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| Registros recuperados: 808 | |
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| Haas, Guido; Friedt, Wolfgang. |
| Zum Thema "Nährstoffeffizienz" liegt ein weites Spektrum wissenschaftlicher Untersuchungen der verschiedensten Fachgebiete vor. In diesem Beitrag wurden die vorhandenen Untersuchungsergebnisse anhand von zwei Formen der Charakterisierung nährstoffeffizienter Sorten strukturiert. Einerseits wird mit dem deskriptiven Ansatz eine Beurteilung der Ertragsleistungen einer Sorte in verschiedenen Nährstoff-Umwelten in den Vordergrund gestellt. Hieraus ist eine direkte Selektion unter Freilandbedingungen abzuleiten. Andererseits wurde eine analytische Charakterisierung formuliert, aus der eine indirekte Selektion von nährstoffeffizienten Eigenschaften als sekundäre Merkmale zu entwickeln ist. Die Vielzahl möglicher morphologischer, anatomischer und physiologischer... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems Breeding; Genetics and propagation. |
| Ano: 1990 |
URL: http://orgprints.org/13942/1/NeffZuchtGump90.pdf |
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| Karutz, Christine. |
| Introduction 1 Why is genetic engineering rejected? 1.1 Instinctive and emotional rejection 1.1.1 Instinct and appetite 1.1.2 Intuitive feeling for the boundaries of the ecosystem 1.1.3 Concern for health 1.1.4 The older the better 1.1.5 Reverence 1.1.6 Sacred DNA 1.2 Rational rejection 1.2.1 Motives of the practitioners of genetic engineering 1.2.2 Opposing global power concentration 1.3 Rejection of the scientific approach to genetic engineering 1.3.1 Scepticism regarding the application of atomism to living things 2 If genetic engineering is to be opposed where is the border line between 'still allowed' and 'forbidden'? 2.1 Steps in plant breeding from mass selection to genetic engineering 2.2 Where do we draw the line? 2.3... |
| Tipo: Working paper |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 1998 |
URL: http://orgprints.org/4855/1/karutz.htm |
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| Karutz, Christine. |
| 0 Einführung 1 Warum wird Gentechnik abgelehnt? 1.1 Instinktive und gefühlsmässige Ablehnung 1.1.1 Instinkt und Appetit 1.1.2 Gespür für die Grenzen der Ökosysteme 1.1.3 Sorge um die Gesundheit 1.1.4 Je älter, desto besser 1.1.5 Ehrfurcht 1.1.6 Die heilige DNA 1.2 Rationale Ablehnung 1.2.1 Motive der Gentechnik-Betreiberinnen 1.2.2 Anti-Macht 1.3 Ablehnung des wissenschaftlichen Ansatzes der Gentechnik 1.3.1 Skepsis gegenüber der Anwendung des Atomismus im Lebendigen 2 Wo wäre bei Ablehnung der Gentechnik in der Pflanzenzüchtung eine Grenze zwischen "noch erlaubt" und "verboten" zu ziehen? 2.1 Schritte in der Pflanzenzüchtung von der Massenauslese zur Gentechnik 2.2 Mögliche Grenzziehungen 2.3 Weitergehende Fragen... |
| Tipo: Working paper |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 1999 |
URL: http://orgprints.org/4881/1/Karutz%2D1999%2DGentechnik%2Deng.pdf |
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| Moyes, Catherine L.; Dale, Philip J.. |
| This is the final report of MAFF/Defra project OF0157. Genetically modified (GM) crops cannot be released into the environment and used as food, feed, medicines or industrial processing before they have passed through a rigorous and internationally recognised regulatory process designed to protect human and animal health, and the environment. The UK body that oversees standards in organic farming, the United Kingdom Register of Organic Food Standards (UKROFS), has ruled that genetically modified (GM) crops have no role to play in organic farming systems. They, therefore, have concerns about the possibility and consequences of the mixing of GM crops with organic crops. The two main sources of mixing are through pollen and seed. Pollen from GM... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection Regulation Breeding; Genetics and propagation. |
| Ano: 1999 |
URL: http://orgprints.org/8260/1/OF0157_2153_FRP.pdf |
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| Wolfe, Prof Martin. |
| This is the final report of Defra project OF0154. Under the European Union Regulation on the organic production of agricultural products (2092/91), crops raised in organic systems should be grown from organically produced seed or vegetative material. However, the supply of organic seed is limited in the UK and in Europe as a whole, and so by way of derogation, the EU Regulation permits the use of untreated, conventional seed on organic farms only when an appropriate organic variety cannot be sourced. At the start of this project, the derogation period was due to end on 31 December 2000; however, it was extended in June 1999 to 31 December 2003, after which the use of conventional seed will not be permitted on organic farms. To evaluate the current... |
| Tipo: Report |
Palavras-chave: Regulation Markets and trade Breeding; Genetics and propagation. |
| Ano: 2000 |
URL: http://orgprints.org/8105/1/OF0154_2558_FRP.pdf |
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| Fleck, M.; Sikora, F.; Gränzdörffer, M.; Rohmund, C.; Fölsch, E.; von Fragstein, P.; Heß, J.. |
| A field trial with carrots was carried out in 1998 at two sites in Hesse (North: loamy soil in Neu-Eichenberg; East: sandy soil in Queck) to compare 6 open pollinating and 6 F1 hybrids under an Organic Farming regime. Characteristics of cultivation, harvest, quality, and longevity were measured. Of the parameters of cultivation and harvest the hybrids showed a more intensive foliage growth, higher marketable yields (plus 29 and 25%), and more homogeneous taproots than the open pollinating cultivars. Picture forming methods clearly separated the samples into the two groups of breeding methods. The open pollinating cultivars were characterized by higher degrees of form intensity and ripeness and a stable vitality. The hybrids of the sandy site had a better... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Vegetables Breeding; Genetics and propagation. |
| Ano: 2001 |
URL: http://orgprints.org/1163/1/1163%2Dfleck%2Det%2Dal%2D2001%2Dsamen%2Dm%C3%B6hren%2Dwien.pdf |
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| Med denne vidensyntese har FØJO ønsket at fokusere på hele den økologiske produktionsform med henblik på at få en samlet vurdering af den indsats indenfor planteforædling og såsædsproduktion, der er nødvendig for at sikre og fremme den økologiske produktion. To vigtige forudsætninger har været motiverende for igangsætning af dette arbejde. Dels ændringerne i EU-reglerne, hvor der er lukket for national udstedelse af dispensationer for kravet om anvendelse af økologisk såsæd efter 1. januar 2004. Dels det økologiske jordbrugs afvisning af GMO, som betyder at der er behov for at udvikle en fremtidig planteforædling rettet mod økologisk jordbrug, som ikke er baseret på GMO. Formålet med vidensyntesen er at konkretisere behov, muligheder og begrænsninger... |
| Tipo: Report |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2001 |
URL: http://orgprints.org/3041/1/rap_15.pdf |
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| Registros recuperados: 808 | |
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