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.
2024
Sammendrag
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Forfattere
Trygve S. Aamlid Sigridur Dalmannsdottir Marit Jørgensen Kristoffer Herland Hellton Akhil Reddy Pashapu Ievina Sturite Mallikarjuna Rao Kovi Helga Amdahl Carl Gunnar Fossdal Odd Arne RognliSammendrag
Timothy ( Phleum pratense L.) is the predominant forage grass species in the northern parts of the Nordic region. Because of the long andharsh winters and a short growing season, most of it with continuous light, the need for locally adapted timothy seed has been recognizedfor more than a century. However, the seed production of timothy in these marginal environments is unpredictable with acceptable seedyield and quality on average only every third year. Thus, a multiplication scheme for the northern cultivars was established with only pre-basic seed produced in the north, and basic and certified seed produced further south to secure enough seed of good quality. In recentdecades this scheme has been more or less abandoned with continous generations produced in the south. Farmers are complaining andare questioning whether the cultivars has changed and lost winter hardiness. We studied freezing and ice-encasement tolerance of generations of the the northern timothy cultivars ‘Engmo’ (old landrace) and ‘Noreng’(synthetic) multiplied for one, two or three generations in Central, Southern and Northern Norway. The trials introduce very largedifferences in mean temperature, growing degree days and photoperiod between place of parental origin and sites of multiplication so theeffects on fitness observed could arise from both selection and and induced epigenetic changes. Large changes (loss) in freezing and ice-encasement tolerance were observed, especially at the southern location in the first generation.The cultivars behaved differently and there were significant interactions. The extreme phenotypic changes observed might be explained bygenetic selection or epigenetic memory of the environmental conditions experienced during seed production, or a combination of the two.We are currently analysing GBS data of all generations and this will be used to test whether genetic shifts has occured during themultiplication in the different environments.
Forfattere
Trygve S. Aamlid Kristine Sundsdal Victoria Stornes Moen Geir Kjølberg Knudsen Paula Izabella Lawicka Ellen Johanne Svalheim Ove Hetland Elise Krey PedersenSammendrag
Engsmelle (Silene vulgaris) er en flerårig urt i nellikfamilien. Siden engsmelle er rask i utvikling, tåler rimelig næringsrik jord og lar seg frøhøste med skurtresker, er den også med i NIBIOs robustfrøblandinger for pollinatorsoner på Sørøstlandet og i Innlandet.
Forfattere
Trygve S. Aamlid René Ciuk Geir Kjølberg Knudsen Paula Izabella Lawicka Kristine Sundsdal Victoria Stornes Moen Ove Hetland Ellen Johanne Svalheim Elise Krey PedersenSammendrag
Rød jonsokblom (Silene dioica) er en flerårig urt i nellikfamilien. Siden rød jonsokblom tåler næringsrik jord og lar seg frøhøste med skurtresker, er den med i NIBIOs robustfrøblandinger for pollinatorsoner på Sørøstlandet og vil fra 2025 også komme med i robustfrøblandinga for Midt-Norge.
Forfattere
Trygve S. Aamlid Sigridur Dalmannsdottir Ievina Sturite Marit Jørgensen Geir Kjølberg Knudsen Nils Ragnar S. Skjørholm Trond Olav PettersenSammendrag
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Forfattere
Pia Heltoft Thomsen Karin Juul Hesselsøe Hannesson Bjarni Karin Normann Per Rasmussen Michelle DaCosta Eric Watkins Andrew Hollman Anne Friederike Borchert Trygve S. Aamlid Tatsiana Espevig Trond Olav Pettersen Jørgen HornslienSammendrag
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Forfattere
Attila Nemes Trond Haraldsen Lorna Dawson Monica Jayesingha Johanna Skrutvold Maria Dietrich Sigrid Esmeralda ArnestadSammendrag
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Sammendrag
This study investigated the effects of substrates composed of various ratios of wood fiber and peat (0, 25, 50, 75, and 100% peat (v/v)) mixed with different amounts of lime (0, 2, 4, 6, and 8 g L−1) and start fertilizer (0, 2, and 4 g L−1 Multimix) on the growth and biomass accumulation of petunia (Petunia x hybrida Vilm ‘Finity F1 Purple’) and basil (Ocimum basilicum L. ‘Marian’) in an ebb-and-flow greenhouse system. Growth parameters included plant height, weight, canopy diameter, and chlorosis symptoms for petunia, along with substrate pH and EC measurements. Petunia showed optimal growth in substrates with higher peat content, while basil produced satisfactory biomass across a pH range of 5–7 regardless of substrate type. Optimal petunia cultivation in 100% wood fiber required a significant dose of start fertilizer without lime. Monitoring pH and EC using pour-through and press methods revealed a pH decrease in substrates with added start fertilizer, while substrates with higher wood fiber content were less acidic. Substrates with over 50% (v/v) wood fiber without lime showed a rapid pH increase over five weeks. The pour-through method generally underestimated EC values compared to the press method. These findings contribute to optimizing the wood fiber/peat blends for sustainable horticulture.
Sammendrag
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Sammendrag
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