Citrus Growers Forum

MeyerLemon · Posted: Mon 26 Nov, 2007 3:02 pm

Hi,

Are US-852 and US-812 are patented rootstocks? If not, do you know any nursery selling seeds? I read very good comments on these new rootstocks.

Thanks,

JoeReal · Posted: Mon 26 Nov, 2007 3:36 pm

AFAIK, most USDA developed cultivars are non-patent. Only the University-developed cultivars can be patented by the universities that developed them.

MeyerLemon · Posted: Wed 28 Nov, 2007 6:05 am

Thanks JoeReal, I am searching for the seeds on web.

JoeReal · Posted: Wed 28 Nov, 2007 7:04 pm

I'll keep an eye out for them. These are not publicly available as rootstock budwoods in the CCPP.

Laaz · Posted: Wed 28 Nov, 2007 8:52 pm

I believe mostly used in FL.

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JoeReal · Posted: Wed 28 Nov, 2007 9:45 pm

Do you know of anyone willing to spare a few seeds? Tracing the USDA website to get a lead on possible sources of seeds becomes convoluted and circular.

Laaz · Posted: Wed 28 Nov, 2007 10:08 pm

I will check around. Right now no one wants to touch anything from FL.

_________________
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JoeReal · Posted: Thu 29 Nov, 2007 1:28 pm

MeyerLemon,

There is a patent applied for US-852. See this link:

http://www.ars-grin.gov/ars/SoAtlantic/fp/hb/bowman/852release.html

morphinelover · Posted: Wed 25 Feb, 2009 9:39 pm

US-897 Cleopatra mandarin x flying dragon poncirus.
US-852: Changsha mandarin x english large flowered poncirus
US-812: Sunki mandarin x Benecke poncirus

Others tested
US-942, US-802, US-801, US-809, US-827, US-896, US-952. Most are sunki mandarin, changsha mandarin, or cleopatra mandarin crosses with Poncirus trifoliata but US-827 is a Citrus Limonia x Poncirus and US-802 is a Siamese Pummelo x Poncirus Trifoliata

Anyone have any personal input on how they perform?