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.
2018
Abstract
submittedVersion
Authors
Rene Schils Jørgen E. Olesen Kurt-Christian Kersebaum Bert Rijk Michael Oberforster Valery Kalyada Maksim Khitrykau Anne Gobin Hristofor Kirchev Vanya Manolova Ivan Manolov Mirek Trnka Petr Hlavinka Taru Palosuo Pirjo Peltonen-Sainio Lauri Jauhiainen Josiane Lorgeou Helene Marrou Nikos Danalatos Sotirios Archontoulis Nandor Fodor John Spink Pier Paolo Roggero Simona Bassu Antonio Pulina Till Seehusen Anne Kjersti Uhlen Katarzyna Zylowska Anna Nierobca Jerzy Kozyra Joao Vasco Silva Benvindo Martins Macas José Coutinho Viorel Ion Jozef Takác M. Ines Minguez Henrik Eckersten Lilia Levy Juan Manuel Herrera Jürg Hiltbrunner Oleksii Kryvobok Oleksandr Kryvoshein Roger Sylvester-Bradley Daniel Kindred Cairistiona F.E. Topp Hendrik Boogaard Hugo de Groot Jan Peter Lesschen Lenny van Bussel Joost Wolf Mink Zijlstra Marloes P. van Loon Martin K. van IttersumAbstract
No abstract has been registered
Authors
Trygve S. Aamlid Oiva Niemelainen Klaus Paaske David Widmark Pentti Ruuttunen Auli KedonperaAbstract
Greenkeepers are looking for alternatives to fungicides for control of turfgrass diseases. Our objective was to evaluate a petroleum- derived spray oil with a blue-green pigment for control of Microdochium patch/pink snow mold (Microdochium nivale) on golf course putting greens with various durations of snow cover. The spray oil was applied at rates 27 or 54 L ha–1 every third week from late August or September to December, either alone, in tank mixture with potassium phosphite (3 kg PO3 ha–1) or in tank mixture with half rate of fungicides approved for turf, in five 1-yr trials in the Nordic countries. The oil was as effective or more effective than fungicides and gave, on average, 94 and 98% disease control at rates 27 and 54 L ha–1, respectively. Tank mixtures with half rate of prochloraz + propioconazole and fludioxonil did not increase disease suppression in a trial with 79 d snow cover. Phosphite reduced disease severity in one trial only and did not improve disease control or turfgrass quality when tank-mixed with the oil. The pigment in the spray oil was highly persistent and improved turfgrass greenness except in a trial where the combination of oil and ice cover gave a transitory black color at ice melt. Another trial with long snow cover showed a drop in turfgrass quality in spring as the spray oil prevented normal green-up. In conclusion, this research shows that a spray oil has the potential to reduce fungicide use on Nordic golf courses.
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Eivind Vangdal Iren Lunde Knutsen Kristin Kvamm-LichtenfeldAbstract
European plums are susceptible to fruit cracking close to harvest. Heavy rainfall may lead to extensive damages leaving open wounds in the fruit flesh. In addition, cuticular fractures were found. Plum cultivar and stage of maturity are two major factors affecting the susceptibility to cracking. In order to reduce the plums’ susceptibility to cracking plum trees were treated with foliar fertilization during the growing season. Experiments included treatment with boron, calcium and nitrogen. Experiments including treatments with different levels of foliar fertilization did not show clear correlations between treatments and cracking in all cultivars. However, in some cultivars, more cuticular fractures were observed in fruits from nitrogen treated trees and less fractures in fruit from calcium or boron treated trees. In these experiments foliar fertilization with nitrogen, calcium or boron did not affect the amount of visible cracks in fruit significantly. Foliar fertilization is often shown to delay ripening. Even though fruit samples were picked at the same maturity stage, the effect of reduced cracking due to boron and calcium treatments could be partly an effect of differences in maturity. To make sure the fruits would develop fractures, unripe plum fruits on the trees were kept in a plastic bag with zip-lock and a few mL of water (to obtain 100% RH) for one week (from two to one week prior to estimated harvest date). In this way, the susceptibility of fruits on trees treated differently could be observed.
Authors
Line JohansenAbstract
No abstract has been registered