Lotus Effect
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Allelopathic Effect of Lotus and Arrowhead Weed on Wheat, Wild Oat and Milkthistle Germination
RESUMO: Foi conduzido um experimento para investigar os efeitos alelopáticos do lótus (Nelumbo nucifera Gaertn.) e da erva-flecha (Sagittaria sagittifolia (Brummitt & Powell): L.) na germinação de sementes de trigo e duas plantas daninhas associadas: aveia silvestre (Avena fatua L.) e cardo-mariano (Silybum marianum (L.) Gaertn.). O experimento foi insta
Planta daninha. Publicado em: 06/05/2019
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2. Superfícies super-hidrofóbicas obtidas através de microestruturas litografadas. / Superhydrophobic surfaces obtained by microstructures lithographed.
Aqui apresentamos um modelo teórico para superfícies super-hidrofóbicas que são formadas por superfícies contendo padrões periódicos na forma de microcavidades. Com este modelo obtivemos a relação ideal entre profundidade e diâmetro das cavidades para que a superfície manifeste seu caráter super-hidrofóbico. Assim, fabricamos superfícies em PDM
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/10/2011
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3. Effect of intercropping wheat with forage legumes on wheat production and ground cover.
The use of winter legumes in southern Brazil is hindered by the slow growth of these species during establishment exposing soil surface to erosion. Introduction of these species along with spring wheat (Triticum aestivum L.) was studied as a means of increasing ground cover during their initial establishment period, without reducing wheat grain yield. Two ex
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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4. Rhizobia selection and nitrogen efects in the symbiosis with alfafa and birdsfoot / Seleção de rizóbios e efeito do nitrogênio na simbiose com alfafa e cornichão
Alfalfa and birdsfoot forages are important plants used during the pastures¿ hibernal period of Rio Grande do Sul, gathering desired traits such as high nutritional value, high forage production, good acceptability and digestibility. However, in Brazil, there is a lack of studies aiming the selection and characterization of Rhizobium strains in alfalfa and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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5. ANIMAL PRODUCTION AND VEGETATION DYNAMICS IN NATURAL GRASSLANDS UNDER DIFFERENT MANAGEMENT SYSTEMS / PRODUÇÃO ANIMAL E DINÂMICA VEGETACIONAL EM PASTAGEM NATURAL SOB DIFERENTES SISTEMAS DE MANEJO
The trial was accomplished in the Fundação Estadual de Pesquisa Agropecuária (FEPAGRO) in São Gabriel, RS, to evaluate the performance of sheep and lambs in natural grassland, managed with different grazing systems and, pasture improvement with fertilization and introduction of cool season species, and to verify the effects of those different managements
Publicado em: 2006
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6. EFFECTS OF PHYSICAL AND BIOCHEMICAL CHARACTERISTICS OF CONTRASTING LEGUME SWARDS ON SELECTIVE BEHAVIOUR OF GRAZING CATTLE
In order to assess the effects of sward physical characteristics and secondary compound concentration on cattle ingestive behaviour and diet selection, two sets of experiments were carried out using two legumes [birdsfoot trefoil (Lotus corniculatus L.); red clover (Trifolium pratense L.)] with approximately neutral partial preference. The first set investig
Publicado em: 1998
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7. Effect of Dehydration on Leakage and Membrane Structure in Lotus corniculatus L. Seeds 1
Membrane damage as a result of dehydration was studied in Lotus corniculatus L. cv. Carroll seeds which had been pregerminated for 0, 12, and 24 hours prior to dehydration. During reimbibition, desiccation-tolerant (0- and 12-hour) seeds leaked relatively low quantities of all solutes (total electrolytes, potassium, phosphate, sugar, amino acid, and protein)
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8. Herbivore-Induced Defense Response in a Model Legume. Two-Spotted Spider Mites Induce Emission of (E)-β-Ocimene and Transcript Accumulation of (E)-β-Ocimene Synthase in Lotus japonicus1
Indirect defense of plants against herbivores often involves the induced emission of volatile infochemicals including terpenoids that attract natural enemies of the herbivores. We report the isolation and characterization of a terpene synthase cDNA (LjEβOS) from a model legume, Lotus japonicus. Recombinant LjEβOS enzyme produced (E)-β-ocimene (98%) and it
American Society of Plant Biologists.
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9. Effect of Cold Acclimation on Bulk Tissue Electrical Impedance: II. Measurements with Alfalfa and Birdsfoot Trefoil at Nonfreezing Temperatures
Stem and electrode electric impedance at 14 frequencies were monitored during cold acclimation of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.). Cold acclimation significantly increased high frequency (e.g. 1.11 megahertz) resistance and reactance but not low frequency (49 hertz) resistance and reactance of both species. High fre
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10. Effectiveness of Rhizobium Strains Used in Inoculants after Their Introduction into Soil
Rhizobium strains used in inoculants for Trifolium spp., Medicago spp., Glycine max, and Lotus pedunculatus were isolated from nodules of these legumes grown in soils into which the rhizobia had been introduced 4 to 8 years before. Isolations were made from a total of 420 nodules. Nodule occupancy by the inoculant strains varied from 17.7% for a soybean stra
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11. Effect of Cold Acclimation on Bulk Tissue Electrical Impedance: I. Measurements with Birdsfoot Trefoil at Subfreezing Temperatures
The resistive and reactive components of electrical impedance were measured for birdsfoot trefoil (Lotus corniculatus L.) stems at freezing temperatures to −8°C. As temperature decreased the specific resistance at frequencies between 49 hertz and 1.11 megahertz of stems from cold acclimated plants increased more rapidly than from nonacclimated plants. Thi
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12. NopL, an Effector Protein of Rhizobium sp. NGR234, Thwarts Activation of Plant Defense Reactions1
Bacterial effector proteins delivered into eukaryotic cells via bacterial type III secretion systems are important virulence factors in plant-pathogen interactions. Type III secretion systems have been found in Rhizobium species that form symbiotic, nitrogen-fixing associations with legumes. One such bacterium, Rhizobium sp. NGR234, secretes a number of type
The American Society for Plant Biologists.