Dag-Ragnar Blystad
Wageningen University and Research Centre
45 Papers
112 Citations
Dag-Ragnar Blystad is an academic researcher from Wageningen University and Research Centre. The author has contributed to research in topics: Biology & Plant virus. The author has an hindex of 12, co-authored 35 publications.
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Papers
Artificial light from light emitting diodes (LEDs) with a high portion of blue light results in shorter poinsettias compared to high pressure sodium (HPS) lamps
M. Ashraful Islam,Goutam Kuwar,Jihong Liu Clarke,Dag-Ragnar Blystad,Hans Ragnar Gislerød,Jorunn E. Olsen,Sissel Torre +6 more
TL;DR: The LED did not delay bract color formation, visible cyathia and flowering compared to HPS, and no difference in post production performance between the two light treatments was found, and the effect of end of day-red lighting combination with LED and HPS supplemental lamps during the photoperiod in the greenhouse was investigated.
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Three vitrification-based cryopreservation procedures cause different cryo-injuries to potato shoot tips while all maintain genetic integrity in regenerants.
Biao Wang,Jing-Wei Li,Zhibo Zhang,Ren-Rui Wang,Yan-Li Ma,Dag-Ragnar Blystad,E. R. Joachim Keller,Qiao-Chun Wang +7 more
TL;DR: The results reported here suggest that vitrification-based cryo-procedures can be considered promising methods for long-term preservation of potato genetic resources.
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Impact of end-of-day red and far-red light on plant morphology and hormone physiology of poinsettia
M. Ashraful Islam,Danuše Tarkowská,Jihong Liu Clarke,Dag-Ragnar Blystad,Hans Ragnar Gislerød,Sissel Torre,Jorunn E. Olsen +6 more
TL;DR: In this paper, the effect of manipulation of the phytochrome system at the EOD on elongation growth and hormone metabolism in poinsettia was investigated and the results showed that shoot elongation and internode lengths were reduced 34-54% by exposure to 30min EOD-R compared to 30 min EOD -FR, both provided by light emitting diodes.
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Lettuce big-vein virus: mechanical transmission and relationships to tobacco stunt virus
TL;DR: Results obtained corroborate the assumption that these particles are the virions of lettuce big-vein virus, which resembles tobacco stunt virus in mechanical transmissibility, instability in sap and symptoms on N. occidentalis.
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Characterisation of a novel Emaravirus identified in mosaic‐diseased Eurasian aspen (Populus tremula)
Susanne von Bargen,Rim Al Kubrusli,Thomas Gaskin,Stephanie Fürl,Florian Hüttner,Dag-Ragnar Blystad,David Karlin,Risto Jalkanen,Carmen Büttner +8 more
TL;DR: This poster presents a probabilistic procedure to identify the phytomedicine-based determinants of infectious disease in animals and its applications in crop protection and animal welfare.
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