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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:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Semiárido (CPATSA)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CPATSA23796 - 1ADDTS - PP13/19881988.00013
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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:  --
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151541/1/galli2016.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Clima Temperado (CPACT)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPACT19549 - 1UPCAP - DD
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