Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 356
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
A comparison between organic and integrated apple production: First results after 5 years of observation Organic Eprints
Kreuzwieser, Andreas; Kelderer, Markus.
Organic apple production is of increasing commercial importance throughout Europe, but especially in South Tyrol where about 25% of the whole European organic apple crop is produced. In organic apple production, producers face the challenge of choosing varieties that are both in demand and also resistant to the main pests and diseases. Every now and then, the question arises, if yields, losses and profitability are different in integrated and organic orchards and in how great are the differences between single apple varieties. In 1999 the Laimburg Research Centre started a field trial to observe the effects of different cultivation methods on 18 apple varieties in a randomised block design. In the first four years of production, significant...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004 URL: http://orgprints.org/14546/1/43_Kelderer_227_234.pdf
Imagem não selecionada

Imprime registro no formato completo
A primary survey of aphid species on almond and peach, and natural enemies of Brachycaudus amygdalinus in As-Sweida, Southern Syria Organic Eprints
Almatni, W.; Khalil, N..
Syria is one of the biggest almond producer country in the world. Few arthropdes that live on almond are consider as pests. Aphids are one of the major pests their. In order to change the product to organic we should know more about the pests and their natural enemies in order to use better bio- and organic decisions. A field survey was done to aphids that attack Almond and Peach in Al-Arab mountain at As- Sweida governorate, between 2002 and 2006. Three species of aphids were considered as important pests on both trees. They are Brachycaudus amygdalinus and Brachycaudus helichrysi, which are aphids that feed on the young leaves causing stunted growth; and Pterochloroides persicae which is a species that attack the bark and excretes large...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008 URL: http://orgprints.org/13654/1/109%2D115.pdf
Imagem não selecionada

Imprime registro no formato completo
A simulation program for the timing of fungicides to control Sooty Blotch in organic apple growing. First results in 2003 Organic Eprints
Trapman, Marc.
A simulation program for infections by Sooty Blotch was developed based on literature data and expert judgements. The value of the model as tool for timing fungicide sprays to control Sooty Blotch was tested in 2003 in two randomized plot trials, and four “on farm” trials where the treatments where made by the growers. Disease pressure was relative low due to the warm and dry summer of 2003. Two to five post infection treatments with lime sulfur or coconut soap aimed at severe infection periods as indicated by the model provides 72 to 100 % control.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004 URL: http://orgprints.org/14068/1/11_Trapman_56_66.pdf
Imagem não selecionada

Imprime registro no formato completo
A survey of natural parasitism of mirid bugs by parasitoids on apples and pears in Norway Organic Eprints
Jaastad, G.; Trandem, N.; Hovland, B.; Djønne, R. T..
Mirid bugs are important pests in both integrated and organic fruit production. In a survey in 2006 the proportion of mirids parasitized by parasitoids was investigated in 18 Norwegian orchards. More than 50 beating samples were collected from apple and pear orchards under integrated and organic management in different areas of Norway. About 30% of nymphs of the most abundant mirid bug species, Lygocoris pabulinus, Ortholylus marginalis and Psallus ambiguus, were parasitized. Important factors for enhancing biological control in organic fruit production are discussed.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008 URL: http://orgprints.org/13675/1/186%2D190.pdf
Imagem não selecionada

Imprime registro no formato completo
About the use of antagonistic bacteria and fungi Organic Eprints
Tilcher, R.; Schmidt, C.; Lorenz, D.; Wolf, G. A..
Microorganisms isolated from the phylloplane of vine and cereal plants inhibiting different phytopathogenic fungi were tested as biological control agents against Plasmopara viticola (downy mildew of grapevine). Based on screening in vitro against Phytophthora infestans, P. parasitica, Pythium ultimum, Botrytis cinerea 62 bacterial isolates were selected for tests with Plasmopara viticola.. Antifungal bacterial strains were assayed for antagonistic activity towards the grapevine dieback fungus Eutypa lata in vitro and on grape wood.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2002 URL: http://orgprints.org/14616/1/tilcher_142.pdf
Imagem não selecionada

