Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2026
Sammendrag
This report presents results from apple cultivar testing at NIBIO Ullensvang during 2016–2024. In total, 23 cultivars and advanced selections were evaluated for flowering, harvest time, yield, tree efficiency, fruit quality, and potential storage performance. Clear differences were found among cultivars in productivity and market suitability. ‘Fonn’ and ‘Jonagold Decosta Robijn’ were the most promising cultivars, combining high and stable yields, good fruit quality, and attractive fruit size. Both of them can be recommended for further commercial testing in a wide scale. Cultivar ‘Santana’ showed value as a niche cultivar because of its stable yield, scab resistance, and suitability for low-allergen and organic production, although its relatively high acidity reduced taste scores. Small fruited cultivar ‘Early Crunch’ produces very tasteful fruits and may have potential in the snack-apple segment.
Forfattere
S. Ellen Macdonald Anne C. S. McIntosh Selena Schut Samuel Bartels Seung-Il Lee Elvira Baisheva Jeff Battigelli Erin Bayne Yves Bergeron Mathieu Bouchard Brendan Casey Mats Dynesius I. Tanya Handa Joakim Hjältén Kristoffer Hylander Matti Koivula Jari Kouki Therese Löfroth Asko Lõhmus Anders Nielsen Sonya Odsen Manuela Panzacchi Jaime Pinzon Peter B. Reich Pavel Shirokikh Ekaterina Shorohova Ilkka Vanha-Majamaa Lisa Venier Tim Work Linhao WuSammendrag
Boreal forests are important reservoirs of biodiversity, carbon and timber stocks. However, timber harvest can alter biodiversity in these forests without clear evidence on the duration needed for biotic groups to recover. Resilience of boreal forest biodiversity to clear-cut harvest was examined with a meta-analysis of 190 datasets from boreal and hemi-boreal forests of Europe/Russia and North America for arthropods, birds, small mammals, lichens, bryophytes and vascular plants. We modelled similarity of community composition between harvested and unharvested stands versus years post harvest. In approximately half of cases, predicted times for recovery to pre-harvest composition were ≤30 years. In other cases, recovery took much longer or had not occurred within the timeframe of our data; for example, in conifer forest: >100 years (bryophytes), >55 years (small mammals), ~95 years (lichens) and ~85 years (vascular plants). Saproxylic beetles showed no resilience within the 16 (conifer forest) or 29 (mixed forest) years post harvest for which we had data. Recovery generally took longer in conifer and mixed than in broadleaf forests, which always showed either resistance (bryophytes, vascular plants) or resilience with recovery within 12–25 years. Conserving biodiversity in boreal forests will require extended rotations, management for ‘old forest’ structural elements and areas protected from harvesting.
Forfattere
Jonathan R. Potts Luca Börger Marlee A. Tucker Federico Ossi Scott W. Yanco Diego Ellis‐Soto Thomas Müller Ruth Y. Oliver Mario H. Alves Walter Arnold Nina Attias Guillaume Bastille‐Rousseau Jerrold L. Belant J. David Blount Dean E. Beyer Francesca Cagnacci Simon Chamaillé‐Jammes Aung N. Chan Eric K. Cole Jessica S. Cornils Rogerio Cunha de Paula Vickie DeNicola Arnaud L. J. Desbiez Sarah R. Dewey David Drake Michael Egan Jasper A. J. Eikelboom Morgan Farmer Mathieu Garel Jacob R. Goheen Hans Peter Hansen Lars Haugaard Mark Hebblewhite Morten Heim Miloš Ježek Lilla Jordán Douglas N. Kamaru Miha Krofel Tayler N. LaSharr Peter Leimgruber Anne Loison Ryan A. Long Matthias‐Claudio Loretto Pascal Marchand Erling Meisingset Joerg Melzheimer Kevin L. Monteith John J. Morgan Rasmus M. Mortensen Rebekka Mueller Atle Mysterud Astrid Olejarz Teresa Oliveira Manuela Panzacchi Ruben Portas Hubert Potočnik Herbert H. T. Prins Laura R. Prugh Nathan Ranc Ralf Roeder Christer Moe Rolandsen Çağan Şekercioğlu Aldin Selimovic Rachel Smiley Erling Johan Solberg Olav Strand Peter Sunde Carole Toïgo Bram Van Moorter Tana L. Verzuh Bettina Wachter Brittany L. Wagler Jesse Whittington Christopher C. Wilmers George Wittemyer Christian RutzSammendrag
