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| Speiser, Bernhard; Stolze, Matthias; Oehen, Bernadette; Gessler, Cesare; Weibel, Franco P.; Bravin, Esther; Kilchenmann, Adeline; Widmer, Albert; Charles, Raffael; Lang, Andreas; Stamm, Christian; Triloff, Peter; Tamm, Lucius. |
| The aim of this study was to provide an ex ante assessment of the sustainability of genetically modified (GM) crops under the agricultural conditions prevailing in Switzerland. The study addressed the gaps in our knowledge relating to (1) the agronomic risks/benefits in production systems under Swiss conditions (at field and rotation/orchard level), (2) the economic and socio-economic impacts associated with altered farming systems, and (3) the agro-ecological risks/benefits of GM crops (at field and rotation/orchard level). The study was based on an inventory of GM crops and traits which may be available in the next decade, and on realistic scenarios of novel agricultural practices associated with the use of GM crops in conventional, integrated, and... |
| Tipo: Journal paper |
Palavras-chave: Breeding; Genetics and propagation Policy environments and social economy Switzerland. |
| Ano: 2012 |
URL: http://orgprints.org/22237/1/Speiser-etal-2012-GM-Impact-AgronomSustainDev-33-1-p21-61.pdf |
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| Bertschinger, Lukas; Mouron, Patrik; Dolega, Ewa; Höhn, Heinrich; Holliger, Eduard; Husistein, Alfred; Schmid, Andi; Siegfried, Werner; Widmer, Albert; Zürcher, Matthias; Weibel, Franco. |
| In 1995, an experiment was planted at Wädenswil for comparing organic and integrated apple production. The overall goal of this experiment was to develop a data set which allows for an objective overall comparison of the two production concepts. Horticultural, ecological and economical traits were looked at. In practical terms, the study should particularly clarify how suitable the two systems are for producing marketable fresh fruit under Swiss conditions. The approach of an on-station comparison with a split-plot design with 3 replicate blocks and the factors “production system” (1st factor) and “variety” (2nd factor) was chosen. Ninety-four percent of Swiss apple acreage is managed according to integrated production, and 5% according to organic... |
| Tipo: Book chapter |
Palavras-chave: Fruit and berries. |
| Ano: 2004 |
URL: http://orgprints.org/3111/1/bertschinger%2Det%2Dal%2D2004%2Dcomparison%2Dapple%2Dproduction.pdf |
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| Widmer, Albert; Kockerols, Katharina; Gölles, Michael. |
| Shading with nets of 2 m and 3 m width respectively, which reduce the photosynthetic active radiation by 74%, lead to successful fruit thinning of apple trees. In field trials, three days of shading reduced fruits per 100 flower clusters to a satisfactory extent for Golden Delicious (if shading occurred after 19, 26 and 33 days after full bloom (DAFB)) and Topaz (if shading occurred after 19 and 26 DAFB). For Elstar, seven days shading at 25 DAFB resulted in a good thinning effect. However, practicability of the method in commercial orchards has to be improved. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Fruit and berries. |
| Ano: 2009 |
URL: http://orgprints.org/14083/1/Widmer_14083.pdf |
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