Theo Sanders, Germany

New tetraploid Narcissus jonquilla henriquesii

July 6, 2016

Categories: Breeding, Daffodil Types, Fertility, Hybridizing, Species

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N. jonquilla henriquesii has been transformed from diploid to tetraploid. The pollen volume of the tetraploid plant is about two times bigger than that of the diploid plant and the pollen tubes have a much larger diameter.

Sprouting pollen of n. jonquilla henriquesii (diploid) Sprouting pollen of n. jonquilla henriquesii (tetraploid)

The tetraploid N. jonquilla henriquesii may be of interest for crosses with tetraploid standard daffodils, N. viridiflorus, and tetraploid bulbocodiums to get fertile seedlings. To breed fertile jonquilla hybrids with red or pink crowns should be possible.


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2 Responses to New tetraploid Narcissus jonquilla henriquesii

  1. Fermi de Sousa, Victoria Australia
    July 7, 2016 at 9:03 pm

    Good news for jonquil breeders! Will seed become available somehow?



  2. Theo Sanders, Germany
    Theo Sanders, Germany
    July 8, 2016 at 11:52 pm

    Ask me please in some years for seeds, Fermi. In a first step I shall pollinate the tetraploid plant with her own pollen in the next spring. When I get seeds the grown up seedlings can look and grow better than the diploid jonquilla. But this is not really sure. In addition I shall make different crosses with the pollen of  the tetraploid jonquilla. If they are not successful, I shall try the same crosses with the jonquilla as seed parent. For this purpose I need some more bulbs. All these actions require much time.