Consulta: subjectFacets:"Leaf growth"
Registros recuperados: 4
Data/hora: 05/06/2024 02:43:13

New insight into how thigmomorphogenesis affects Epipremnum aureum plant development
Provedor de dados: 75
Autores: Benedetto,Adalberto Di; Galmarini,Claudio; Tognetti,Jorge.
ABSTRACT Climbing Epipremnum aureum plants develop larger leaves than unsupported, hanging plants. This effect may be regarded, in part, as a thigmomorphogenic response, but gravimorphogenetic effect may also be involved, since polar auxin transport is known to be negatively affected in plants with horizontal or hanging stems, which may result in an altered hormone balance at the whole plant level. The present work was aimed at studying how exogenous auxins and cytokinins may influence growth of E. aureum rooted cuttings under different training systems. Rooted cuttings of E. aureum were cultivated either climbing on an upright wooden board or creeping on the glasshouse bench or hanging from a basket. All leaves of each plant were sprayed to run-off at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Auxin; Citokinin; Foliage plants; Gravitropism; Leaf growth; Leaf anatomy; Photosynthesis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300330

Changes in growth variables and potassium content in leaves of Black Barley in response to NaCl
Provedor de dados: 61
Autores: Abu-Al-Basal,Mariam A.; Yasseen,Bassam T.
Much attention is being focused on the Black barley (Hordeum distichum L.) as a local cultivar offering good model for a cereal crop has traits of resistance to drought and salinity during vegetative growth stages. Although Black was sensitive to salt stress during germination, it developed gradual tolerance with age and proved very tolerant during growth and development stages. The data of study clearly revealed how this cultivar was superior over Arivat (Hordeum vulgare L.) in many physiological aspects such as leaf growth variables (i.e. rate and duration) and processes (i.e. cell division), tiller production and potassium content. Black barley had more tillers, faster rate and longer duration of growth processes which was accompanied with potassium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Black barley; Hordeum distichum L.; Cell division; Growth rate; Growth duration; Leaf growth; Arivat; Hordeum vulgare L.; Potassium; Salt stress.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000400002

Sunlight transmitted by colored shade nets on photosynthesis and yield of cucumber
Provedor de dados: 65
Autores: Tafoya,Felipe Ayala; Juárez,Moisés Gilberto Yáñez; Orona,Carlos Alfonso López; López,Raymundo Medina; Alcaraz,Teresa de Jesús Velázquez; Valdés,Tomás Díaz.
ABSTRACT:  Black shading nets are widely used in the protected cultivation of vegetables as a technique for controlling light and temperature, while the colored shading nets, with special optical properties to improve the use of solar radiation, appeared recently in the agricultural plastics market. Light quality transmitted by gray, aluminized, pearl, blue, red and black (control) nets with 30% shade was evaluated, as well as its effects on photosynthetic properties and fruits production of cucumber plants. Treatments (shade nets) were established under a randomized complete block design with four repetitions. The red net transmitted 23.7 and 40.3% more photosynthetic photon flux density (400 to 700nm) and red light (600 to 700nm) and the blue net...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis sativus L.; Light transmission; Photosynthetic responses; Leaf growth; Fruit production.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900200

A temperature response function for modeling leaf growth and development of the African violet (Saintpaulia ionantha Wendl.)
Provedor de dados: 65
Autores: Streck,Nereu Augusto.
Response functions used in crop simulation models are usually different for different physiological processes and cultivars, resulting in many unknown coefficients in the response functions. This is the case of African violet (Saintpaulia ionantha Wendl.), where a generalized temperature response for leaf growth and development has not been developed yet. The objective of this study was to develop a generalized nonlinear temperature response function for leaf appearance rate and leaf elongation rate in African violet. The nonlinear function has three coefficients, which are the cardinal temperatures (minimum, optimum, and maximum temperatures). These coefficients were defined as 10, 24, and 33ºC, based on the cardinal temperatures of other tropical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Temperature; Model; Leaf growth; Leaf development; African violet.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000100009