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.
1998
Abstract
Concentrations of pigments in needles of yellowish Norway spruce (Picea abies (L.) Karst.) trees suffering from either N, Mg or K deficiency in field sites in southeast Norway are reported. The yellowish trees had a considerably lower (roughly 50%) pigment concentration, as well as a lower chlorophyll/carotenoid ratio, compared to the green trees within the same sites. Yellowing was interpreted as a general bleaching of colour, as well as a slight turn from the green (chlorophylls) towards yellow (lutein). Concentrations of pigments were highly intercorrelated. N deficiency was especially associated with low a-carotene concentrations. This was interpreted as a-carotene being the most sensitive pigment to stress. However, this pigment might be specifically sensitive to N deficiency. Carbohydrate concentrations were slightly higher in yellowish trees.
Authors
Aksel GranhusAbstract
No abstract has been registered
1997
Authors
Svein SolbergAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Gro HylenAbstract
No abstract has been registered
Abstract
No abstract has been registered
1996
Authors
Gro HylenAbstract
No abstract has been registered
1993
Authors
Rune EriksenAbstract
No abstract has been registered
Authors
Svein SolbergAbstract
No abstract has been registered
Authors
Svein SolbergAbstract
No abstract has been registered