Imprime registro no formato completo
Abwehr von Wühlmausschäden im ökologischen Obstbau Organic Eprints
Walther, B.; Pelz, H.-J..
Wühlmausschäden sind weit verbreitet und gehören zu den nur schwer lösbaren Pflanzenschutzproblemen im ökologischen Landbau. Nach einer Umfrage des Institutes für Nematologie und Wirbeltierkunde der Biologischen Bundesanstalt für Land- und Forstwirtschaft (BBA), im Jahre 2002 waren 90 % der befragten Obstbaubetriebe von Wühlmausschäden betroffen. Als Hauptschadensverursacher treten vor allem die Schermaus (Arvicola terrestris ), auch große Wühlmaus genannt, und die Feldmaus ( Microtus arvalis) auf. Mit den wenigen zur Verfügung stehenden Mitteln erreicht aber nur ein Bruchteil der ökologisch wirtschaftenden Betriebe einen akzeptablen Bekämpfungserfolg. Von Wissenschaft und Industrie werden viele Anstrengungen unternommen, um bekannte Abwehrmaßnahmen zu...
Tipo: Report Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006 URL: http://orgprints.org/15261/1/Walther_und_Pelz%2D2006%2DWuehlmausmerkblatt%2DBLE.pdf
Imagem não selecionada

Imprime registro no formato completo
Abwehr von Wühlmausschäden im ökologischen Obstbau Organic Eprints
Wühlmausschäden gehören zu den am schwierigsten lösbaren Pflanzenschutzproblemen im ökologischen Obstbau. Nach einer Umfrage waren im Jahr 2002 79 % der deutschen Apfelanbaubetriebe von solchen Schäden betroffen. Auf 80 % der Flächen war die Schermaus (A. terrestris) der Hauptschadensverursacher. 61 % der Obstbauern sahen einen hohen Bedarf an der Entwicklung neuer Präventiv- und Bekämpfungsmaßnahmen. Um die Einwanderung von Wühlmäusen in Obstbauflächen zu verhindern, wurde ein mechanisches Barrieresystem entwickelt und an je einem Standort in Baden-Württemberg und Rheinland-Pfalz getestet. An jedem Standort wurden zwei ca. 0,7 ha große Parzellen mit Barrieren aus Drahtgitter (Maschenweite 10 mm) bzw. Polyolefin-Folie umgeben. Zwei ungeschützte...
Tipo: Project description Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2020
Imagem não selecionada

Imprime registro no formato completo
Abwehr von Wühlmausschäden im ökologischen Obstbau Organic Eprints
Walther, Bernd; Pelz, Hans-Joachim.
Wühlmausschäden gehören zu den am schwierigsten lösbaren Pflanzenschutzproblemen im ökologischen Obstbau. Nach einer Umfrage waren im Jahr 2002 79 % der deutschen Apfelanbaubetriebe von solchen Schäden betroffen. Auf 80 % der Flächen war die Schermaus (A. terrestris) der Hauptschadensverursacher. 61 % der Obstbauern sahen einen hohen Bedarf an der Entwicklung neuer Präventiv- und Bekämpfungsmaßnahmen. Um die Einwanderung von Wühlmäusen in Obstbauflächen zu verhindern, wurde ein mechanisches Barrieresystem entwickelt und an je einem Standort in Baden-Württemberg und Rheinland-Pfalz getestet. An jedem Standort wurden zwei ca. 0,7 ha große Parzellen mit Barrieren aus Drahtgitter (Maschenweite 10 mm) bzw. Polyolefin-Folie umgeben. Zwei ungeschützte...
Tipo: Report Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2003 URL: http://orgprints.org/4555/1/4555%2D02OE108%2Dble%2Dbba%2D2003%2Dwuehlmaus.pdf
Imagem não selecionada

Imprime registro no formato completo
Abwehr von Wühlmausschäden im ökologischen Obstbau mit Hilfe von Migrationsbarrieren Organic Eprints
Walther, B.; Pelz, H.-J..
Sowohl im integrierten als auch im ökologischen Obstbau gelingt eine dauerhafte Abwehr von Wühlmausschäden mit den zur Verfügung stehenden Mitteln nur unzureichend. Nach den Ergebnissen einer Umfrage, für die 279 Rückmeldungen ausgewertet wurden, sind 90 % der deutschen Obstbaubetriebe von Wühlmausschäden betroffen. Hauptschadensverursacher ist die Schermaus (Arvicola terrestris), die für Schäden auf 80 % der Flächen verantwortlich gemacht wird.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004 URL: http://orgprints.org/15262/1/Walther_und_Pelz%2D2004%2DBBA%2DMitt.%2DMigrationsbarrieren.pdf
Imagem não selecionada

