Wednesday, February 12, 2014

Changsha


Changsha is one of the hardiest of the mandarins.  May have C. ichangensis in background.  Survives short freezes of  13°F, -11°C F with no loss of leaves, reports it survives 6°F, -14°C [4] p. 28 and also dying at that same temperature [5] .  Generally considered hardy to 10°F, -12°C [4] p. 14.  It is very seedy and the flavor is bland, low acid.  Honey Changsha is a selection with better flavor, at least some seedlings are zygotic. It has about 25 seeds per fruit.



Honey Changsha





Seedless Changsha News 

In 2003 Dr. Wayne Hanna at the University of Georgia Tifton Campus started working on a seedless Changsha.[1]  He exposed seed to gamma radiation to induce sterility.  Dr. Hanna[2] and his fruit[3].  Dr. Hanna at the 2013 Citrus Expo in Alabama said it was still a couple of years away from introduction.

A seedless Changsha, cold hardy seedless lemon and seedless grapefruit is now available  
but only for sale in Georgia.

  • ‘Sweet Frost’ is an irradiated Changsha mandarin with two to three seeds per fruit. It has a Brix range of 11-12, it is very easy peel, well-colored, and matures (in GA) in November or December.
  • ‘Grand Frost’ is an irradiated Ichang lemon. This is a large lemon (25 centimeters to 28 cm in circumference) with about 8 Brix and high juice content. It has nice, bright-yellow color and a maturity range of November through January.
  • ‘Pink Frost’ is a red grapefruit, with characteristics not dissimilar to ‘Ruby Red,’ but with somewhat deeper color. It averages 30 cm to 35 cm in circumference, has Brix 8-11, and matures (in GA) November through March. It averages three seeds per fruit. This variety was identified in Georgia. It was a high seed fruit, with approximately 60 seeds before being irradiated.[4]

11 comments:

  1. I plant changsha mandarin at 6a zone in Poland. The citrus is nice cold hardy but doesn't survive Polish winter so I take it in the house. Anyway, I recomend this plant for all living in colder area. In fact it's citrus with very seedy fruits, but edible, sweet and tasty.

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    1. Apparently you have a better tasting selection. I have tasted fruit from two trees, one was bland, the other better tasting. Would like to learn more about your tree. Thanks

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  2. What's about the new seedless Changsha cultivars? They could be very interesting :) !!! Do you know someone that has them? How do they grow?

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  3. http://nespal.cpes.peachnet.edu/seedless%20citrus.html

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  4. Where can i buy above changsha seeds?

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  5. You have not said where you are. http://tropicalfruitforum.com/index.php?board=13.0

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    1. I'm a korean and already a member on it. I want buy changsha seeds on online shop.
      I've been purchased them on amazon. The seller has been sent seeds. But the seeds postage was not arrived. So i want to buy changsha seeds from other shop, not amazon sellers.

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  6. Anyone growing it in a USDA zone 7b, lowest 5F (-15C)???

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    Replies
    1. A seedling of Changsha survived 5F but most Changsha would die at that temperature.

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  7. In my opinion these almost hardy, low acid types of Citrus like 'Changsha' should be ideal for crossing with trifoliates because they might actually stand a chance of producing offspring with an almost balanced acidity for fresh eating.

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    Replies
    1. That could work. But the problem with trifoliate hybrids is the Poncirus taste. So more than one generation would be required.

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