
245 $aImpact of the spittlebug Mahanarva spectabilis on signal grass.$h[electronic resource]
260 $c2012
520 $aThe aim of this study was to determine the damage in Brachiaria ruziziensis (Germain & Edvard) according to the density of and exposure time to adults of Mahanarva spectabilis (Distant, 1909) (Hemiptera:Cercopidae). Each plant was kept with 0, 12, 18, or 24 adults of M. spectabilis for five or ten days. Then, the insects were removed from the plant, and the following parameters were evaluated: content and loss of chlorophyll, visual damage score, shoot dry mass, and the capability for regrowth. In fact, plants exposed to the highest level of infestation for 10 days showed an 80.97% loss of chlorophyll, which is 25% higher than that shown by the plants exposed for five days. The damage score also increased with infestation levels. In the levels of 12 and 18 adults per plant, the damage score increased with increasing time of exposure. The dry mass content was higher in plants exposed to 24 insects for 10 days, suggesting that the attack of spittlebugs caused premature drying of the plant. These effects caused significant reduction in the number of tillers of infested plants. Our results indicate that exposure to adults of M. spectabilis causes significant damage and affects the development and persistence of B. ruziziensis plants.
650 $aBrachiaria Ruziziensis
653 $aHemiptera- cercopidae
700 1 $aAUAD, A. M.
700 1 $aFONSECA, M. DAS G.
700 1 $aSANTOS, T. H. DOS
700 1 $aVIEIRA, T. M.
773 $tThe Scientific World Journal$gv. 2012, article 926715, 2012.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
