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.
2011
Authors
Per Stålnacke Geoffrey Gooch Sekhar Udaya Nagothu Ingrid Nesheim Line Johanne Barkved Bruna Grizzetti Johannes Deelstra Håkon Thaulow Dag BergeAbstract
No abstract has been registered
Authors
Amy M P Oen Barbara Beckingham Upal Gosh Marie Elmquist Kruså RG Luthy Thomas Hartnik Thomas Henriksen Gerard CornelissenAbstract
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Authors
Tatsiana Espevig Michelle DaCosta Lindsey Hoffman Trygve S. Aamlid Anne Marte Tronsmo Bruce B. Clarke Bingru R. HuangAbstract
Field trials at two locations in Norway previously demonstrated differences in winter survival between two Agrostis species used for turf, velvet bentgrass (VB; A. canina L.) and creeping bentgrass (CB; A. stolonifera L.). The objectives of this study were to compare freezing tolerance and crowncarbohydrate composition of VB and CB. We also compared a direct and two indirect methods of measurements of freezing tolerance. Treatments consisted of: (i) nonacclimated (NA); (ii) acclimation at 2°C for 2 wk (A2); (iii) acclimation at 2°C for 4 wk (A4); and (iv) acclimation at 2°C for 4 wk plussubzero acclimation at –2°C for 2 wk (A4+SZA2). Crowns were harvested for determination of carbohydrates and freezing tolerance. Freezing tolerance (lethal temperature for 50% of the test population [LT50]) was based on whole plant survival (WPS), 2,3,5-triphenyltetrazolium chloride (TTC)reduction, and electrolyte leakage (EL). There were no significant difference in freezing tolerance between VB and CB. The LT50 based on WPS was significantly lower for plants exposed to A2 (–12.7°C), A4 (–14.5°C), and A4+SZA2 (–14.6°C) compared to the NA control treatment (–8.4°C). The concentrations of fructans and sucrose were significantly higher in A2 compared to NA plants of both species, but only fructans continued to increase at A4. The LT50 based on TTC reduction showed better correlation with LT50 based on WPS compared to LT50 values based on EL.
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Authors
Jan Mulder J. G. Zhu Peter Dörsch L.E. Sørbotten Jannes Stolte T. Larssen L. Duan X.S. Zhang Y.H. WangAbstract
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Authors
M. Bastani Esther Bloem A. Malehmir Helen K. French L.B. Pedersen A. Godio M. Wehrer J. KammAbstract
No abstract has been registered