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Registros recuperados: 18
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An annotated key to the genera of Lauraceae in the flora Malesiana region Naturalis
Werff, Henk van der.
Lauraceae are an important component of wet tropical forests and are well represented in the Flora Malesiana region. Their identification has been hampered by two factors: several of the genera are poorly defined and existing keys require both flowers and fruits, which are, however, rarely present together on a specimen. Here a key based almost entirely on flowering specimens is presented, problems in generic delimitation are discussed and vegetative characters helpful in generic identification are listed.
Tipo: Article / Letter to the editor Palavras-chave: Lauraceae; Genera; Key; Malesia; Flowers; Vegetative characters.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/525118
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Chemistry Inspired by the Colors of Fruits, Flowers and Wine Anais da ABC (AABC)
QUINA,FRANK H.; BASTOS,ERICK L..
ABSTRACT An overview is provided of the status of research at the frontiers of investigation of the chemistry and photochemistry of two classes of natural plant pigments, the anthocyanins and the betalains, as well as of the pyranoanthocyanin pigments formed from anthocyanins during the maturation of red wine. Together, anthocyanins and betalains are responsible for almost all of the red, purple and blue colors of fruits and flowers and anthocyanins and pyranoanthocyanins are major contributors to the color of red wines. All three types of pigments are cationic below about pH 3, highly colored, non-toxic, reasonably soluble in water or alcohol and fairly stable to light. They exhibit good antioxidant or antiradical activity and, as part of our diet, confer...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthocyanins; Betalains; Flowers; Plant pigments; Wine.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000200681
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Cultivo de antúrio. Infoteca-e
FERREIRA, F. de O.; LEONEL, L. A. K..
bitstream/item/183106/1/174-177.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Flor Tropical; Planta Ornamental; Agricultura Familiar; Flowers; Family farms.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1095857
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Directional orientation of reproductive tissue of Eulychnia breviflora (Cactaceae) in the hyperarid Atacama Desert RChHN
Warren,Steven D.; Aguilera,Lorgio E.; Scott Baggett,L..
BACKGROUND: Many barrel or columnar cacti, including some in the Atacama Desert, produce their reproductive tissue at or near the terminal apices of solitary or minimally branched stems that lean toward the equator, reportedly to maximize exposure to photosynthetically active radiation (PAR). Those with lateral reproductive tissue, often produce the tissue on the equatorial side of the stems. An examination of the multi-stemmed, arbuscular cactus, Eulychnia breviflora, was made to determine if it follows the same general strategy. METHODS: Individuals of the species were evaluated along a 100 km transect in the Atacama Desert. The position of all floral buds and open flowers was documented relative to the center of the plants and relative to the center of...
Tipo: Journal article Palavras-chave: Eulychnia breviflora; Energetic efficiency; Equatorial orientation; Flowers; Photosynthetically active radiation (PAR).
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2016000100010
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Drought sress and the distribution of vegetative and reproductive traits of a bean cultivar Scientia Agricola
Nuñez Barrios,Abelardo; Hoogenboom,Gerrit; Nesmith,Dennis Scott.
Soil water deficits may affect the location and pattern of flower and pod production on different stem axes of a bean plant. The objective of this study was to understand the effect of drought stress on the distribution of flowers and pods on the main stem and on branches of bean plants. The experiment was conducted in a shelter field facility. Water stress was imposed from the end of the vegetative stage to physiological maturity and soil water was measured with a neutron probe every two weeks. Formation of flowers at each node of the main stem was monitored at 44 days after planting (DAP) and formation of pods at 55DAP and 65 DAP. Dry weight of stems and leaves as well leaf area were measured during the middle of the pod filling stage (55DAP). The total...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dry beans; Soil water; Flowers; Pod setting; Branches.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100004
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EFFECTIVENESS OF POSTHARVEST SOLUTIONS FOR THE CONSERVATION OF CUT Oncidium varicosum (ORCHIDACEAE) INFLORESCENCES Ciência e Agrotecnologia
Mattiuz,Claudia Fabrino Machado; Mattiuz,Ben-Hur; Rodrigues,Teresinha de Jesus Deléo; Marques,Kelly Magalhães; Martins,Ramilo Nogueira.
The orchid Oncidium varicosum is a tropical plant with significant commercial value due to the beauty of its yellow inflorescences. Several authors have observed a reduction in the water content of cut flowers, consequently, wilting and senescence of petals are the main reasons for the termination of the decorative life of cut flowers. In this research, we studied the effects of several chemical compounds on the postharvest life of cut inflorescences of Oncidium varicosum 'Samurai'. These chemicals are as follows: sucrose (5%) plus 8-hidroxiquinoline citrate (8-HQC) (100 mg L-1) plus silver nitrate (AgNO3) (50 mg L-1); sucrose (5%) plus citric acid (75 mg L-1); quaternary ammonia at 30% (50 mg L-1); and sucrose (5%) plus quaternary ammonia at 30% (50 mg...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Physiology; Orchids; Flowers; Carbohydrates; Carotenoids; Relative water content.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000400315
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Evaluation of CMS lines for various floral traits that influence outcrossing in rice (Oryza sativa L.) International Rice Research Institute
Singh, R. J.; Shirisha, Y.; Singh, A. K.; Singh, A..
p.24-26
Palavras-chave: Cytoplasmic male sterility; Outcrossing; Flowers; Flowering; Genetic variation.
