Consulta: subjectFacets:"Plant morphology"
Registros recuperados: 9
Data/hora: 09/06/2024 18:57:20

Somaclonal variation in Asparagus officinalis plants regenerated by organogenesis from long-term callus cultures
Provedor de dados: 74
Autores: Pontaroli,Ana Clara; Camadro,Elsa Lucila.
Somaclonal variation in plants regenerated by organogenesis from long-term cultured calluses of two diploid staminate genotypes of Asparagus officinalis cv. Argenteuil was characterized by plant phenotype, ploidy, meiotic behavior, pollen viability, fruit and seed set, and AFLP profiles. Phenotypic deviations from the donors were detected in foliage color, flower size, and cladode and flower morphology. Ploidy changes were observed in 37.8% of the 37 regenerants studied. Meiotic alterations in 12 out of 21 regenerants included laggards, dicentric bridges, micronuclei, restitution nuclei and polyads. Of the 408 AFLP markers screened in 43 regenerants and the donors, 2.94% showed polymorphism. High pollen viability was observed in the 22 regenerants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AFLP; Fertility; Plant morphology; Meiotic behavior; Ploidy.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300015

Caracterização dos órgãos reprodutores florais de diferentes estruturas de frutificação de macieiras no semiárido brasileiro.
Provedor de dados: 14
Autores: LOPES, P. R. C.; MATOS, R. R. S. da S; OLIVEIRA, I. V. de M.; SANTOS, J. S. dos.
A maçã é a 2ª fruta de clima temperado mais produzida no Brasil, porém a expansão para regiões subtropicais esbarra na falta de conhecimento sobre a interferência das condições climáticas no desenvolvimento da biologia floral e reprodutiva. Assim, objetivou-se avaliar os órgãos reprodutores florais de diferentes estruturas de frutificação m macieiras sob condição semiárida tropical, em Lagoa Grande-PE. O trabalho foi conduzido de julho/2015 a dezembro/2016 na Fazenda Sereníssima, em Lagoa Grande-PE. Com delineamento em blocos casualisados, com 5 repetições, em arranjo fatorial 3x3, de 3 cultivares (?Julieta?, ?Princesa? e ?Eva?) gemas de 3 diferentes estruturas (axila de brindila, terminal de brindila e de esporão). Foram avaliadas: massa fresca do...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Morfologia floral; Estrutura de floração; Maçã; Morfologia Vegetal; Floração; Tubo Polínico; Plant morphology.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120903

An extension of the Plant Ontology project supporting wood anatomy and development research
Provedor de dados: 16
Autores: Lens, F.; Cooper, L.; Gandolfo, M.A.; Groover, A.; Jaiswal, P.; Lachenbruch, B.; Spicer, R.; Staton, M.E.; Stevenson, D.W.; Walls, R.L.; Wegrzyn, J.
The Wood Ontology project will provide a structured vocabulary and database resource that will be valuable for all scientists, including the IAWA community. To maximizethe utility of the resource and analyses it empowers, it is important for researchers to adopt the use of the ontology terms in the collection and dissemination of their data. The PO website (www.plantontology.org) is the main portal for the Plant Ontology, and presents the current version.
Tipo: Article / Letter to the editor
Palavras-chave: Plant Ontology; Wood anatomy and development; Plant morphology; Structured vocabulary; Database resource; 42.40.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/429515

Notes on the distribution, habitats and morphology of Stylaster roseus (Pallas 1766) (Hydrozoa: Stylasterina) in the Colombian Caribbean
Provedor de dados: 20
Autores: Sanchez-M., Juan A.; Navas-S., Gabriel R.
Stylaster roseus en el Caribe colombiano es un común habitante de sus arrecifes coralinos, exceptuando la región de Santa Marta y la Guajira. S. roseus es una especie críptica que tiende a ubicarse en sitios sombreados, generalmente bajo o entre ramas de coral muerto o vivo. Se le observó entre esqueletos de Acropora palmata (2-6 m), sobre las partes laterales e internas de pináculos de Millepora (0.5-3 m), bajo tejados de Montastraea annularis y Agaricia spp. (15-30 m), y sobre embarcaciones hundidas (5-20 m). Adicionalmente se encontró creciendo sobre tejido vivo de Millepora. No se encontraron diferencias en las medidas promedio de colonias de habitáis similares. La coloración más común fue tronco blanco y ramas púrpura, seguida por la púrpura uniforme....
Tipo: Journal Contribution
Palavras-chave: Coral reefs; Plant morphology; Coral reefs; Plant morphology; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_13434.
Ano: 1994
URL: http://hdl.handle.net/1834/3794

