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Messages - Zaubergau

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Cold Hardy Citrus / Re: Citrus pollen preservation
« on: January 06, 2019, 08:18:38 PM »
Thanks llya!  That's just the info I hoped for, short of making friends with someone with a liquid nitrogen tank :).  I tried crossing Morton citrange and NC grapefruit (citrumelo) with various kumquat hybrids, but the fruits abort with new bloom flushes.  Hopefully this will extend my envelope.

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I wonder if there would be any dormancy inducing benefits of a citrangequat interstem on FD?  Trifoliate is reputed to be daylight dependent and kumquat temperature dependent,
 to break dormacy.  The traits may stack up to marginally increase cold tolerance.
  Thomasville is the only citrus hybrid that has survived outdoors here for me ( old zone 7 , now 8a). It volunteers here when I discard seed in a north facing raised flower bed.

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Cold Hardy Citrus / Citrus pollen preservation
« on: January 06, 2019, 04:08:42 PM »
Does anyone have any suggestions for an inexpensive method for short term citrus pollen preservation for a couple of months?  I would like to preserve some of the earlier cold hardier pollen types to cross with later blooming varieties.  Thanks in advance.

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