Blar i NIBIO Brage på forfatter "Johansen, Tor Jacob"
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Agronomic and Metabolomic Side-Effects of a Divergent Selection for Indol-3-Ylmethylglucosinolate Content in Kale (Brassica oleracea var. acephala)
Poveda, Jorge; Velasco, Pablo; de Haro, Antonio; Johansen, Tor Jacob; McAlvay, Alex C.; Möllers, Christian; Mølmann, Jørgen A; Ordiales, Elena; Rodríguez, Víctor M. (Peer reviewed; Journal article, 2021-06-14)Brassica oleracea var. acephala (kale) is a cruciferous vegetable widely cultivated for its leaves and flower buds in Europe and a food of global interest as a “superfood”. Brassica crops accumulate phytochemicals called ... -
Arktisk kvalitet – En beskrivelse av nordlige natur- og klimaforhold og virkning på egenskaper hos nordnorske matprodukter
Johansen, Tor Jacob; Hykkerud, Anne Linn; Uleberg, Eivind; Mølmann, Jørgen (NIBIO RAPPORT;4(40) 2018, Research report, 2018-04-06)Unike nordlige klimaforhold med lange dager og lave temperaturer, kan påvirke egenskaper hos mat, fôr og beitevekster. En gjennomgang av vitenskapelige studier av slik Arktisk kvalitet viser effekter for både sensorisk ... -
Arktisk kvalitet – faglige utfordringer
Martinussen, Inger; Johansen, Tor Jacob (Grønn kunnskap e;9(115A) 2005, Research report, 2005)Arktisk kvalitet kan defineres som positive utslag av nordlig klima og opprinnelse på egenskaper og/eller forventninger til et produkt. Artikkelen gir en oversikt over ulike kvaliteter, eksempler på dokumenterte nordlige ... -
Effects of supplemental LED light quality and reduced growth temperature on swede (Brassica napus L. ssp. rapifera Metzg.) root vegetable development and contents of glucosinolates and sugars
Mølmann, Jørgen A; Hansen, Espen Holst; Johansen, Tor Jacob (Peer reviewed; Journal article, 2020-10-04)BACKGROUND Low growth temperatures and the special light qualities of midnight sun in northern Scandinavia, have both been shown to improve eating quality of swede root bulbs. To study the combined effect of these factors ... -
Fra grasmark til kjølmark - i potet
Schjøll, Annette; Johansen, Tor Jacob; Thöming, Gunda; Møllerhagen, Per (NIBIO Bok;7(1)2021, Chapter, 2021) -
Fysiologisk alder hos settepoteter
Johansen, Tor Jacob (Grønn kunnskap e;9(114) 2005, Research report, 2005)Fysiologisk alder hos settepoteter kan defineres som ”utviklingsstadiet hos en knoll, som er påvirket av kronologisk alder, dyrkings- og lagringsforhold”. Hovedstadiene i denne utviklingen fra fysiologisk ung til gammel ... -
Growth and nitrogen recovery efficiency of potato (Solanum tuberosum) fertilised with shrimp shell pellets
Johansen, Tor Jacob; Samuelsen, Tor Andreas; Øvsthus, Ingunn (Journal article; Peer reviewed, 2019-05-16)In organic plant production, nitrogen (N) availability is often a growth-limiting factor. Under such conditions, off-farm waste-derived nutrient resources may be an alternative to meet the N demand. In this study, we ... -
Influence of high latitude light conditions on sensory quality and contents of health and sensory-related compounds in swede roots (Brassica napus L. ssp. rapifera Metzg.)
Mølmann, Jørgen; Hagen, Sidsel Fiskaa; Bengtsson, Gunnar; Johansen, Tor Jacob (Journal article; Peer reviewed, 2018-02)BACKGROUND Vegetable growers in Arctic areas must increasingly rely on market strategies based on regional origin and product quality. Swede roots (rutabaga) were grown in a phytotron to investigate the effect of high ... -
The Potential for Decision Support Tools to Improve the Management of Root-Feeding Fly Pests of Vegetables in Western Europe
Collier, Rosemary; Mazzi, Dominique; Schjøll, Annette; Schorpp, Quentin; Thöming, Gunda; Johansen, Tor Jacob; Meadow, Richard; Meyling, Nicolai Vitt; Cortesero, Anne-Marie; Vogler, Ute; Gaffney, Michael T.; Hommes, Martin (Peer reviewed; Journal article, 2020-06-13)Several important vegetable crops grown outdoors in temperate climates in Europe can be damaged by the root-feeding larvae of Diptera (Delia radicum, Delia floralis, Chamaepsila rosae, Delia platura, Delia florilega, Delia ... -
Seed Potato Performance after Storage in Light at Elevated Temperatures
Johansen, Tor Jacob; Mølmann, Jørgen (Journal article; Peer reviewed, 2018-03-03)In regions with short growth seasons, it is of great importance to use potato (Solanum tuberosum L.) seed tubers with a high growth vigour and a short growth cycle. Such qualities may be obtained by treatments advancing ... -
Temperature and light conditions at different latitudes affect sensory quality of broccoli florets (Brassica oleracea L. var. italica)
Johansen, Tor Jacob; Mølmann, Jørgen; Bengtsson, Gunnar; Schreiner, Monica; Velasco, Pablo; Hykkerud, Anne Linn; Cartea, Elena; Lea, Per; Skaret, Josefine; Seljåsen, Randi (Journal article; Peer reviewed, 2017-08-30)BACKGROUND Broccoli (Brassica oleracea L. var. italica) is a popular vegetable grown at a wide range of latitudes. Plants were grown in 2009–2011 in pots with standardized soil, irrigation and nutrient supply under natural ...