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| Souza, Clovis Arruda; UDESC; Coelho, Cileide Maria Medeiros; UDESC; Guidolin, Altamir Frederico; UDESC; Engelsing, Marcio José; UDESC; Bordin, Luiz Carlos; UDESC. |
| A baixa altura de inserção de vagem em feijão é pela baixa estatura dos entrenós basais da planta, que acarreta em problemas de manejo das plantas, qualidade de grãos e ineficiência na colheita com automotriz. Assim, o objetivo deste trabalho foi determinar o efeito de giberelina exógena para incrementar estatura dos entrenós basais das plantas. O experimento foi conduzido em casa-de-vegetação e a campo, com dois genótipos de feijão. Em ambas as condições realizaram-se os seguintes tratamentos: sementes tratadas com solução de ácido giberélico (GA3) 10 µM; pulverização sobre as plântulas (gancho, folhas primárias, primeiro e segundo trifólios) com o GA3; e água destilada (controle). As plantas foram colhidas e avaliadas no estádio de... |
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Palavras-chave: 5.01.03.00-8 Phaseolus vulgaris; Giberelinas; Alongamento da haste; Hipocótilo; Epicótilo Fitotecnia; Fisiologia de plantas cultivadas Phaseolus vulgaris; Gibberellins; Stem elongation; Hypocotyl; Epicotyl. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3721 |
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| Gomide,Carlos Augusto de Miranda; Paciullo,Domingos Sávio Campos; Costa,Igor de Almeida; Lima,Aline Medeiros; Castro,Carlos Renato Tavares de; Lédo,Francisco José da Silva. |
| The aim of this study was to evaluate during the dry and rainy seasons the morphogenesis traits of two clones of dwarf elephant grass under different management strategies. The study was conducted in a factorial 2 × 2 × 3 design, using two clones, one green and one purple, two residual heights, 25 and 45 cm, and three frequencies of defoliation according to the light interception of 90, 95 and 100%. The design was a randomized block with three replications. The variables were leaf elongation and leaf senescence rate, stem elongation rate and phyllochron. The leaf lifespan and the number of living leaves per tiller were also estimated. The clones presented low stem elongation rates, showing adaptation for grazing use. In the rainy season, the light... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf elongation; Leaf senescence; Light interception; Pennisetum purpureum; Phyllochron; Stem elongation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700007 |
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| Mouginot, Pierick; Luviano Aparicio, Nelia; Gourcilleau, Delphine; Latutrie, Mathieu; Marin, Sara; Hemptinne, Jean-louis; Grunau, Christoph; Pujol, Benoit. |
| The phenotypic plasticity of plants in response to change in their light environment, and in particularly, to shade is a schoolbook example of ecologically relevant phenotypic plasticity with evolutionary adaptive implications. Epigenetic variation is known to potentially underlie plant phenotypic plasticity. Yet, little is known about its role in ecologically and evolutionary relevant mechanisms shaping the diversity of plant populations in nature. Here we used a reference-free reduced representation bisulfite sequencing method for non-model organisms (epiGBS) to investigate changes in DNA methylation patterns across the genome in snapdragon plants (Antirrhinum majus L.). We exposed plants to sunlight versus artificially induced shade in four highly... |
| Tipo: Text |
Palavras-chave: Phenotypic plasticity; Epigenetics; EpiGBS; Stem elongation; Shade avoidance. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00679/79105/81582.pdf |
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