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Topics - lavender87

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  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5130066/

  According to the article, some adjustments might occur during early stages of growth, either reversible or irreversible. I believe it applied to all or most types of trees.

 Trees respond to climate changes in 3 ways, evolutionary adaptation (through seeds), modification (during development), acclimation (internal chemical changes).

1)  At least some of the off-springs of a certain hybrid citrus variety might adapt better to the cold climate than their hybrid parents. I did not mean the original ancestor like pure poncrius, but the immediate hybrid parents like citrange. For example, some of the citrange off-spring might adapt better than their parents in cold climate. Even Thomasville citangequat which mostly come true from seed might have experienced some adjustment to adapt better to colder climate than the original Thomasville citrangequat 100 years ago.

2) Some the adjustments were not reversible in its lifespan. Those adjustment we have been arguing about previously was the reversible adjustments which also calls acclimation (internal changes of chemicals to respond to climate change). I personally thought of leaving hybrid citrus seedlings in my plastic covered patio with no heat equipped to force those survivals to adjust themselves in their structure to respond to colder climate. Previously, most of us tried to over protected our seedlings in greenhouses with heaters which I believe might limit the seedling modification to adapt better to colder climate in its early growth stages.


  It sounds pretty much similar to living beings. If someone grew up in a tropical climate region like the southern part of Florida, they might not tolerate to freezing weather as good as someone grew up in the north like Russia or Alaska. As the result, over many centuries, off-springs of the northern people inheriting the "evolutionary adaptation" from their ancestors and therefore tend to tolerate to freezing much better than someone from the south.

2
Temperate Fruit Buy, Sell, & Trade / karp sweet quince fruits in-need
« on: September 28, 2019, 01:08:12 PM »
  Does any one have fruit from "karp sweet quince" fruits? I would love to taste this type of fruit.


3
Cold Hardy Citrus / Tiwanica “Nansho Daidai” Lemon Tree (10F)
« on: September 27, 2019, 10:19:40 PM »
  Any one has any reliable info about this cultivar? JustFruits&Exotics listed this vaierty as zone 8a hardy, down to 10F.

  Any info would be greatly appreciated.

4
Temperate Fruit Buy, Sell, & Trade / Camellia sinensis (tea plant wanted)
« on: September 26, 2019, 05:42:59 PM »

   Does any one have this tea plant? I checked and found that many sources claimed this Chinese tea plant can be grown in zone 5-9. Either seeds or plants.
  I bought a bag of tea plant seeds on Ebay from a seller in China, but they sold all floaters. It's been 3 months and nothing germinated yet.

 Thanks.

5
Cold Hardy Citrus / Does rootstock hasten fruit ripening in citrus?
« on: September 22, 2019, 02:25:27 PM »

  I read some info online about grape rootstock affecting rate of ripening. I hope it also occurs in citrus.

6
Cold Hardy Citrus / Yuzu Ichang Papeda cross
« on: September 21, 2019, 12:53:03 PM »
  Was there such a tree exited? Will this hybrid significantly decry the quality?

  I know the Ichang Papeda fruit is itself a low quality citrus fruit, but yuzu has many uses in culinary field.

7
   The leaves of karffir lime has the petiole wing that is almost the size of its blade. I noticed that all of Ichang papeda hybrid has much smaller ratio between leaf petiole wing and leaf blade. Moreover, assuming that kaffir lime was a hybrid between Ichang Papeda and Citron, then it would be as cold hardy as Ichang Lemon or yuzu; however, the fact is kaffir lime is very sensitive to frost, and its cold hardiness could not even compare to Meyer Lemon.


 Kaffir lime (Mauritius papeda):



 Ichang papeda:



 Melanesian Papeda:



 
Citrus hystrix var. micrantha - small papeda (Locally known as the biasong and samuyao)
Citrus hystrix var. celebica - Celebes papeda
Citrus hystrix var. macroptera - Melanesian papeda
Citrus cavaleriei - Ichang papeda
Citrus latipes - khasi papeda
Citrus hystrix - The kaffir lime or Mauritius papeda


8
Cold Hardy Citrus / Ichang papeda and harvey lemon are not compatible
« on: August 25, 2019, 03:21:31 PM »

 I have tried to graft 4 ichang papeda scionwoods on a harvey lemon tree. All 4 failed.

 Harvey lemon grafted on Poncirus has pretty high rate of success. Growth of harvey lemon scionwood on poncirus was very vigorous at first, but then after 1 month it slowed down probably due to the slow growth of the poncirus rootstock.

 Ichang papeda grafted on Poncirus has pretty high rate of success.

9

 We might have some success grafting a curry scionwood on citrus or vice versa.

10
Cold Hardy Citrus / Will nurseries use rooted cuttings as rootstocks?
« on: August 09, 2019, 09:13:18 AM »
 I bought my Harvey lemon from Haris Nuersery and just found out that the sour orange rootstock was a rooted cutting or an air laying when I tranfered the tree to a bigger pot.