Ano: 2003 URL: http://hdl.handle.net/123456789/1318
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Evolutionary studies on genetic variation of floral morphology in rice International Rice Research Institute
Uga, Yusaku.
iv, 109 leaves : ill. (some col.) Thesis (Ph.D.) -- University of Tsukuba
Tipo: Thesis Palavras-chave: Rice; Plant genetics; Evolution; Genetic variation; Flowers; Plant morphology.
Ano: 2003 URL: http://hdl.handle.net/123456789/399
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International Flower Networks: Transparency and Risks in Marketing Channel Choice AgEcon
Wijnands, Jo H.M.; van der Lans, Karin; Hobbs, Jill E..
Two thirds of Kenyan cut flowers are marketed through Dutch flower auctions, while the remainder is marketed directly to retailers. Auctions do not restrict the volumes marketed; however price determination is based on a spot market. A Transaction Cost approach is used to investigate the differences in marketing costs between the channels. The results suggest that there are no differences between the channels in terms of uncertainty about prices, finding buyers or transparency of quality standards. Auction growers pay a higher marketing fee but they have significantly fewer office employees and flower varieties compared to growers who market directly.
Tipo: Conference Paper or Presentation Palavras-chave: Transaction Costs; Auction; Flowers; Kenya; Netherlands; Agribusiness; International Relations/Trade.
Ano: 2006 URL: http://purl.umn.edu/7759
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Observação da visita de morcegos (Chiroptera) às flores de Pseudobombax grandiflorum (Cav.) A. Robyns Zoologia
Silva,Shirley S. Pereira da; Peracchi,Adriano Lúcio.
The visit of two species of bats to the flowers of Pseudobombax grandiflorum (Cav.) A. Robyns was observed in the Federal Rural University of Rio de Janeiro during the period of may and july of 1989. The flowers of this vegetal species present attributions in accordance to the Syndrome of Chiropterophily and receive the visit of Glossophaga soricina (Pallas. 1766) and Phyllostomus hastatus (Pallas. 1767). Glossophaga soricina has morfological caracteristes for nectarivory, Phyllostomus hastatus is omnivorous and starts its visils soon after the anthesis. That bats present landing behaviour during the visit.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chiroptera; Pseudobombax grandiflorum; Bats; Flowers; Néctar; Chiropterophily.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400015
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PANORAMA DO AGRONEGÓCIO DE FLORES E PLANTAS ORNAMENTAIS NO BRASIL AgEcon
Franca, Carlos Alberto Machado De; Maia, Moacyr Boris Rodrigues.
O presente artigo, com base em uma pesquisa bibliográfica, traça um panorama do agronegócio de flores e plantas ornamentais no Brasil. Ressalta os principais aspectos do setor como produção, mercado consumidor e dificuldades. A floricultura vem se expandindo consideravelmente, antes restrita a região Sudeste, principalmente no Estado de São Paulo, hoje se encontra em todas as regiões do País, graças ao trabalho de diversas Instituições que acreditam no potencial desse segmento. Um dos aspectos que contribui para a expansão são as condições climáticas do Brasil que favorece o cultivo de flores de clima temperado e tropical. Em função dessa diversidade climática é possível produzir internamente flores, folhagens e outros derivados, todos os dias do ano a um...
Tipo: Conference Paper or Presentation Palavras-chave: Flores; Plantas ornamentais; Agronegócio; Mercado de flores; Produção de flores; Flowers; Ornamental plants; Agribusiness; Flower market; Flower prodution; Agribusiness; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/113994
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Produção de flores ornamentais tropicais. Infoteca-e
SILVA, F. P. M. da; LEONEL, L. A. K.; PASCHOALICK, H. N. dos S..
bitstream/item/183078/1/170-173.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Folhagem tropical; Flor; Agricultura Familiar; Flowers; Family farms.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1095828
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Producción de chile guajillo (Capsicum annuum L.) en función de la edad al trasplante, aplicación de residuo de girasol y tipo de suelo Colegio de Postgraduados
Vázquez Casarrubias, Gabino.
En relación a la siembra directa el trasplante en el cultivo de chile permite el uso eficiente de semillas, uniformidad en la población y seguridad en la producción. Sin embargo, dicha producción dependerá de la edad de la plántula al trasplante. El objetivo del presente estudio fue evaluar el crecimiento y rendimiento de dos cultivares de chile Guajillo (Capsicum annuum L.) Apaxtleco y Mirasol en función de la edad al trasplante, el manuscrito se presenta en 4 capítulos: Capítulo I. Crecimiento y rendimiento de chile guajillo Apaxtleco y Mirasol en función de la edad al trasplante bajo condiciones de invernadero, en donde se establecieron 3 fechas de trasplante a los 15, 30 y 45 días después de la emergencia (dde). Capítulo II. Crecimiento y...
