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Plant production

Hebeisen Th., Ballmer Th., Wüthrich R., Dupuis B.

Reaction of newly registered potato varieties to different nitrogen supplies

In 2008 and 2009, in field trials at the Changins-Nyon (Vaud canton) and Zurich-Reckenholz sites, respectively, the two research stations of Agroscope Changins-Wädenswil ACW and Agroscope Reckenholz-Tänikon ART investigated the varietyspecific nitrogen (N) requirement of the potato varieties Gourmandine, Jelly, Laura and Lady Jo (the latter at Changins only). The N levels varied from 0…
Plant production

Hategekimana A., Schneider D., Fossati D., Mascher F.

Performance and nitrogen efficiency of Swiss wheat varieties of the 20th century

The average wheat yield in Switzerland has increased from 13dt/ha in 1850 to 60dt/ha today. The present study investigates the factor variety in this spectacular yield improvement. Yield, yield components and nitrogen efficiency efficacy of seven Swiss wheat varieties released between 1926 and 2003 and the French variety Caphorn (released in 2001) have been studied…
Plant production

Boessinger M., Python P.

Factors influencing the nutrient and mineral content of ventilated dry forage

AGRIDEA has assembled the results of its annual forage survey (nutrient, mineral and trace elements content) undertaken between 2005 and 2009. Data of 1077 samples of ventilated dry forage were used in a statistical analysis to detect the various influences of factors such as year, region, altitude and botanical composition on the nutrient and mineral…
Plant production

Rüegg J., Total R., Jermini M., Scettrini S., Wohlhauser R., Wolf S., Sanderson G.

Crop-adapted crop protection measures in high-growing greenhouse vegetables

Currently the grower of glasshouse crops such as tomatoes, cucumbers, eggplants or sweet pepper does not have a clear guidance on how to adapt the dosage of fungicides, insecticides or acaricides to his growing crops. In most cases the total leaf area of the crop represents the target area for the application of crop protection…
Plant production

Bänziger I., Zanetti S., Hebeisen T., Graff L., Vogelgsang S.

Fifteen years of organic cereal seed health analyses at Agroscope ART

Investigations on organically produced cereal seed over the past 15 years have shown the importance of the control of seed-borne diseases. Although disease pressure depends on annual fluctuations caused by the weather, infestation with common and dwarf bunt (Tilletia caries/T. controversa) has increased in the last few years, with the former primarily occurring on spelt…
Plant production

Boller B., Tanner P., Schubiger F.

Pastor – a new red clover suitable for grazing

For the first time, a red clover variety bred and tested especially for its suitability for grazing is available to Swiss agriculture. Named Pastor, this variety traces back to crosses between an ecotype stemming from the canton of Jura, and Mattenklee breeding material. The new variety is characterised by a lower, flatter growth habit and…
Plant production

Silvestri G., Egger S.

Robust varieties crucial for fireblight control

The loss of traditional apple orchards, also due to fire blight outbreaks, is threatening the supply of the Swiss cider industry in high quality cider apples. Fireblight tolerant varieties are a key-factor in a sustainable disease-management. They not only ensure the availability of high quality cider apples, but also help to maintain traditional orchards, playing…
Plant production

Musa T., Jenny E., Forrer H.-R., Vogelgsang S.

Fusaria and mycotoxins in grain maize in Switzerland

Between 2008 and 2010, Agroscope Reckenholz- Tänikon ART conducted a first Swiss-wide monitoring of commercial grain maize samples. The aim was to determine the occurrence and impact of different Fusarium species in order to assess the potential risk of mycotoxin contamination. In addition, we evaluated the potential influence of different cropping factors in order to…
Plant production

Vogler U., Baur R.

ProfiGemüse CH – a new network as integrated project of ProfiCrops

ProfiGemüse CH, which is an integrated project of ProfiCrops, aims to strengthen the competitiveness of swiss vegetable producers in the market. In order to reach this goal, the acquisition of knowledge related to technical aspects of the production and business related knowledge will be promoted and transferred into practice. Though, the interconnection of existing competences…
Plant production

Sauer-Kesper C., Lucia N., Buser H., Vogler U.

The new biotype Nr:1 of the currant lettuce aphid: its distribution and impact on Swiss lettuce production

The currant lettuce aphid, Nasonovia ribisnigri (Mosley) is the most common aphid species on field-grown lettuce in Europe. Cultivation of lettuce varieties, resistant to the currant lettuce aphid (possessing the resistance Nr:0), was an important tool to control Nasonovia in the crop, until the plant resistance was broken down. In 2007, the currant lettuce aphid…
Plant production

Kuske S., Schweizer C., Kölliker U.

Microbial pollen beetle control: initial experience gained in Switzerland

Pollen beetle control without insecticides presents a major challenge to organic farming. There are currently no effective options available for controlling infestations in bioproduction or cultivation conforming to IP-SUISSE guidelines. An insecticidal fungusbased method was tested to assess the potential of microbial pest control strategies. Domestic isolates of Beauveria bassiana, found as natural pathogens on…
Plant production

Foetzki A., Winzeler M., Boller T., Felber F., Gruissem W., Keel C., Keller B., Mascher F., Maurhofer M., Nentwig W., Romeis J.

