White Clover
Mostrando 13-24 de 66 artigos, teses e dissertações.
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13. Manejo de coberturas do solo e de plantas espontâneas em pomar orgânico de maçã. / Soil cover and weed management in na organic apple archard.
The demand for healthy and non-contaminated foods has increased between the consumers that become more and more exigent in terms of quality. The organic products appear as an option for the requirements of these consumers. However, research involving the organic production of fruits is still incipient. Thus, this study was carried out to evaluate the weed co
Publicado em: 2007
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14. ELEPHANTGRASS PASTURES, MIXED WITH REYGRASS, SPONTANEOUS GROWTH SPECIES AND WHITE CLOVER OR PEANUT FORAGE MANAGED WITH DAIRY CATTLE / PASTAGENS DE CAPIM-ELEFANTE, CONSORCIADAS COM AZEVÉM, ESPÉCIES DE CRESCIMENTO ESPONTÂNEO E TREVO BRANCO OU AMENDOIM FORRAGEIRO, MANEJADAS COM BOVINOS LEITEIROS
A utilização do capim-elefante (Pennisetum purpureum, Schum.) sob pastejo, basicamente é feita sob a estratégia convencional, sendo estabelecido de forma singular. Informações e pesquisas sobre seu uso em pastagens consorciadas são escassas. Assim, o objetivo deste trabalho foi avaliar a dinâmica, o valor nutritivo e o comportamento de vacas lactante
Publicado em: 2007
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15. Seleção de rizóbios para trevo branco / Selection of rhizobia for white clover
Devido à grande extensão das áreas de várzea no estado Rio Grande do Sul, a implantação de leguminosas forrageiras de inverno que possuam a capacidade de fixação simbiótica de nitrogênio (FBN), como o trevo branco, constitui-se em uma ótima alternativa para aumentar os índices de produtividade destas áreas. Porém, esse benefício só pode ser o
Publicado em: 2007
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16. Introdução de uma mistura de três espécies forrageiras de inverno em pastagem irrigada de capim-aruana. / Introduction of a mixture of three winter forage species in an irrigated aruanagrass pasture.
No Instituto de Zootecnia, Nova Odessa, SP, em uma pastagem de capim-aruana (Panicum maximum Jacq. cv. Aruana) utilizada com ovinos em sistema intensivo de produção (irrigação, adubação e lotação rotacionada), foram sobre-semeadas as espécies forrageiras de inverno: aveia preta (Avena strigosa Schreb cv. Comum), azevém anual (Lolium multiflorum Lam
Publicado em: 2003
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17. 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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18. Sugar-Binding Activity of Pea Lectin Expressed in White Clover Hairy Roots.
Introduction of the pea (Pisum sativum L.) lectin (PSL) gene into white clover (Trifolium repens L.) hairy roots facilitates nodulation by the nitrogen-fixing bacterium Rhizobium leguminosarum biovar viciae, which normally nodulates pea and not white clover (C.L. Diaz, L.S. Melchers, P.J.J. Hooykaas, B.J.J. Lugtenberg, and J.W. Kijne [1989] Nature 338: 579-5
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19. Sym plasmid genes of Rhizobium trifolii expressed in Lignobacter and Pseudomonas strains.
A 14-kilobase (kb) fragment of Rhizobium trifolii Sym plasmid containing nodulation (nod) genes or the pSym plasmid of R. trifolii cointegrated with a broad-host-range vector R68.45 (pPN1) were transferred to Lignobacter strain K17 and Pseudomonas aeruginosa strain PAO5 by conjugation. Lignobacter transconjugants carrying Sym plasmid pPN1 formed nodules on w
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20. Towards Development of an Edible Vaccine against Bovine Pneumonic Pasteurellosis Using Transgenic White Clover Expressing a Mannheimia haemolytica A1 Leukotoxin 50 Fusion Protein
Development of vaccines against bovine pneumonia pasteurellosis, or shipping fever, has focused mainly on Mannheimia haemolytica A1 leukotoxin (Lkt). In this study, the feasibility of expressing Lkt in a forage plant for use as an edible vaccine was investigated. Derivatives of the M. haemolytica Lkt in which the hydrophobic transmembrane domains were remove
American Society for Microbiology.
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21. Influence of White Clover Mosaic Potexvirus Infection on the Endogenous Cytokinin Content of Bean
The cytokinin content in the primary leaves of bean (Phaseolus vulgaris) was monitored for 10 d after inoculation with white clover mosaic potexvirus. The cytokinins were isolated, purified, separated by high-performance liquid chromatography, and quantified by radioimmunoassay. The cytokinins detected at the time of inoculation (d 0) were: (a) the free base
American Society of Plant Physiologists.
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22. Nucleotide sequence of a white clover alcohol dehydrogenase cDNA.
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23. Incompatibility in Autotetraploid White Clover II. Dominance and Double Reduction
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24. Receptor Site on Clover and Alfalfa Roots for Rhizobium
Sites on white clover and alfalfa roots that bind Rhizobium trifolii and R. meliloti capsular polysaccharides, respectively, were examined by fluorescence microscopy. Fluorescein isothiocyanate-labeled capsular material from R. trifolii bound specifically to root hairs of clover but not alfalfa. Binding was most intense at the root hair tips. Treatment of cl