Author: Theo Sanders

Looking at Pollen

Harold, The two bigger pollen grains of your photo could be viable and perhaps unreduced or unreduced and doubled. The method of causing the pollen to sprout, and examining it under a microscope has been described by Lawrence Trevanion in “A Look at…

New viridiflorus hybrid

The first seedling of (( Pontresina x ( Edna Earl x Rashee )) x N. viridiflorus flowers in the greenhouse. I think in the next year it will have more than one flower per stem. The pollen is highly fertile,…

N. cantabricus from Spain x Emerald Sea

Here are the first three seedlings of this cross flowering in the greenhouse. It  is a great surprise that the first and the second seedling produce some sprouting unreduced pollen.      

New site

You will find some information about hybridizing on my new site http://www.theo-sanders-daffodils.de. The document ‘Pollen Volume and Chromosome Content of Daffodils; Possibilities for hybridizing’ you perhaps already know. The other two pdf-documents ‘Crosses of Standard Daffodils with Species’ are transformed from…

Damage of daffodils by frost

In an e-mail to Daffnet of April 9 I wrote that I lost many daffodils by frost. Now I have some further details, but the whole dimension of the damage is not yet to be seen, because I dig out…

Test of daffodils at different localities

  The first picture shows Symptom at January 13. We had very high temperatures in winter during December and January in Essen (Germany). The leafs of many daffodils were already very long when a period of two weeks of hard frost…