Hopp til hovedinnholdet

Search

allprojectspublicationssubjectsemployeesserviceseventsnews

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.

2005

To document

Authors

Agnar Hegrenes Svein Ole Borgen

Abstract

No abstract has been registered

Authors

Arne O. Stuanes Live Semb Vestgarden O. Janne Kjønaas

Abstract

No abstract has been registered

Authors

Jørgen Aleksander Mølmann Øystein Johnsen Olavi Junttila Jorunn Elisabeth Olsen

Abstract

No abstract has been registered

Authors

Ola Flaten Gudbrand Lien Martha Ebbesvik Matthias Koesling Paul Steinar Valle

Abstract

No abstract has been registered

Authors

Bjørn Økland Frank Götmark Björn Nordén Niklas Franc Olavi Kurina Alexei Polevoi

Abstract

No abstract has been registered

Authors

C Blödner Tore Skrøppa Øystein Johnsen A Polle

Abstract

No abstract has been registered

Authors

Øystein Johnsen Ola G Dæhlen Geir Østreng Tore Skrøppa

Abstract

Adaptive traits in Picea abies (Norway spruce) progenies are influenced by the maternal temperatures during seed production. Here, we have extended these studies by testing the effects of maternal photoperiod and temperature on phenology and frost hardiness on progenies. Using eight phytotron rooms, seeds from three unrelated crosses were made in an environmental 2 x 2 factorial combination of long and short days and high and low temperatures. The progenies were then forced to cease growth rapidly at the end of the first growing season. An interactive memory effect was expressed the second growth season. Progenies from high temperature and short days, and from low temperatures and long days, started growth later in spring, ceased shoot growth later in summer, grew taller and were less frost hardy in the autumn than their full siblings from low temperatures and short days, and from high temperatures and long days. Norway spruce has developed a memory mechanism, regulating adaptive plasticity by photoperiod and temperature, which could counteract harmful effects of a rapidly changing climate.

Authors

Øystein Johnsen Carl Gunnar Fossdal Nina Elisabeth Nagy Jørgen A.B. Mølmann OG Dæhlen Tore Skrøppa

Abstract

No abstract has been registered

Authors

Toril Drabløs Eldhuset

Abstract

No abstract has been registered

Authors

Ken Olaf Storaunet Jørund Rolstad Ivar Gjerde Vegard Sverre Gundersen

Abstract

No abstract has been registered