Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2015
Authors
Callum Aidan Stephen Hill James Ramsay Barry GardinerAbstract
No abstract has been registered
Authors
Anne Kjersti Uhlen Jon Arne Dieseth Shiori Koga Ulrike Böcker Bernt Hoel James A Anderson Anette Aamodt MoldestadAbstract
The aim of this study was to investigate variation in protein content and gluten viscoelastic properties in wheat genotypes grown in two mega-environments of contrasting climates: the southeast of Norway and Minnesota, USA. Twelve spring wheat varieties, nine from Norway and three HRS from Minnesota, were grown in field experiments at different locations in Norway and Minnesota during 2009e2011. The results showed higher protein content but lower TW and TKW when plants were grown in Minnesota, while the gluten quality measured as Rmax showed large variation between locations in both mega-environments. On average, Rmax of the samples grown in Minnesota was higher than those grown in Norway, but some locations in Norway had similar Rmax values to locations in Minnesota. The data showed inconsistent relationship between the temperature during grain filling and Rmax. Our results suggest that the weakening effect of low temperatures on gluten reported in this study are caused by other environmental factors that relate to low temperatures. The variety Berserk showed higher stability in Rmax as it obtained higher values in the environments in Norway that gave very weak gluten for other varieties.
Abstract
In Norway domestic sheep are mostly kept on mountain pastures over summer. Previous studies have shown that climate conditions affect the growth of mountain grazing lambs in contrasting ways. We analysed a data-set from the Tjøtta Research farm in northern Norway comprising weights and growth of 8696 lambs over 17 years. The lambs grazed coastal or a mountain pasture, 15 km apart. We found that the lambs grew faster when grazing the mountain pasture. Spring and integrated Normalized Difference Vegetation Index (NDVI) affected only the lambs grazing in the mountains. Winter conditions (North Atlantic Oscillation) and summer temperature had a positive effect on growth in both pastures while spring temperature and spring NDVI were important only in the mountains. The positive effect of spring NDVI suggests that the mountain pasture will produce bigger lambs under future climate warming, while the lambs on the coastal pasture will be less affected.
Abstract
No abstract has been registered
Authors
Till Seehusen Trond Børresen Bjørn Inge Rostad Heiner Fleige Alexander Zink Rainer Horn Hugh RileyAbstract
No abstract has been registered
Authors
Tor-Einar Skog Berit Nordskog Håvard Eikemo Halvard Hole Annette Folkedal Schjøll Jan Netland Nina Trandem Trond Rafoss Richard MeadowAbstract
No abstract has been registered
Authors
Ketil HaarstadAbstract
The plant P uptake from sewage sludge and biochar was investigated in pot experiments after manipulating the waste pH by mixing with acidic compost leachate or high pH concrete waste at two levels. Available P was measured both wit passive DGT samplers and by P uptake in rye grass during three harvests. The treatment pH in waste was about 4 after waste was mixed with leachate, and 11.5 with concrete waste. The pH in the pot during grass production was approximately 6.5. The P uptake was significantly higher in the treated biochar pots, both after high and low pH treatment. The more extreme pH treatments gave the highest uptake. The DGT uptake gave the same broad picture for pots with biochar but not for pots with sludge. DGT uptake showed less diffenece between high and low pH treatments. The passive samplers correlated relatively well with the measured grass uptake.
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Callum Aidan Stephen HillAbstract
No abstract has been registered