Tiller size/density compensation in grazed Tifton 85 bermudagrass swards
Provedor de dados: 86
Autores: Sbrissia,André Fischer; Silva,Sila Carneiro da; Matthew,Cory; Carvalho,Carlos Augusto Brandão de; Carnevalli,Roberta Aparecida; Pinto,Luiz Felipe de Moura; Fagundes,Jaílson Lara; Pedreira,Carlos Guilherme Silveira.
The objective of this study was to evaluate the occurrence of the tiller size/density compensation mechanism in Tifton 85 bermudagrass swards grazed by sheep under continuous stocking. Treatments corresponded to four sward steady state conditions (5, 10, 15, and 20 cm of sward surface height), maintained by sheep grazing. The experimental design was a complete randomized block with four replicates. Pasture responses evaluated include: tiller population density, tiller mass, leaf mass and leaf area per tiller, and herbage mass. Tiller volume, leaf area index, tiller leaf/stem ratio, and tiller leaf area/volume ratio were calculated and simple regression analyses between tiller population density and tiller mass were performed. Measurements were made in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cynodon; Leaf area index; Mass; Density; Plant morphology.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003001200013

ศักยภาพกล้วยไม้สกุลนางอั้วในเชิงการค้า
Provedor de dados: 106
Autores: Phruek Kongsawad; Supas Nusawad; Supapong Sachit; Jongwattana Pumherun.
The ground orchids ‘Pecteilis sp.’ have great potentials for development to commercial scale. This orchid group rest in dry season and flowering in rainy season, less taking care; so, it can be developed to pot plant similar to tulip. This research aims to develop new Thai orchid product for commercial scale by research and development. This work was done at Sisaket Horticulture Research Center during 2006-2011. It was collection of, the orchids ‘Pecteilis sp.’ from natural in north-east Thailand and market, 810 orchid plants included 500 plants of Pecteilis sagarikii and 310 plants of Pecteilis susannae. Moreover, four good parent lines were selected, and a pair of intergeneric hybrid between Pcteilis x Habenaria was bred for commercial scale.
Tipo: PhysicalObject
Palavras-chave: Orchid; Orchidaceae; Pcteilis; Hybridization; Intergeneric; Plant breeding; Selection interspecific; Interspecific hybridization; Intergeneric hybridization; Plant morphology; Production potential; กล้วยไม้ดินสกุลนางอั้ว; พันธุ์การค้า; การรวบรวมพันธุ์; การปรับปรุงพันธุ์; การคัดเลือก; การผสมข้ามสกุล; การผสมข้ามชนิด; ลักษณะทางสัณฐานวิทยา; ศักยภาพการผลิต.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5783

Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients
Provedor de dados: 39
Autores: Einzmann,Helena J. R.; Schickenberg,Nina; Zotz,Gerhard.
ABSTRACT Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in plant-water-relations. The present study expanded on this idea by analysing nine root traits that can be linked to root function, including velamen structure, along two moisture gradients of different spatial scales: 1) along the vertical gradient of a lowland forest in central Panama and 2) along a strong regional rainfall gradient in western Panama. All studied traits (e.g. velamen width, number of xylem poles, lignification of the exodermis) of the 45 orchid species showed substantial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epiphytic orchids; Exodermis; Interspecific variation; Intraspecific variation; Lignification; Plant morphology; Velamen radicum; Water relations.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100066

Are sun- and shade-type anatomy required for the acclimation of Neoregelia cruenta?
Provedor de dados: 42
Autores: REINERT,FERNANDA; LEAL-COSTA,MARCOS V.; JUNQUEIRA,NICIA E.; TAVARES,ELIANA S.
Sun and shade plants are often discriminated by a number of sun- and shade-type anatomies. Nonetheless, we propose that among tank-bromeliads, changes in rosette architecture satisfy the requirements for coping with contrasting light levels. The tank-bromeliad Neoregelia cruenta naturally colonises sub-habitats ranging from full exposure to direct sunlight, to shaded environments in sand ridge plains. We quantified anatomical and morphological traits of leaves and rosettes of N. cruenta grown under sun and shade conditions. Cells with undulated lateral walls within the water parenchyma are for the first time described for the family. Under high light, leaf blades were wider, shorter, and yellowish. The rosette diameter of sun plants was less than half that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bromeliaceae; Crown architecture; Leaf anatomy; Plant morphology.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200561

Populational Diversity on Leaf Morphology of Maté (Ilex paraguariensis A. St.-Hil., Aquifoliaceae)
Provedor de dados: 52
Autores: Coelho,Geraldo Ceni; Mariath,Jorge Ernesto de Araujo; Schenkel,Eloir Paulo.
Maté (Ilex paraguariensis A. St.-Hil.) is a native plant from southern Brazil and a raw material for beverages. To research on population variability of the species, we compared leaf morphology of three populations from Mato Grosso do Sul (MS), Paraná (PR) and Santa Catarina (SC) States. Lamina measurements included area (A), perimeter (P), length (l), maximum width (w), distance between maximum width and lamina base (dw), base angle (BÂ), biomass (m), and the indexes: relative distance of maximum width (dw/l), ratio length/width (l/w), relative perimeter (RP= P / (l + w), rectangular area index (RAI = A / (l x w)) and leaf mass/area (m/A). We verified differences among populations on A (MS&lt;PR=SC), l (MS&lt;PR=SC), w (MS&lt;PR=SC), RAI (MS=PR&gt;SC) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ilex paraguariensis; Aquifoliaceae; Plant morphology; Leaf morphology; Population variability; Rectangular area index.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000100008