Science

This category is about the biology of daffodils and narcissus.

Winter bulbocodiums

It has been a cold frosty winter here and many flowers are later than usual. The tazettas in the field are miserable. The paperwhites are miserable too but they seem…

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The generation of fertile allotetraploid hybrids of narcissus species by chromosome doubling

June 21, 2015
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This spring I found many diploid pollen grains on one plant of Hawera and three plants of Fairy Chimes. These species hybrids were transformed with Oryzalin from diploids to tetraploids or…

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Chinese Sacred Lily (N. tazetta var chinensis) seeds…

March 12, 2015
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Yes, you can look at all the articles coming out of China and elsewhere, on how hopelessly sterile this variety is. But, thanks to the wonders of significantly warmer temperatures…

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Bellingham Daffodil Research

January 10, 2015
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Does anyone have information on Bellingham WA daffodil research?  I work in Bellingham and I’ve heard WSU used to have a tree and daffodil research station where they built the mall.  …

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Narcissus x xanthochlorus or Narcissus x perezlarae

December 20, 2014
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   At November 7, 2014 I published a picture in Daffnet which I thought to be N. x xanthochlorus. Gerd Knoche told me that it may be N. x perezlarae…

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Seventh Supplement (2013-2014) to the 2008 Daffodil Register

December 9, 2014
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Dear All I just wanted to let you know that the Seventh Supplement is now available in printed format (£5) and also as an online PDF at: https://www.rhs.org.uk/plants/plantsmanship/plant-registration/daffodil-cultivar-registration/daffodils I hope…

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