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| Fritz, Jürgen; Athmann, Miriam; Meissner, Georg; Köpke, Ulrich. |
| Nine encoded wine samples from a German long-term field trial on the comparison of different cultivation systems were examined with the image forming methods biocrystallization, capillary dynamolysis and circular chromatography. The images of the encoded samples were i. differentiated into three groups of images with similar form expression, ii. characterised as ‘fresh – aged’ based on a catalogue of reference images, iii. ranked (according to the quality characterization) and iv. assigned to the different cultivation systems (classified). Images gained with samples from integrated farming showed more structures indicating enhanced aging compared with the samples from organic and especially from biodynamic origin. Based on these observations, a correct... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2014 |
URL: http://orgprints.org/24044/1/24044_Fritz%20et%20al_MM.pdf |
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| Meissner, Georg; Döring, Johanna Renate; Kauer, Randolf; Stoll, Manfred; Schultz, Hans-Rainer. |
| World wide many wine farms are converting into organic or biodynamic viticulture. The main reasons are better wine quality and healthier wine with the long-term aim of sustainability in viticulture. In 2005 a long-term study started in Geisenheim. The objective of the research program is to investigate, compare and optimise the techniques of integrated, organic and particularly biodynamic wine production in terms of resource protection and food quality. The goals of this study are to look at the effects on the biological and microbial activity in the soil, the vegetative and generative growth of the vine, microbiology, the grape and wine quality and the sustainability of the three viticultural systems. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Viticulture. |
| Ano: 2013 |
URL: http://orgprints.org/21547/1/21547_meissner.pdf |
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| Fritz, Jürgen; Athmann, Miriam; Meissner, Georg; Köpke, Ulrich. |
| Nine encoded wine samples from a German long-term field trial on the comparison of different cultivation systems were examined with the image forming methods biocrystallization, capillary dynamolysis and circular chromatography. The images of the encoded samples were i. differentiated into three groups of images with similar form expression, ii. characterised as ‘fresh – aged’ based on a catalogue of reference images, iii. ranked (according to the quality characterization) and iv. assigned to the different cultivation systems (classified). Images gained with samples from integrated farming showed more structures indicating enhanced degradation compared with the samples from organic and especially from biodynamic origin. Based on these observations, a... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2015 |
URL: http://orgprints.org/27103/1/27103_fritz.pdf |
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| Döring, Johanna Renate; Kauer, Randolf; Meissner, Georg; Stoll, Manfred; Löhnertz, Otmar; Frisch, Matthias. |
| Based on a field trial, the impact of three different viticultural management strategies on vigour and grapevine physiology of Vitis vinifera cv. Riesling was compared. The vines were planted in 1991 at Geisenheim (Rheingau, Germany) and three different management strategies i.e. integrated (code of good practice), organic (European Union Regulation 834/07 and ECOVIN standard) and biodynamic (European Union Regulation 834/07 and DEMETER standard) were established in 2006. Even though all treatments received the same level of nutrients and water a decline in vigour, expressed as lateral growth, was observed for the organic and biodynamic treatment during three seasons (2010 to 2012). During dryer conditions (2011) a reduction of physiological activity... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Viticulture. |
| Ano: 2013 |
URL: http://orgprints.org/21541/1/21541_doering.pdf |
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