Field trials with genetically modified powdery mildew-resistant wheat

The benefits and environmental risks of genetically modified (GM) spring wheat with improved powdery mildew resistance were investigated on two field sites by a consortium of Swiss research groups from 2008 to 2010. GM wheat lines with specific powdery mildew resistance and general fungal resistance were compared with control lines, commercial wheat varieties, and with…
Plant production

Breitenmoser S., Dubuis N., Grillot L., Brodard J., Balmelli C.

Viral diseases of oilseed rape in Switzerland

In Switzerland, the rape is grown mainly on the Plateau, from Geneva to Thurgovie. With 15 000 ha cultivated, it is one of the predominant crops in our rotation-culture system. The majority is cultivated as autumn rape, sown at the end of August. In some of our neighboring countries, such as Germany and France, viruses…
Plant production

Frick R., Mosimann E., Suter D., Hirschi H.

Sainfoin and birdsfoot trefoil variety trials (2008 – 2010)

From 2008 through 2010, Agroscope Reckenholz-Tänikon ART and Agroscope Changins-Wädenswil ACW research stations tested three varieties of sainfoin and five varieties of birdsfoot trefoil. The parameters assessed were forage yield, juvenile development, vigour, competitive ability, persistence, resistance to leaf diseases and winter conditions and the ability for cultivation at higher altitudes. For each variety, an…
Plant production

Naef A., Mouron P., Höhn H.

Sustainability rating of crop protection strategies in apple production

Future plant protection strategies should be efficacious, economic and environmentally acceptable. TheSustainOS methodology has been developed to assess the sustainability of crop protection strategies in apple orchards. The methodology consists of a system description structure, an assessment step for subcriteria of sustainability and an aggregation of these subcriteria to an overall sustainability. The method has…
Plant production

Bravin E., Blunschi M., Leumann M., Straub U., Hirrle T., Hanhart J., Hollenstein R., Steinemann B.

Action research: Fruit growers search for solutions

The objective of the Interreg project «Fruit management» is to improve the management competences of fruit growers in the lake Constance region. 90 Swiss and German fruit growers identified their future challenges. By using the action research, fruit growers identified theses challenges and searched for solutions in working groups. These informations will be collected and…
Plant production

Suter D., Frick R., Hirschi H.-U.

Results of red fescue and crested dogstail variety trials

From 2008 to 2010, the Agroscope Reckenholz-Tänikon ART and Agroscope Changins-Wädenswil ACW research stations tested new breeds and recommended varieties of red fescue and crested dogstail. The evaluation of the varieties was based on systematic observations of yield, vigour, juvenile development, competitive ability, winter hardiness, resistance to leaf diseases and the ability for cultivation at…
Plant production

Zanetti S., Hebeisen T.

Seed certification in Switzerland (2005-2010)

An annual average of over 50,000 tons of seed and propagation material was produced in Switzerland between 2005 and 2010. Seed certification and the seed testing laboratory at Agroscope Reckenholz- Tänikon ART Research Station help ensure that the quality of the seed produced in Switzerland is flawless and that variety-specific characteristics are retained throughout the…
Plant production

Oehl F., Jansa J., Ineichen K., Mäder P., van der Heijden M.

Arbuscular mycorrhizal fungi as bio-indicators in Swiss agricultural soils

The majority of agricultural crops as well as wild plants form a symbiotic relationship with a special group of soil fungi, the arbuscular mycorrhizal fungi (AM fungi). AM fungi perform important functions in all ecological systems colonised by plants. They form a dense network of fungal hyphal mycelia in the soil and transmit vital nutrients…
Plant production

Egger S., Höhn H.

Tree fruit extension in close cooperation with stakeholders

The description of extension activities for fruit-growing at ACW Research Station since 2004 shows how stakeholders needs have been systematically integrated in applied research by implementing a well structured annua process, both in priority-setting and evaluation of projects. Extension is expected to cover the whole range of topics arising in practice, be it varieties and…
Plant production

Charles R., Cholley E., Frei P., Mascher F.

Crop rotation, soil tillage, variety and fungicide protection in cereal production

Within the framework of long-term experiment devoted to cereal production, the factors variety and fungicide protection were added during three years (2006, 2008 and 2010) to the factors crop rotation and soil tillage already studied since 1967. This complement aimed at evaluating the influence of the cropping system on the development of diseases on winter…
Plant production

Suter D., Frick R., Hirschi H.U.

Meadow fescue variety trials: testing the performance of old and new

From 2008 to 2010, Agroscope Reckenholz- Tänikon ART and Agroscope Changins-Wädenswil ACW Research Stations tested altogether 18 varieties of meadow fescue, including 13 new cultivars, in comparative variety trials at seven locations. The varieties were assessed on the basis of systematically recorded yield, plant stock quality, early growth, competitiveness, persistence, winter hardiness, resistance to leaf…
Plant production

Charles R., Cholley E., Frei P.

Crop rotation, soil tillage, variety and fungicide protection in cereal production

Within the framework of long-term experiment devoted to cereal production, the factors variety and fungicide protection were added during three years (2006, 2008 and 2010) to the factors crop rotation and soil tillage already studied since 1967. By this complement, the aim was to evaluate to what extent variety disease tolerance and fungicide protection may…
Plant production

Calanca P., Smith P., Holzkämper A., Ammann C.

Reference evaporation and its application in agrometeorology

Climate change places the agriculture in front of new challenges. An assessment of the water requirement of grassland, pasture and arable land on the basis of the evapotranspiration potential plays a central role in the planning of adaptation measures. The reference evaporation, a concept introduced in the 1990’s by the Food and Agriculture Organization (FAO)…

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