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.
2025
Forfattere
Jian Liu Faruk Djodjic Barbro Ulén Helena Aronsson Marianne Bechmann Lars Bergström Tore Krogstad Katarina KyllmarSammendrag
No abstract has been registered
2024
Sammendrag
No abstract has been registered
Forfattere
Csilla FarkasSammendrag
The impact of tillage-induced temporal variability of soil hydraulic properties on soil water regime was evaluated using measurements and modelling. The measurements were performed in a long-term tillage experiment representing conventional and soil-conserving tillage systems, including no-tillage. It was shown that accounting for the seasonal dynamics of soil hydraulic properties improves the SWAP soil water content simulation results.
Forfattere
Csilla Farkas Moritz Shore Christoph Schürz Dominika Krzeminska Anne-Grete Buseth Blankenberg Robert Barneveld Attila Nemes Michael Strauch Felix Witing Martin VolkSammendrag
No abstract has been registered
Forfattere
Hanne MæhreSammendrag
No abstract has been registered
Forfattere
Edward Richard ForbesSammendrag
Faba bean production in Norway is increasingly important for securing protein self-sufficiency for both food and feed, while improving soil quality and reducing reliance on nitrogen fertiliser. In recent years, damage from the Broad Bean Weevil, Bruchus rufimanus, has threatened Norwegian faba bean quality, and is expected to increase as the cultivation of faba bean grows nationally year on year. As faba bean varieties differ in their phenological, chemical and morphological properties, it is expected that some are more attractive to B. rufimanus adults in search of feeding and egg laying opportunities upon emerging from winter diapause than others, and therefore that the number of adults found per plot during flowering and the seed infestation rate will vary across varieties. Heat treatments, effective against storage insects in other crops, are proposed as a potential control method for B. rufimanus. In addition to direct damage, fungal pathogens have been shown to enter seeds via holes from B. rufimanus infestation causing further damage to germination rates and quality for food and feed. The findings in this study aim to test methods and conclusions already found in the literature using varieties grown commonly in Norway and in Norwegian conditions. Four sub studies were done as part of this study: a) field counts of adult B. rufimanus in 15 faba bean varietiesduring flowering in 2024 at Vollebekk research farm in Ås, Norway, b) assessment of seed infestation rates in the same varieties by counting seeds with and without insect exit holes with data from 2022 and 2024 and comparison with yield component data and tannin and vicin/convicin content, c) evaluation of heat treatments (40 °C for 16.5 hours vs. room temperature on B. rufimanus mortality, and (d) analysis of fungal infestation rates and species in seeds with and without B. rufimanus entrance holes by plating seeds onto agar and observing growth of mycelia visually and with light microscopy. Results showed significantly more adults were observed in early varieties than late varieties, with an average of 0.4 adults and 0.1 adults respectively per plot across the whole season, with the highest number in early varieties observed on the first sampling date, June 6th. The number of adults found in the field plots did not correlate with the infestation rate. B. rufimanus mortality rates, all ranging from 80-100%, did not significantly differ between drying at 40 °C for 16.5 hours compared with room temperature. Fusarium avenaceum and Botrytis fabae were found in respectively of faba bean seeds containing entrance holes of B. rufimanus but not in uninfested seeds, though not at a statistically significant level. However, seeds without an entrance hole showed a significantly higher rate of infection with unidentified mould fungi compared to those with. These findings suggest that growing early together with late varietiesleads to a significantly higher infestation in early varieties, though it is unclear there would be differences in infestation rate of fields with only an early or late variety. The inconclusive heat treatment results highlight the need for further experiments with varying temperatures and a larger sample size. More Fusarium avenaceum and Botrytis fabae in seeds with entrance holes fits with the literature, and the higher rate of unidentified mould infection in seeds without entrance holes may be due to induced resistance. Theconclusions may be useful as a basis for further research into strategies for control of B. rufimanus in Norwegian conditions, as well as further research into the specific fungal species that can follow seed infestation in Norway. Follow up studies could focus on comparing additional seed antinutrient levels and yield components measured during the growing season to B. rufimanus infestation rates based on exit holes.
Sammendrag
No abstract has been registered
Sammendrag
No abstract has been registered
Sammendrag
No abstract has been registered
Sammendrag
No abstract has been registered