Re: Variability of Cypripedium Ulla Silkens


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Abgeschickt von Michael Weinert am 19 Mai, 2009 um 12:18:44

Antwort auf: Variability of Cypripedium Ulla Silkens von Rudolf Peter am 19 Mai, 2009 um 11:24:32:

Dear Peter,

The variability within the same plant is a heritage of the parent species Cyp. reginae. The decisive factor is the temperature during the last days of the flower bud development. Low temperatures create intense colouration, high temperatures lead to pale colours. This is true for all Cyps, but the reaction of Cyp. reginae and its hybrid 'Ulla Silkens' is especially obvious.


Good growing!

Michael



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