Tipo: Tesis Palavras-chave: Altura; Área foliar; Botones; Flores; Biomasa; Rendimiento; Indice de cosecha; Maestría; Botánica; Height; Leaf area; Buttons; Flowers; Biomass; Yield; Harvest index.
Ano: 2008 URL: http://hdl.handle.net/10521/1496
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Studies on chemical constituents and bioactivity of Rosa micrantha: an alternative antioxidants source for food, pharmaceutical, or cosmetic applications IPB - Escola Superior Agrária
Guimarães, Rafaela; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R..
Rose species have long been used for food and medicinal purposes. Rosa micrantha is one of the rose species that grow feral in the northeastern Portuguese region so-called Nordeste Transmontano. For the first time, chemical composition and bioactivity of their petals, fertilized flowers, unripe, ripening, and overripe hips were evaluated in order to valorize them as sources of important phytochemicals. Chemical characterization included determination of proteins, fats, ash, and carbohydrates, particularly sugars, by HPLC-RI, fatty acids by GC-FID, tocopherols by HPLCfluorescence, and phenolics, flavonoids, carotenoids, and ascorbic acid by spectrophotometric techniques. Bioactivity was evaluated through screening of antioxidant properties: radical...
Tipo: Article Palavras-chave: Rosa micrantha; Hips; Flowers; Bioactive compounds; Applications; Portuguese ethnobotany.
Ano: 2010 URL: http://hdl.handle.net/10198/2645
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Total phenolic compounds, flavonoids and antioxidant activity in the flowers of Crataegus spp. from México Agrociencia
García-Mateos,Rosario; Aguilar-Santelises,Leonor; Soto-Hernández,Marcos; Nieto-Angel,Raúl; Kite,Geoffrey.
There are a number of medicinally active phytochemicals isolated from hawthorn with most of the data generated in studies of those species that are native to Europe and Asia. Comparatively little is known about the North American, specifically the Mexican Crataegus species. The objective of this study was to evaluate phenolic compounds, flavonoids and antioxidant activity of extracts of flowers from six Mexican accessions of Crataegus in order to contribute to the chemistry of the Germplasm Bank accessions at the Universidad Autonóma Chapingo. Antioxidant activity was evaluated using DPPH (2,2-diphenyl-1-picrylhydrazyl) method and the flavonoids were identified by HPLC-MS. Quercetin- 3-O-glucoside, quercetin-3-O-rhamnoside, quercetin...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crataegus; Flavonoids; Flowers; Mexican hawthorn; Radical scavenging activity.
Ano: 2012 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952012000700002
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Visits of bats to flowers of Lafoensia glyptocarpa KOEHNE (LYTHRACEAE) BJB
SILVA,S. S. P.; PERACCHI,A. L..
In the present study visits of phyllostomid bats to the Lafoensia glyptocarpa Kohne flowers were observed at Federal Rural University of Rio de Janeiro, Itaguaí municipality, Rio de Janeiro state. This tree species present floral characteristics to fit the "chiropterophilous syndrome", encouraging the visit of four species of bats which showed different behavior patterns, according to their size, weight and access to the food resources. Glossophaga soricina (Pallas, 1766) showed hovering behavior. Phyllostomus hastatus (Pallas, 1767) and Platyrrhinus lineatus (Geoffroy, 1810) showed landing behavior and Artibeus lituratus (Olfers, 1818) fed during the quick flight, without a real landing.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chiroptera; Chiropterophily; Bats; Flowers; Lafoensia glyptocarpa.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000100003
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Weed Management and Herbicide Selectivity in Ornamental Plants Planta Daninha
MARTINS,D.; MARTINS,C.C.; SILVA JR.,A.C..
ABSTRACT: Floriculture and landscaping sector has the same problems as other crops regarding weed management. Weeds affect the yield and quality of the harvested product, in which the visual aspect and aesthetics stand out as the most important factors in flower production and landscaping. Weed control in floriculture and landscaping is critical and costly because maintaining the beauty of the product and the use of herbicides is a low-cost management tool compared to manual management. However, it implies knowing herbicide selectivity, as ornamental species may present some injury depending on the active ingredient and the degree of selectivity of the compound. Because the use of this practice in flower production and landscaping both abroad and mainly in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical control; Flowers; Floriculture; Landscaping.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100305
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การเจริญเติบโตของสตรอเบอรี่ระบบการผลิตแบบลอยฟ้าในโรงเรือนแบบระเหยน้ำและมุ้งตาข่าย Thai Agricultural
Sawitrie Tiwong.
Special Problem (B.S. in Agriculture)
Tipo: PhysicalObject Palavras-chave: Strawberry; Fragaria ananassa; Cropping systems; Plant production; Sky production system under evaporative cooling system; Net greenhouses; Vegetative growth; Flowers; Thailand; สตรอเบอรี่; พันธุ์โตโยโนกะ; การปลูกพืช; ระบบการผลิตแบบลอยฟ้า; โรงเรือนแบบระเหยน้ำ; มุ้งตาข่าย; การเจริญเติบโตทางก้านใบ; ปริมาณช่อดอก; ผลผลิต; ทรงพุ่ม; ประเทศไทย.
Ano: 2003 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5498
Registros recuperados: 18
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