Anthropogenic land conversion is putting increasing pressure on wildlife populations around the world. To mitigate impacts, it is necessary to develop a detailed mechanistic understanding of how animals are affected by different types of human activity. A key challenge is to disentangle the effects of static infrastructure, like roads or buildings, and the presence of humans in the landscape. To address this question, we examined if terrestrial mammals altered their movement behaviour around buildings in response to reduced human mobility during COVID‐19 lockdowns. We compiled GPS tracking data from 35 study sites across five continents, for 10 carnivore species and 13 herbivore species, totalling >1 million location records from 586 individuals. For each study, we used integrated step selection analysis to test the extent to which animals changed their avoidance of buildings as lockdown took effect, leveraging the recently released Microsoft MLBuildings dataset of global building locations. Analysis of population‐level effects revealed that, in areas with high Human Footprint Index (HFI), animals tended to show a significant reduction in their avoidance of buildings during lockdown, but not in low HFI areas. No such trend was detected during equivalent periods in years other than 2020, indicating that behavioural changes were a result of reduced human mobility during lockdowns. Overall, our findings suggest that animals living alongside humans exhibit greater plasticity when people change their behaviour, likely indicating the combined effects of environmental filtering and habituation. More generally, our study provides a critical first step towards developing evidence‐based tools for forecasting how wildlife movement behaviour may change in response to different land‐use strategies, human activities, conservation interventions or environmental perturbations.
Sammendrag
Conference paper presenting rumen degradation and in vitro gas production characteristics of grass-clover pulp silage compared with conventional grass-clover silage.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Denne rapporten oppsummerer resultater fra prosjektet ‘RobustRubus’, der det ble undersøkt hvordan temperatur, daglengde og samspillet mellom disse påvirker vegetativ vekst, vekstavslutning, blomsterknoppdanning og kvile i bjørnebær. Forsøkene inkluderte både ettårige og toårige sorter under kontrollerte og naturlige klimaforhold, samt studier av sortenes kjølekrav for å bryte vinterkvile. Resultatene viser betydelige sortsforskjeller, spesielt i blomstringsrespons, kjølekrav og kviledybde. For toårige sorter er høy temperatur viktigere enn korte dager for blomsterdanning, mens klimafaktorer synes å ha mindre betydning for blomsterdanning hos ettårige sorter. Sortstesting i plasttunnel viste at flere sorter er aktuelle for norsk produksjon, med variasjon i avling, bærkvalitet og smak. Riktig sortsvalg og et tilpasset dyrkingssystem er avgjørende for å lykkes med bjørnebærproduksjon med langskudd i Norge. Rapporten gir ny kunnskap som kan bidra til en mer robust og bærekraftig produksjon, og styrking av norsk grøntsektors konkurransekraft.
