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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
12/07/2001 |
Data da última atualização: |
07/03/2023 |
Autoria: |
CASTRO NETO, M. T. de. |
Título: |
Physiological studies of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) grown under limiting water conditions. |
Ano de publicação: |
1988 |
Fonte/Imprenta: |
Tucson: The University of Arizona, 1988. |
Páginas: |
91p. |
Idioma: |
Inglês |
Notas: |
Tese Mestrado. |
Conteúdo: |
Four barley (Hordeum vulqare L) and two wheat (Triticum aestivum L) cultivars were grown with a preplant irrigation plus rainfall at the University of Arizona Marana Agricultural Center to study the relationship of growth and physiological characteristics to yield under limiting moisture condition. Grain yield of barley cultivars were ranked in the order Bold = 4-21-13 > 309-1, but increased yields were not related to early maturation dates or to other reproductive or vegetative characteristic which was examined. Grain removal by birds prevented the determination, of wheat yields, but Zaragoza, which is known to perform l well with limited water, had a deeper root system and higher water potentials than LIP-40. Laboratory measurements of severe osmotic stress (-0.8, -0.9 and -1.15 MPa) effects on leaf growth and physiology of barley leaves showed stress stopped leaf expansion immediately and led to rapid leaf shrinkage before growth resumed. Growth occurred in the basal 0.5 cm, and growth resumed when water potential of the growing region became -0.19 MPa lower than that of the external solution. |
Palavras-Chave: |
Hheat; Potencial; Potential Grain. |
Thesagro: |
Cevada; Deficiência Hídrica; Fisiologia; Grão; Hordeum Vulgare; Rendimento; Trigo; Triticum Aestivum. |
Thesaurus Nal: |
barley; physiology; water stress; yields. |
Categoria do assunto: |
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Marc: |
LEADER 01948nam a2200313 a 4500 001 1149464 005 2023-03-07 008 1988 bl uuuu m 00u1 u #d 100 1 $aCASTRO NETO, M. T. de 245 $aPhysiological studies of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) grown under limiting water conditions. 260 $aTucson: The University of Arizona$c1988 300 $a91p. 500 $aTese Mestrado. 520 $aFour barley (Hordeum vulqare L) and two wheat (Triticum aestivum L) cultivars were grown with a preplant irrigation plus rainfall at the University of Arizona Marana Agricultural Center to study the relationship of growth and physiological characteristics to yield under limiting moisture condition. Grain yield of barley cultivars were ranked in the order Bold = 4-21-13 > 309-1, but increased yields were not related to early maturation dates or to other reproductive or vegetative characteristic which was examined. Grain removal by birds prevented the determination, of wheat yields, but Zaragoza, which is known to perform l well with limited water, had a deeper root system and higher water potentials than LIP-40. Laboratory measurements of severe osmotic stress (-0.8, -0.9 and -1.15 MPa) effects on leaf growth and physiology of barley leaves showed stress stopped leaf expansion immediately and led to rapid leaf shrinkage before growth resumed. Growth occurred in the basal 0.5 cm, and growth resumed when water potential of the growing region became -0.19 MPa lower than that of the external solution. 650 $abarley 650 $aphysiology 650 $awater stress 650 $ayields 650 $aCevada 650 $aDeficiência Hídrica 650 $aFisiologia 650 $aGrão 650 $aHordeum Vulgare 650 $aRendimento 650 $aTrigo 650 $aTriticum Aestivum 653 $aHheat 653 $aPotencial 653 $aPotential Grain
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Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
09/12/2016 |
Data da última atualização: |
20/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
GALLI, V.; MESSIAS, R. da S.; PERIN, E. C.; BOROWSKI, J. M.; BAMBERG, A. L.; ROMBALDI, C. V. |
Afiliação: |
VANESSA GALLI, UFPEL; RAFAEL DA SILVA MESSIAS, UFPEL; ELLEN CRISTINA PERIN, UFPEL; JOYCE MOURA BOROWSKI, UFPEL; ADILSON LUIS BAMBERG, CPACT; CESAR VALMOR ROMBALDI, UFPEL. |
Título: |
Mild salt stress improves strawberry fruit quality. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
LWT Food Science and Technology, v. 73, p. 693-699, 2016. |
Idioma: |
Português |
Conteúdo: |
Strawberry is one of the most popular fruits because of its shape, color and taste, and the presence of antioxidant compounds. Because severe abiotic stresses result in detrimental consequences to plant growth, the effect of cultivating under mild stress conditions has rarely been investigated. Therefore, we evaluated the effect of mild salt stress on yield and quality of strawberry fruit. Mild salt stress did not affect yield. The lower level of mild salt stress evaluated showed increased vegetative growth (24%), higher photosynthetic effectiveness, and increased activity of phenoloxidase (22%) and polyphenoloxidase (33%), as well as the accumulation of sucrose (5%) and anthocyanins (60%) in the fruit, compared to non-stressed plants. The higher level of mild salt stress increased root growth (30%), the activity of phenylalanine ammonia lyase (68%), and the accumulation of total phenolic compounds (14%), and total antioxidant activity (13%) in the fruit, compared to non-stressed plants. The only phenolic compound improved in these treatments was (þ)- catechins. Both levels of salt stress affected the expression of genes involved in the phenylpropanoid and flavonoid pathways, cell wall disassembly and abscisic acid-related genes. Therefore, mild salt stress improves strawberry fruit quality. |
Palavras-Chave: |
Strawberry. |
Thesagro: |
Fruta; Fruta de clima temperado; Morango. |
Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151541/1/galli2016.pdf
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Marc: |
LEADER 01936naa a2200229 a 4500 001 2058338 005 2022-05-20 008 2016 bl uuuu u00u1 u #d 100 1 $aGALLI, V. 245 $aMild salt stress improves strawberry fruit quality.$h[electronic resource] 260 $c2016 520 $aStrawberry is one of the most popular fruits because of its shape, color and taste, and the presence of antioxidant compounds. Because severe abiotic stresses result in detrimental consequences to plant growth, the effect of cultivating under mild stress conditions has rarely been investigated. Therefore, we evaluated the effect of mild salt stress on yield and quality of strawberry fruit. Mild salt stress did not affect yield. The lower level of mild salt stress evaluated showed increased vegetative growth (24%), higher photosynthetic effectiveness, and increased activity of phenoloxidase (22%) and polyphenoloxidase (33%), as well as the accumulation of sucrose (5%) and anthocyanins (60%) in the fruit, compared to non-stressed plants. The higher level of mild salt stress increased root growth (30%), the activity of phenylalanine ammonia lyase (68%), and the accumulation of total phenolic compounds (14%), and total antioxidant activity (13%) in the fruit, compared to non-stressed plants. The only phenolic compound improved in these treatments was (þ)- catechins. Both levels of salt stress affected the expression of genes involved in the phenylpropanoid and flavonoid pathways, cell wall disassembly and abscisic acid-related genes. Therefore, mild salt stress improves strawberry fruit quality. 650 $aFruta 650 $aFruta de clima temperado 650 $aMorango 653 $aStrawberry 700 1 $aMESSIAS, R. da S. 700 1 $aPERIN, E. C. 700 1 $aBOROWSKI, J. M. 700 1 $aBAMBERG, A. L. 700 1 $aROMBALDI, C. V. 773 $tLWT Food Science and Technology$gv. 73, p. 693-699, 2016.
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