Pollination

This is about the relationship between flower structure and pollination efficiency. It also includes reproductive costs and success.

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…

Click to read more »

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

June 21, 2015
By

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…

Click to read more »

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

March 12, 2015
By

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…

Click to read more »

fertile tetraploid tazetta pollen

November 24, 2014
By

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…

Click to read more »

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

October 9, 2014
By

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…

Click to read more »

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

January 12, 2014
By

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…

Click to read more »