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Registros recuperados: 8
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Evidence for male-produced aggregation pheromone in american palm weevil, Rhynchophorus palmarum (L.) (Coleoptera : Curculionidae) Inra
Rochat, D.; Gonzalez V., A.; Mariau, D.; Villanueva G., A.; Zagatti, P..
Field trapping of the American palm weevil (APW),Rhynchophorus palmarum, showed that the combination of caged male APWs and palm stem was much more attractive to APWs of both sexes than palm stem alone. Caged female APWs did not enhance the attractiveness of the palm. Caged APWs without palm stem were not attractive. Virgin laboratory-bred males were highly attractive to APWs of both sexes in a two-choice pitfall olfactometer, whereas virgin laboratory-bred females were not. Adsorbenttrapped volatiles from virgin laboratory-bred males reproduced the effect of living males, giving evidence for a male-produced aggregation pheromone in this species. Wild-mated APWs of both sexes were as responsive to the aggregation pheromone as virgin laboratory-bred APWs....
Tipo: Journal Article Palavras-chave: COLEOPTERE; CURCULIONIDAE; PHERONOME D'AGREGATION; ETUDE EN LABORATOIRE; RYNCHOPHORUS; ETUDE EN CHAMP AGGREGATION PHEROMONE; FIELD TRAPPING; LABORATORY BIOASSAY; COLEOPTERA; CURCULIONIDAE; RHYNCHOPHORUS PALMARUM.
Ano: 1991 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9500008194043695&uri=/notices/prodinra1/2010/11/
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Experiments on the poisoning of honeybees by insecticidal and fungicidal sprays used in orchards National Institute of Agronomic Research
Butler, C.G.; Finney, D.J.; Schiele, P..
Losses of bees by poisoning have been greatly increased in recent years by the growing practice of applying insecticidal and fungicidal sprays to fruit trees. Preliminary laboratory tests showed that, of the common constituents of spray mixtures, only lead arsenate and flowers of sulphur were likely to cause serious honeybee poisoning, though Derris emulsion may cause slight poisoning. Syrup containing lime sulphur, nicotine sulphate, or copper sulphate was strongly repellent to the bees. It seemed possible that spray mixtures might be made repellent to the honeybee by the addition of suitable substances. Further trials showed that lead arsenate solution, at least in the concentrations normally used, was no more attractive to the bee than distilled water....
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; SOCIAL INSECT; POLLINATOR; HYMENOPTERA; APOIDEA; APIDAE; APIS MELLIFERA; POISONING; INSECTICIDE; FUNGICIDE; LABORATORY TEST; DEVICE; LEAD ARSENATE; SULPHUR; LIME SULPHUR; NICOTINE SULPHATE; REPELLENT; CALCIUM ARSENATE; ORCHARD; APPLE; LETHAL DOSE; TOXICITY; WATER; ABEILLE DOMESTIQUE; INSECTE SOCIAL; POLLINISATEUR; HYMENOPTERA; APOIDEA; APIS MELLIFERA; APIDAE; INTOXICATION; INSECTICIDE; FONGICIDE; ETUDE EN LABORATOIRE; APPAREILLAGE; ARSENIATE DE PLOMB; SOUFRE; CHAUX DE SOUFRE; SULFATE DE NICOTINE; REPULSIF; ARSENIATE DE CALCIUM; VERGER; POMMIER; DOSE LETALE; TOXICITE; EAU.
Ano: 1943 URL: http://hdl.handle.net/2174/358
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Experiments on the poisoning of honeybees by insecticidal and fungicidal sprays used in orchards National Institute of Agronomic Research
Butler, C.G.; Finney, D.J.; Schiele, P..
Losses of bees by poisoning have been greatly increased in recent years by the growing practice of applying insecticidal and fungicidal sprays to fruit trees. Preliminary laboratory tests showed that, of the common constituents of spray mixtures, only lead arsenate and flowers of sulphur were likely to cause serious honeybee poisoning, though Derris emulsion may cause slight poisoning. Syrup containing lime sulphur, nicotine sulphate, or copper sulphate was strongly repellent to the bees. It seemed possible that spray mixtures might be made repellent to the honeybee by the addition of suitable substances. Further trials showed that lead arsenate solution, at least in the concentrations normally used, was no more attractive to the bee than distilled water....
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; SOCIAL INSECT; POLLINATOR; HYMENOPTERA; APOIDEA; APIDAE; APIS MELLIFERA; POISONING; INSECTICIDE; FUNGICIDE; LABORATORY TEST; DEVICE; LEAD ARSENATE; SULPHUR; LIME SULPHUR; NICOTINE SULPHATE; REPELLENT; CALCIUM ARSENATE; ORCHARD; APPLE; LETHAL DOSE; TOXICITY; WATER; ABEILLE DOMESTIQUE; INSECTE SOCIAL; POLLINISATEUR; HYMENOPTERA; APOIDEA; APIS MELLIFERA; APIDAE; INTOXICATION; INSECTICIDE; FONGICIDE; ETUDE EN LABORATOIRE; APPAREILLAGE; ARSENIATE DE PLOMB; SOUFRE; CHAUX DE SOUFRE; SULFATE DE NICOTINE; REPULSIF; ARSENIATE DE CALCIUM; VERGER; POMMIER; DOSE LETALE; TOXICITE; EAU.
Ano: 1943 URL: http://hdl.handle.net/2174/358
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Méthodologie d'inventaire des ressources halieutiques en milieu récifal : rapport d'un stage effectué dans le lagon calédonien IRD
Nguyen, F..
Dans ce rapport sont présentés les résultats d'un stage de recherche effectué au laboratoire d'océanographie du centre ORSTOM de Nouméa du 23 juin au 7 juillet 1989. Sont présentées successivement la campagne à la mer et l'étude des échantillons récoltés en laboratoire. (Résumé d'auteur)
Tipo: Text Palavras-chave: LAGON; RESSOURCES HALIEUTIQUES; CAMPAGNE OCEANOGRAPHIQUE; ENGIN DE PECHE; CONTENU STOMACAL; CROISSANCE; OTOLITHE; CAPECHADE; ETUDE EN LABORATOIRE.
Ano: 1990 URL: http://www.documentation.ird.fr/hor/fdi:31188
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The effects of position on hatching of honey bee eggs in the laboratory National Institute of Agronomic Research
Dietz, Alfred.
Studies were made to determine the incidence of hatching of honey bee, Apis mellifera L., eggs incubated in various positions. Petri dishes with basal layers of wax, paraffin, or drone foundation were used as supporting surfaces for eggs. The lowest successful hatching incidence was 58% for eggs kept in the inverted position; the highest incidence was 67% in an ordinary prone position. The averagc hatching incidence of 62% shows that hatching is not influenced strongly by the position of the egg. Eggs placed into petri dishes but without regard to their position showed an average of 78% hatchability. The resulting larvae, reared artificially on larval food, showed normal growth and development. Excessivc shaking or bumping does not appear to affect...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; EGG; ABEILLE; APIDAE; APIS MELLIFERA; OEUF; ECLOSION; ETUDE EN LABORATOIRE; MANIPULATION; POSITION.
Ano: 1964 URL: http://hdl.handle.net/2174/512
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Tolérance protoplasmique et activité de la phosphoénol pyruvate carboxylase foliaire de cultivars de mil soumis à des contraintes hydriques contrôlées IRD
Louguet, P.; Canale, N.; Desagher, S.; Contour-Ansel, D.; Laffray, D..
Deux cultivars de mil, résistant et sensible, ont été soumis à des contraintes hydriques en conditions contrôlées. Lors de la contrainte, l'activité de la phosphoénolpyruvate carboxylase (PEPC) décroît, chez les témoins arrosés, de 20 à 30 % de sa valeur initiale (effet de sénescence) et de 50 à 60 % chez les stressés. La quantité d'enzyme dosée par immunotitration décroît également. Cependant, l'activité spécifique de la PEPC rapportée à la quantité d'enzyme diminue aussi. La réhydratation est suivie d'une récupération partielle et progressive des activités et des quantités de PEPC. Le pourcentage d'inhibition de l'enzyme par le malate chute de 50 à 20 % pendant la contrainte hydrique ce qui témoigne aussi d'une modification des propriétés de l'enzyme....
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; MIL; PLANTE CULTIVEE; DEFICIT HYDRIQUE; CULTIVAR; SENSIBILITE RESISTANCE; ACTIVITE ENZYMATIQUE; ENZYME; SECHERESSE; REHYDRATATION; ETUDE EXPERIMENTALE; PHOSPHOENOLPYRUVATE CARBOXYLASE; ETUDE AU CHAMP; ETUDE EN LABORATOIRE.
Ano: 1993 URL: http://www.documentation.ird.fr/hor/fdi:38963
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Über ein weiteres Versetzungsexperiment zur Analyse des Zeitsinnes und der Sonnenorientierung der Honigbiene National Institute of Agronomic Research
Renner, Max.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; WATER RESSOURCE; BEHAVIOUR; LIGHT; TEMPERATURE; TIME SENSE; EXTERNAL FACTOR; LABORATORY EXPERIMENT; ORIENTATION; SUN; ABEILLE DOMESTIQUE; INSECTE SOCIAL; EAU; COMPORTEMENT; LUMIERE; TEMPERATURE; TEMPS; FACTEUR EXTERNE; ETUDE EN LABORATOIRE; ORIENTATION; SOLEIL.
Ano: 1959 URL: http://hdl.handle.net/2174/395
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Variations sous contrainte hydrique de la teneur en acides aminés libres foliaires du mil IRD
Moulineau, C..
L'analyse des acides aminés libres foliaires a permis d'établir une relation entre la résistance à la contrainte hydrique et les modifications du métabolisme azoté chez deux populations de mil (HKP et IC 30). L'acide aminé majoritaire dans les plantes témoins est l'alanine. La contrainte hydrique s'accompagne d'une diminution de la teneur en alanine et d'une augmentation de la teneur en proline. Ces phénomènes sont exacerbés dans le cas de plantes cultivées en conditions contrôlées par rapport aux plantes cultivées sur le terrain. Les deux populations possèdent des réponses à la contrainte hydrique assez semblables. La compensation entre l'accumulation et la disparition d'acides aminés en relation avec la diminution du contenu relatif en eau des plantes...
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; MIL; PLANTE CULTIVEE; DEFICIT HYDRIQUE; COMPOSITION CHIMIQUE; FEUILLE; ACIDE AMINE; VARIATION; METHODE D'ANALYSE; ETUDE EXPERIMENTALE; ETUDE AU CHAMP; ETUDE EN LABORATOIRE.
Ano: 1993 URL: http://www.documentation.ird.fr/hor/fdi:38964
Registros recuperados: 8
Primeira ... 1 ... Última
 

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