I have had H Vittatum twenty years. It makes many bublets. I have never known it to self pollenate. I have been unsuccessful in having its pollen fertilize a diploid of any species.
On Sunday, April 29, 2018, 11:38:15 AM EDT, Diana Chapman <rarebulbs@suddenlink.net> wrote:
I have about 50 species of Hippeastrum and, naturally, I want to
propagate them. The only one I have been successful with self
pollination is H. parodii, none of the others have ever produced viable
seed. Some look like they are producing a seed pod, but the seeds are
not viable. Crossing is a bit hit or miss, some will be successful,
others not. It is my understanding they have to have a compatible
number of chromosomes to be successful, and there is variability in
Hippeastrum in this respect, but most of my crosses do work out.
Diana
Telos Rare Bulbs
> Hi,
>
> Wikpedia says
>
> "Some species, such as the Uruguayan Hippeastrum petiolatum, are
> sterile and unable to produce seeds. H. petiolatum is a sterile
> triploid that reproduces asexually, producing many bulbils around the
> mother bulb. These are light, and easily carried on the surface of
> water ensuring distribution of the species during the rainy season.
> Other species such as Hippeastrum reticulatum are self-pollinating,
> reproducing by distributing seed. Although this does not guarantee
> genetic diversity in natural populations, it is widely used by
> colonising species. These two examples are not however typical of the
> genus, which commonly reproduces through allogamy. One mechanism that
> limits self-pollination is that of self-incompatibility by which seeds
> are only produced by pollination from other plants.[67][68]
> Furthermore, the plant generally releases its pollen about two days
> before its stigma is receptive, making cross-pollination more
> likely.[67] Pollinators include Humming birds in subtropical areas,
> and moths.[30]"
>
>
>
>
>
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