Imprime registro no formato completo
Alleyway groundcover management and scab resistant apple varieties Organic Eprints
Pedersen , Hanne Lindhard; Bertelsen, Marianne.
The use of scab resistant apple varieties is the best way to prevent inflections of apple scab (Venturia inaequalis). In 1995 the then 10 most promising resistant apple varieties for Denmark where planted at Research Centre Àrslev, Denmark in an organic production system. Three different cover crops where established in the alleyways. Weed cleaning in the tree row was done mechanically and the trees were kept unfertilised. The annual shoot growth, nutrients in leaf sample, mineralised nitrogen in soil, content of water in the upper 50 cm soil, Fruit yield and Fruit quality were assessed. The annual cover crop caused the longest shoot growth, the highest content of nitrogen in leaves and soil, the smallest competition with the trees concerning soil water...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2002 URL: http://orgprints.org/14590/1/lindhard_16.pdf
Imagem não selecionada

Imprime registro no formato completo
Alternativen für Kupfer gegen Schorf auf Jonagold Organic Eprints
Jansonius, P.J.; Bloksma, J.; Heijne, B.; Anbergen, R.H.N..
Copper is currently the strongest fungicide available to organic fruit growers. Unfortunately it is not environmentally safe and it has a bad image with the consumer. As a result, there is pressure to abandon copper altogether. In 1999 the Fruit Research Station FPO and the Louis Bolk Institute carried out a spray trial to assess the potential of various alternatives.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2000 URL: http://orgprints.org/14893/1/18_p.j.jansonius.pdf
Imagem não selecionada

Imprime registro no formato completo
An assessment of apple varieties for their suitability in organic production systems Organic Eprints
Fitzgerald, J.; Cross, J.; Berrie, A.; Cubison, S..
Twenty seven varieties of apple were assessed for their susceptibility to apple scab, mildew and rosy apple aphid in a replicated experiment at East Malling Research. The varieties most affected by mildew were Goldrush, DL11, Liberty, Bohemia and Pinova. Ceeval, Discovery, Edward VII, Howgate Wonder, Rajka, Rebella and Topaz had the lowest incidences of mildew. The highest incidence of scab occurred on Pilot and Pinova, but infestation was low throughout the assessment period. In 2006 when aphid populations were high, Liberty, Goldrush and Delorina had no aphid infestations, and low infestations were seen on Edward VII, Resi and Santana.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008 URL: http://orgprints.org/13682/1/213%2D215.pdf
Imagem não selecionada

Imprime registro no formato completo
An innovative strategy to control codling moth: “ALT'CARPO” Concept Organic Eprints
Romet, L.; Severac, G..
A new device has been developed and tested on 30 hectares in 2007, to protect apples from codling moth Cydia pomonella damages. Different meshes, dates and strategies have been tested, and observations on various orchards give an outstanding efficacy with very few damages at harvest.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008 URL: http://orgprints.org/13717/1/291%2D294.pdf
Imagem não selecionada

Imprime registro no formato completo
Anthonome du pommier: On a enfin trouvé une solution Organic Eprints
Daniel, Claudia; Wyss, Eric; Tschabold, Jean-Luc.
L’anthonome du pommier, qui peut causer localement de gros dégâts, n’avait encore jamais pu être efficacement contré en arboriculture biologique. Un produit efficace est maintenant disponible.
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2005 URL: http://orgprints.org/4567/1/daniel%2Detal%2D2005%2Dbioactualites.pdf
Imagem não selecionada

Imprime registro no formato completo
Apfelschorfbekämpfung 2001 unter besonderer Berücksichtigung der Berostung Organic Eprints
Zimmer, Jürgen.
Im Jahr 2000 konnte überall eine sehr starke Berostung an 'Elstar', 'Jonagold' und anderen Apfelsorten festgestellt werden. Die starke Qualitätsminderung durch Berostung trat jedoch nicht nur in der ökologischern Apfelproduktion sondern auch bei integriert wirtschaftenden Obstbaubetrieben auf. Bei der Ursachensuche wurde häufig Schwefelkalk im Zusammenhang mit Berostung erwähnt. Die Erfahrungen mit Schwefelkalk, die in vielen Versuchen an der Staatlichen lehr- und Versuchsanstalt Ahrweiler gewonnen wurden, deuteten jedoch nicht auf ein starkes Berostungspotential des Schwefelkalkes hin. Jedoch ist der pH-Wert von Schwefelkalk sehr hoch und liegt bei einem Wert von über 12. Alkalische Spritzbrüher werden im Allgemeinen als berostungsfördernd betrachtet. Um...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2002 URL: http://orgprints.org/14604/1/zimmer_86.pdf
Imagem não selecionada

