Blar i forfatter "Hytönen, Timo"

Viser treff 1-4 av 4

    • Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods 

      Faehn, Corine Alexis; Reichelt, Michael; Mithöfer, Axel; Hytönen, Timo; Mølmann, Jørgen Alexander Barosen; Jaakola, Laura Elina (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-10)
      Background Though many abiotic factors are constantly changing, the photoperiod is a predictable factor that enables plants to time many physiological responses. This timing is regulated by the circadian clock, yet little is known about how the clock adapts to the differences in photoperiod between mid-latitudes and high latitudes. The primary objective of this study was to compare how clock gene ...

    • Altered regulation of TERMINAL FLOWER 1 causes the unique vernalisation response in an arctic woodland strawberry accession 

      Koskela, Elli A.; Kurokura, Takeshi; Toivainen, Tuomas; Sønsteby, Anita; Heide, Ola M; Sargent, Daniel J.; Isobe, Sachiko; Jaakola, Laura; Hilmarsson, Hrannar; Elomaa, Paula; Hytönen, Timo (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-16)
      <p>Vernalisation requirement is an agriculturally important trait that postpones the development of cold‐sensitive floral organs until the spring. The family Rosaceae includes many agriculturally important fruit and berry crops that suffer from crop losses caused by frost injury to overwintering flower buds. Recently, a vernalisation‐requiring accession of the Rosaceae model woodland strawberry ...

    • Gibberellin mediates daylength-controlled differentiation of vegetative meristems in strawberry (Fragaria × ananassa Duch) 

      Junttila, Olavi; Hytönen, Timo; Elomaa, Paula; Moritz, Thomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2009-02-11)
      Background: Differentiation of long and short shoots is an important developmental trait in several species of the Rosaceae family. However, the physiological mechanisms controlling this differentiation are largely unknown. We have studied the role of gibberellin (GA) in regulation of shoot differentiation in strawberry (Fragaria × ananassa Duch.) cv. Korona. In strawberry, differentiation of ...

    • Influence of Arctic light conditions on crop production and quality 

      Mølmann, Jørgen A; Dalmannsdottir, Sigridur; Hykkerud, Anne Linn; Hytönen, Timo; Samkumar, Amos; Jaakola, Laura (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-10)
      The natural light conditions above the Arctic Circle are unique in terms of annual variation creating special growth conditions for crop production. These include low solar elevations, very long daily photosynthetic light periods, midnight sun/absence of dark nights, and altered spectral distribution depending on solar elevation. All these factors are known to affect the growth and the metabolism ...