Science

This category is about the biology of daffodils and narcissus.

fertile tetraploid tazetta pollen

November 24, 2014
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If any breeders out there want to make some fertile tazetta hybrids with regular daffodils, these should be ideal. Right now I have collected an excess of pollen from several…

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New posts in Dafflibrary

November 3, 2014
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Those interested in hybridizing might be interested in Helen Link’s records which have recently been posted to www.dafflibrary.org.  It’s handwritten, water-stained, and sometimes hard to read, but she has included…

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Hybrids of different narcissus species can be fertile by generating unreduced pollen

October 9, 2014
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In this spring I found many plants of intersectional diploid narcissus hybrids in Spain which were fertile by generating unreduced pollen. This may be of great interest for daffodil hybridizers and…

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Sometimes daffodils have a mind of their own

Sometimes the behavior of daffodils defies traditional explanation. What do you think about these two questions: A long-time grower of daffodils in the landscape was telling me yesterday about the puzzling…

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Bud Count and Cold Weather

February 25, 2014
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Here’s a general question. I grow daffodils in west central Louisiana. I bought 18 Beryl bulbs in the fall of ’11. First year bulbs all flowered well, of course, and…

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Pollen Volume and Chromosome Content of Daffodils; Possibilities for hybridizing 2 and 3

January 12, 2014
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During  March 2013  I found some different yellow bulbocodiums in Potugal and Spain. From observing the pollen volume I think that four plants are diploid, two are tetraploid, and one…

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