Imprime registro no formato completo
Apple and Pear Cultivars for Organic Production in a Cool Climate Organic Eprints
Røen, Dag; Hjeltnes, Stein Harald; Jaastad, Gunnhild.
Only early ripening cultivars of apples and pears may be grown successfully in the short and rather cool growth season of the fruit producing areas of Norway. Due to a combination of high yield, good fruit quality and scab resistance, the Swedish cultivar ‘Aroma’ is recommended as major cultivar for organic apple production today. ’Philip’ is recommended as cultivar for organic pear production. During 5 years 21 apple cultivars and 15 pear cultivars have been tested in organic orchards in comparison with ‘Aroma’ and ‘Philip’. Several cultivars in the trial are promising for use in organic production.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004 URL: http://orgprints.org/14535/1/33_Roen_179_184.pdf
Imagem não selecionada

Imprime registro no formato completo
Apple scab control with grapefruit seed extract: no alternative to chemical fungicides Organic Eprints
Spitaler, Renate; Marschall, Klaus; Zidorn, Christian; Kelderer, Markus; Zelger, Roland; Stuppner, Hermann.
The growth inhibiting effect of four commercially available grapefruit seed extracts on the causal organism of apple scab Venturia inaequalis was tested. Germination of the conidia of Venturia inaequalis was pronouncedly inhibited by all tested extracts. The commercial products were analyzed by high pressure liquid chromatography and thin layer chromatography. All samples contained at least one preserving agent. These substances were identified as either benzethonium chloride, benzalkonium chloride, methyl parabene or propyl parabene. Freshly prepared extracts from seeds of grapefruits (Citrus paradisi) did not inhibit the germination of Venturia inaequalis. It was therefore concluded that the antifungal effect of grapefruit seed extracts is...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004 URL: http://orgprints.org/14543/1/39_Kelderer_208_211.pdf
Imagem não selecionada

Imprime registro no formato completo
Are organically grown apples tastier and healthier? A comparative field study using conventional and alternative methods to measure fruit quality Organic Eprints
Weibel, F.P.; Bickel, R.; Leuthold, S.; Alfoeldi, T..
Since 1994 important supermarket chains in Switzerland successfully sell apples from verified organic production. However, in supermarkets customers often ask whether there are, apart from a more environmentally friendly production, objective arguments of inner fruit quality that justify the higher prices of organic apples. In a field study with the ‘Golden Delicious’ cultivar, we harvested fruits of 5 pairs of organic/integrated fruit farms. The orchards within the pairs were less than 1 km from each other and were similar in micro climate, soil conditions and planting system. Maximum distance between the pairs was 180 km. To measure inner fruit quality we investigated at the beginning and at the end of cold storage (i) standard parameters (firmness,...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2000 URL: http://orgprints.org/866/1/Acta_IPBio_1998_517_53_%282%29.pdf
Imagem não selecionada

Imprime registro no formato completo
Assay system to screen for compounds inducing PR-gene expression in grape vine (Vitis spec.) Organic Eprints
Seibicke, Tobias; Rügner, Alexander; Neuhaus, Gunther; Kassemeyer, Hanns-Heinz; Buchholz, Günther.
- Abstract in PDF attachment -
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2002 URL: http://orgprints.org/14635/1/buchholz_225.pdf
Imagem não selecionada

Imprime registro no formato completo
Attractive plant volatiles as a control method against apple fruit moth (Argyresthia conjugella Zell.)? Organic Eprints
Jaastad, Gunnhild; Knudsen, Geir K.; Kobro, Sverre; Bäckman, Anna-Carin; Witzgall, Peter; Bengtsson, Marie.
Apple fruit moth, Argyresthia conjugella Zell. (Lepidoptera: Argyresthiidae), is the most important pest of apples in Scandinavia. In years when its primary host, rowan (Sorbus aucuparia L.), has little or no berries for egglaying, female A. conjugella fly into apple orchards to lay their eggs. In some years the entire apple crop can be destroyed. Volatiles from apples and rowan have been collected and identified. In GC-EAD tests females have responded to several compounds found in both rowan and apple. Some of these compounds were used in field trapping tests during 2002, and a mixture of two compounds trapped significantly more females and males compared to control traps. However, field trapping results from 2003 indicate that the two-compound...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004 URL: http://orgprints.org/14025/1/6_Jaastad_29_34.pdf
Registros recuperados: 356
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional