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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.