  Harvey lemon grown from seeds on its own rootsystem was  already hard to survive over the winter in zone 8a. I was very disappointed when the sour orange rootstock is a rooted cutting. I then grafted a few branches of harvey lemon on my trifoliate seedlings to retain the gene just incase. The success rate was 100%, but I douted that the future scionwood overgrown issue might somehow occurs at the later years.

  The winter season in Atlanta was not so bad in the last 30 years, so I hope that Harvey lemon on trifoliate rootstocks will make it through. I am on my own experiment on multiple grafts on a single rootstock and multiple rootstocks on a single scionwood just to see whether or not it'll boosts growth rate as well as mature rate and if success, it'll definitely help to speed up the hybridizing program. I will publicate the method when success.


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11
Cold Hardy Citrus / Cold hardiness of yuzu
« on: August 08, 2019, 02:36:36 PM »
  I have seen many different information about cold hardiness of yuzu from different nurseries. Some claimed that yuzu is hardy down to 0F while other said 12F. What is the truth about yuzu hardiness?

12
Hi,

Does anyone have Camellia Sinensis (tea plant). I can trade my jujube scionwood or persimmon scionwood. I have 5 different types of jujube and 5 different type of persimmon.

 Thank you for reading my post.

 Lav

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Temperate Fruit Buy, Sell, & Trade / deleted
« on: August 05, 2019, 05:50:58 PM »
I already got it

14
Cold Hardy Citrus / deleted
« on: July 17, 2019, 09:20:12 AM »
deleted

15
Cold Hardy Citrus / single scionwood on multiple rootstocks
« on: July 17, 2019, 08:42:41 AM »

  Have anyone tried multiple rootstocks for single scionwood? I have the harvey lemon about 2 years old on sour orange rootstock, and I am thinking of grafting (adding) several smaller trifoliate rootstocks to the same tree.

  What will happen? Will it increase growing speed, increase cold tolerance or become more susceptible to diseases?

16
Poncirus Trifoliata fruits have been known to ripen from September to October. My question would be on how it affect the flowering, fruiting, and ripening season of the scionwood.

17
  I just came across several webpages about thomasville citrangequat and some claimed that citrangequat always produce nucellar seeds, so it is guaranteed to always come true to seed while others denied that opinion.
 
  My personal experience about thomasville citrangequat would tend to support that citrangequat does not always come true to seed. The 2 thomasville citrangequat trees were bought from Stan Mckenzie farm. One was grafted has monofoliate leaves and was thornless while the other one came from seed which has mixed foliate of mono, di, trifoliate leaves with some thorns. The flavor of fruits from both trees were almost the same. The amazing fact about citrangequat trees from Stan was the seedlessness which was contradicted to the original description of thomasville citrangequat about seediness.

  So I guess Thomasville citrangequat might not come true to seed. It was hard to get an exaxt same tree as the original one if grow from seed. Probably some silent genes will show up somehow on off-springs.

18
Cold Hardy Citrus / NANSHO DIADIA info
« on: June 04, 2019, 07:25:22 PM »
  Has anyone had experiences with Nansho Diadia? Some source claimed it is hardy to 10F, isn't it true?

  Any verification would be appreciated.

19
Cold Hardy Citrus / Sudachi flavor and cold hardiness?
« on: June 03, 2019, 09:22:35 AM »
  Sudachi was reported to be yuzu hybrid, yuzu x mandarine-orange. Some one reported that it could withstand 10F, is it true?

  I have read the comment about sudachi flavor, and it was described as amazing as a lemon or lime substitute? Someone who currently have sudachi please help me describing the taste of sudachi leaves. Will sudachi leaves taste and smell any closer to lemon?

 Best regard,

20
   I just wonder how a lemon tree survived a low temperature of 16 F without any damage? I don't see any trait of trifoliate orange or Ichangensis papeda characteristics in it. People claimed that it was the only survival after a disastrous winter in 1960-1970 in FL.

   Anyone confirm this for me please, is this a myth?

   Especially, the winter temperature of FL is usually very mild, so it means that a sudden sharp change in temperature would easily kill citrus trees there.

   

21
Citrus Buy, Sell, & Trade / looking to buy Ichangensis IVIA
« on: June 02, 2019, 09:08:43 AM »
I am looking to buy Ichangensis IVIA, either seeds or seedlings. I will appreciate so much.

22
Does anyone have seedless Ichangensis citrus seedling?

23
I am looking to buy a seedless yuzu seedling or seeds.

Thanks,

24
Cold Hardy Citrus / yuzu hybrid
« on: May 30, 2019, 07:42:02 PM »

 I have a little idiot question about yuzu. I knew that yuzu was actually a hybrid citrus; however, it is very seedy and less juicy. I just wonder whether or not there exists a yuzu hybrid which offer a better quality than yuzu lemon.

25
  I just wonder are there reasons for those thorns on citrus tree? And it seems like the citrus type with more thorns often have sour or bitter taste than others. So is there a relation between tastes and thorns, or just a coincidence?

  I used to think of a relation of thorns and cold hardiness, but that thought went away quicky because lemon has a lot of thorns but the least cold tolerant while poncirus trifoliata has even more thorns but the most hary.

  Oh, and what about leaves size, is it proportional to fruit size?

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