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| Registros recuperados: 1.409 | |
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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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| NIAB,. |
| This study aimed to study varieties of cabbage, carrots, parsnips, potatoes and swedes under organic conditions and to determine significant factors in the organic production systems that affect variety performance. Additional investigations were carried out with potatoes to study the effects of blight and potato cyst nematode. All trials were conducted on UKROFS registered sites and to appropriate organic husbandry standards. Measurements and assessments followed guidelines used for conventional trials, with quality criteria being based upon the requirements of the retail trade. Any assessment of colour and shape would be in line with established charts and descriptions. Results of the study will provide advice and recommendations to organic growers for... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation Vegetables. |
| Ano: 1996 |
URL: http://orgprints.org/6797/1/Varieties_for_Organic_Production_and_Marketing_0FO110.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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| Lammerts van Bueren, E.T.; Hulscher, M.; Jongerden, J.; Ruivenkamp, G.T.P.; Haring, M.; van Mansvelt, J.D.; den Nijs, A.M.P.. |
| In general, the characteristics of organic varieties - and by extension of organic plant breeding - differ from that of conventional breeding systems and conventional varieties. Realising an organic plant breeding system and subsequently steering it to meet changing demands is no less than a mammoth task. The many actions to be undertaken can be divided into short-term commercial and scientific activities, and longer or long-term commercial and scientific activities. Action must be taken in the short-term to ensure adequate quantities of organically propagated plants and seed. This is vital in consideration of Regulation 2092/91/EC which states that, as of 1 January 2000, all propagating material used in organic production must be of organic origin.... |
| Tipo: Report |
Palavras-chave: Breeding; Genetics and propagation Values; Standards and certification. |
| Ano: 1999 |
URL: http://orgprints.org/1419/1/g24.pdf |
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| Hagel, I.. |
| Wenn heute im biologisch-dynamischen Anbau für konventionelle Verhältnisse gezüchtete Sorten und deren Produkte in der Vermarktung Verwendung finden, muß gefragt werden, ob diese hinsichtlich der Ernährungsqualität den an sie gestellten Erwartungen entsprechen. Vor allem der Weizen mit seinen speziellen Proteineigenschaften hat in den letzten Jahrzehnten bedeutende Veränderungen erfahren, speziell im Hinblick auf (back-) technologische Eigenschaften. Ob diese förderlich für die Menschen sind, ist z.B. angesichts der immer stärker um sich greifenden Weizenallergien und unverträglichkeiten fraglich. Immer wieder werden Erfahrungen von Weizenallergikern berichtet, wonach die Toleranz der Betroffenen gegenüber Produkten aus (dem züchterisch... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Breeding; Genetics and propagation Cereals; Pulses and oilseeds. |
| Ano: 1999 |
URL: http://orgprints.org/2189/1/2189%2Dhagel%2Di%2D1999%2Dprotqual%2Dle.pdf |
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| Grossmann, Cand. agro. Freya. |
| Grundet et nyt EU-direktiv skal alle økologiske landmænd i EU fra 2001 udelukkende anvende økologisk fremavlede frø. Da Danmark er førende på området, og hvidkløver er den vigtigste afgrøde på de økologiske gårde, er der behov for at øge dyrkningen. Der er imidlertid en række dyrkningsmæssige faktorer, der tilsammen er årsag til meget lave udbytter i de økologiske frømarker. Denne opgave omhandler disse faktorer, med særlig vægt på at undersøge vækstregulering, bestøvning og angreb af hvidkløversnudebillens larvers betydning for frøudbyttet. Faktorerne er analyseret ved litteraturstudie, og desuden blev der udtaget hvidkløverhoveder fra et parcelforsøg opstillet ved SJF-Flakkebjerg. På baggrund af de hovedanalyser der blev foretaget, blev der... |
| Tipo: Thesis |
Palavras-chave: Breeding; Genetics and propagation Pasture and forage crops. |
| Ano: 1999 |
URL: http://orgprints.org/212/1/bachelor.doc |
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| Hagel, I.; Bauer, D.; Haneklaus, S.; Schnug, E.. |
| Introduction: Assessment of product quality is of special significance in organic farming and includes the supervision of crop quality in different growing systems (e.g., Fleck et al. 1998) and the characterisation of different cultivars. Several methods have been developed and applied for this purpose, e.g., the physico-chemical analysis of crops, picture forming methods (PFMs) and plant observation. So far only limited information is available on the comparability of these methods. This contribution aims to compare the results of the analysis of physico-chemical parameters of summer and autumn carrots with features determined by PFMs by means of correlation analysis. Conclusions: High and significant correlation coefficients were found between... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Vegetables Breeding; Genetics and propagation Specific methods. |
| Ano: 2000 |
URL: http://orgprints.org/2191/1/2191%2Dhagel%2Di%2D2000%2Dcarrot%2Difoam.pdf |
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| Neuhoff, Daniel; Eisele, J. A.. |
| Le contrôle des mauvaises herbes en culture céréalière nécessite une rotation raisonnée mais également une bonne gestion de la lutte mécanique. De ce point de vue, la manière la plus efficace pour contrôler les mauvaises herbes est l’usage de la bineuse. Pratiquement, cette méthode est désavantageuse car elle nécessite de larges interlignes (plus de 17 cm) et un rythme de travail réduit. L’étrille par contre est moins efficace mais implique moins de contraintes techniques. Soulignons que ces deux méthodes dépendent largement des conditions météorologiques et sont coûteuses (temps, carburant, machines). Une méthode indirecte permettant de contrôler les adventices consiste dans l’augmentation du pouvoir de compétition de la plante cultivée face aux... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Cereals; Pulses and oilseeds. |
| Ano: 2000 |
URL: http://orgprints.org/1383/1/1383%2Dneuhoff%2D2000%2Dfranz%C3%B6s.pdf |
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| Borgen, Anders. |
| I afhandlingen beskrives principperne for økologisk plantebeskyttelse og der argumenteres for, at en plantesygdom som stinkbrand primært bør forebygges frem for at blive bekæmpet i et økologisk dyrkningssystem. Stinkbrandens biologi analyseres med henblik på at finde mulige forebyggende dyrkningsmetoder. Endvidere undersøges mulige bekæmpelsesmetoder, som er tilpasset økologisk jordbrug. Det konkluderes, at der findes forebyggende metoder, og at det er sandsynligt, at en systematisk udnyttelse af disse vil kunne forhindre hovedparten af problemerne med sygdommen. Det konkluderes endvidere, at der er muligheder for bekæmpelse i økologisk jordbrug, som kan bruges som sikkerhedsnet under dyrkningssystemet. I afhandlingen gengives 6 eksperimentelle... |
| Tipo: Thesis |
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation Cereals; Pulses and oilseeds. |
| Ano: 2000 |
URL: http://orgprints.org/263/1/Ph.D.%2Dafhandling.pdf |
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| Registros recuperados: 1.409 | |
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