Blog Archives

Crosses of tetraploid species with each other or with tetraploid standard daffodils

February 7, 2017
By

Most crosses of standard daffodils with diploid species and crosses between diploid species are infertile. If tetraploid species are used the descendants are fertile. Some more information you find within…

Click to read more »

Narcissus cantabricus crosses

February 2, 2017
By

   These two miniature daffodils are flowering in the greenhouse. The seedlings of both crosses often generate unreduced pollen. I shall try the first one out of doors this year…

Click to read more »

Fertile triandrus hybrids

January 13, 2017
By

In Daffnet (November 7, 2016) Graham Fleming wrote that he got seeds from combining several of his triandrus hybrids with a special triandrus variety (NTT) with one chromosome set of…

Click to read more »

Different seedlings of N. x xanthochlorus (N. cavanillesii x N. viridiflorus) are flowering

December 2, 2016
By

The seedlings of N. x xanthochlorus should be fertile because they are allotetraploid. But some generate no viable pollen. Successful crosses with Maria Pia as the pollen parent were made.…

Click to read more »

N. cavanillesii crosses

November 24, 2016
By

N. cavanillesii flowered three days after a heavy rain in southern Spain. Today, one month later I earned the seeds in the picture. The different pollen parents influence the size of…

Click to read more »

Unreduced ABC – Pollen from ABC – Narcissus Crosses

July 17, 2016
By

The capital letters indicate different chromosome sets. One example for such a cross is N. cantabricus x Emerald Sea. The seedlings are composed of one chromosome set of Sea Dream…

Click to read more »