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| Registros recuperados: 11 | |
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| 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 |
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| 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<PR=SC), l (MS<PR=SC), w (MS<PR=SC), RAI (MS=PR>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 |
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| 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 |
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| 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: Parte de livro |
Palavras-chave: Morfologia floral; Estrutura de floração; Maçã; Morfologia Vegetal; Floração; Tubo Polínico; Plant morphology. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120903 |
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| 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 |
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| 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 |
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| Registros recuperados: 11 | |
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