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.
2006
Authors
Marit SekseAbstract
No abstract has been registered
Authors
Stig Strandli GezeliusAbstract
No abstract has been registered
Abstract
The performances of the plum rootstocks Plumina® Ferlenain, Ishtara® Ferciana, Jaspi® Fereley and the pentaploid open pollinated seedling of Mariana P 8-13 compared with St. Julien A as a standard, for the cultivars "Opal" and "Reine Claude GF 1119" were assessed in a field trial in western Norway at 60" North. This trial was one part of an international plum rootstock trial located in seven European countries and organized from INRA Bordeaux. Trees were planted in spring 1994; spaced 2.0 x 4.0 m and formed with a central leader as free spindles. Soil management was grass in the alleyways and herbicide strips 1-m wide along the tree rows. Tree vigour, yield, fruit size and yield efficiency were evaluated for the seven subsequent years. Tree size was significantly affected by the rootstocks. P 8-13 produced the largest trees for both cultivars as measured by trunk cross-sectional area. The smallest trees were produced on Plumina® Ferlenain for the cultivar `Opal" and on Jaspi® Fereley for `Reine Claude". The cultivar `Opal" was the most productive and gave three times larger crop than "Reine Claude" on average for the six cropping years. The "Reine Claude" trees came two years later into production than "Opal". There were small differences between the different rootstocks in productivity: However, the rootstock Plumina® Ferlenain produced significant lower crop than the other rootstock for `Opal". Trees on Jaspi® Fereley were the most yield efficient for `Opal" and Plumina® Ferlenain for `Reine Claude". The fruit sizes were in general medium to small for both cultivars and became little affected by the different rootstocks. The average fruit size was about 29 g for `Opal" and 22 g for `Reine Claude". Fruit quality characterized by the content of soluble solids was high for `Reine Claude" with average 20 % and 15 % for `Opal" and did not differ much between trees on the various rootstocks.
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
V.V.H. Bloch Ketil Flugsrud Terje Gobakken Gro Hylen Kristin Rypdal Stein Michael TomterAbstract
No abstract has been registered
Editors
Gro HylenAbstract
No abstract has been registered
Authors
Ian K. Toth L Moleleki Leighton Pritchard H Liu Sonia Humphris L Hyman Gunnhild W. Axelsen May Bente Brurberg M Ravensdale E Gilroy Paul R.J. BirchAbstract
No abstract has been registered
Abstract
Potato mop-top virus (PMTV) is the type member of the genus Pomovirus. PMTV is one of the most damaging potato infecting viruses due to the symptoms induced in the tubers. The symptoms caused by PMTV can be similar to the ones induced by another potato infecting virus, Tobacco rattle virus (TRV). Both viruses are known to generate great economic losses in Norway. Since the beginning of 2005, NCRI has as one of its objectives to enhance research on PMTV and will subsequently initiate studies on TRV as well.
Abstract
Organic farming movements have traditionally aimed at a harmonious balance between animal husbandry and crop production on the farm. We bring scientific evidences that this is a prerequisite to maximize the efficiency of nitrogen use. The use of imported feed increases the total nutrient losses to the environment per litre of milk produced.