Sammendrag
Within the EUFRIN apple rootstock trials, seven apple rootstocks are being tested for their resistance to ARD (apple replant disease) in several European countries. The current paper focuses on the effects of rootstock and soil type (ARD vs. fresh soil) on the accumulation of phenolic compounds in apple fruit. This research was performed at the Lithuanian trial site. Accumulation of phenolic compounds in fruit tissues was enhanced in replanted soil. On average, total phenol content in fruit flesh increased by 25%, and in fruit peel by 31%. Hyperoside and rutin in fruit flesh, and hyperoside, reynoutrin, phloridzin, and procyanidin C1 were the most variable among detected phenolic compounds, and their content in fruits from ARD soil was by 50-77% higher than in fruits from the fresh soil. The content of (-)-epicatechin in fruit flesh and (+)-catechin and procyanidin B1 in fruit peel was similar in both ARD and fresh soil. Rootstock had a significant effect on phenolic compound accumulation, but this effect was modified by soil conditions. Soil type had no effect on total phenol accumulation in fruits (flesh and peel) grown on Pajam 2 rootstock. Also, a stable phenol content in fruit flesh was on G.11 and M200 rootstocks, and in fruit peel on G.41. The highest increase of total phenol content at replant conditions was recorded on B.10 (by 66% in flesh and 60% in peel) and on G.935 (by 68% in flesh and 47% in peel) rootstocks.
Sammendrag
The successful introduction of new cultivars requires proper pomological, phenological, and technological evaluation. It is particularly important in the harsh Norwegian climate conditions. Investigations were conducted with apple cultivar ‘Eden’/‘Wursixo’ (WUR 6), to establish an optimal balance between yield, fruit quality, and bearing regularity. Four different crop load levels were tested in 3 consecutive years in the orchard, planted 3.5×1 m and trained as a slender spindle. Lower crop load levels guaranteed good return bloom, a very high share of fruits harvested during the first picking, and larger fruits. Increasing crop load led to less intensive return bloom, smaller fruit sizes, and a higher share of fruits harvested during the second picking. It was found that ‘Eden’ is strictly alternating cultivar and precise crop load levels according to the tree age and tree vigour were defined. In order to keep ‘Eden’ trees in regular bearing mode, crop load levels should be maintained at 4.5-5 fruits cm‑2 of trunk cross-sectional area (TCSA) in the 3rd and 6-7 fruits in the 4th growing season.
Forfattere
Heidi Udnes AamotSammendrag
Det er ikke registrert sammendrag
Sammendrag
NIBIO, avdeling Fôr og husdyr og avdeling Arealundersøkingar, har utført ei vurdering av fjellbeite i to område i midtre del av Hordaland. Arbeidet omfatta ei vurdering av beitekvalitet i høvesvis deler av Stølsheimen, som omfatta Beinhellaren beitelag i Vaksdal, og i Kvitingen i Samnanger som omfatta Ytre Midthordland beitelag. Fyrste del av arbeidet er NIBIO rapport: Fjellbeite i midtre delar av Hordaland Rapport frå synfaring av beiteområda Beinhellaren og Kvitingen. Arbeidet i felt vart gjort i åra 2018, 2019 og 2020. Tilveksten hjå lam på fjellbeite byggjer på materiale frå Sauekontrollen av involverte buskapar, og eigne registreringar av vekt gjort i felt. Ulike beiteplanter vart sanka ved ulike tidspunkt og utviklingsstadium i beitetida i begge beiteområda. Det vart lagt vinn på å sanka dei beiteplantene som ein registrerte og veit at sau/lam har preferanse for. Eit særleg fokus var det på sanking av beiteplanter frå vegetasjonstypen engsnøleie, då utsmelting av snø i mellomalpin sone føregår godt ut på sommaren, gjerne frå juli månad og utover i desse beiteområda. Nygroe av grasartar og storr, m.a. stivstorr i engsnøleie er då næringsrik beitegrøda. Musøyre, som er mykje vanleg i engsnøleie vart undersøkt, og næringsverdien held seg godt og var høg også ved prøvetaking fyrst i september. Vier vart registrert beita, og i kjemiske analysar funne å ha høgt innhald av protein. Næringsverdien var bra til seint i beitetida. Innhaldet av mineral i vier var godt vurdert frå beitesynsstad. Innhaldet av mikromineralet kobolt var høgt i vier, som er positivt for småfe og hjortevilt. Registrert tilvekst hjå lam på fjellbeita i beiteområda Beinhellaren og Kvitingen var god. Tilvekst hjå lam fram til vårveging vart funne hadde sikker positiv verknad på tilveksten på fjellbeite.