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Topics - lebmung

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1
Citrus General Discussion / Genomics of the origin and evolution of Citrus
« on: November 16, 2019, 08:05:56 PM »
A good article for those interested on "Genomics of the origin and evolution of Citrus":

https://www.nature.com/articles/nature25447

2
Citrus General Discussion / Rootrot cure
« on: November 01, 2019, 06:49:02 PM »
After searching for years for a cure for root rot in papaya, I found a plant based mixture that kills the fungi and to some extend some nematodes. I guess this will work for citrus as well. It's not commercial, I grew the medicinal plants and mix it. I target mostly phytophthora and fusarium. Sure there are chemicals which work, but they remain in plants. SO i prefer something organic.
So this winter I will test on citrus.
Which citrus in your experience has the most root rot problems?

3
Citrus Buy, Sell, & Trade / Key lime seeds
« on: October 30, 2019, 06:52:56 AM »
I have key limes ( a big Thai variety, thornless ) which are almost done in my greenhouse ready to harvest.
Seeds are very fresh with 100% germination rate as I get them form fruit and ship them out right away.
They are true to type and start to fruit in 3 years. Continuous flowering including during the winter.

10 seeds - 4€, shipping 2€, 3-4 business days in Europe.

4
Tropical Fruit Buy, Sell & Trade / Hardy Mango Gomera seeds for rootstock
« on: September 30, 2019, 08:10:37 AM »
SOLD OUT


I will have some fruits shipped from Canary Is this week. Due to the expensive shipping I will sell some of them.

There will be Gomera-1 and Gomera-3, these mango are used as a rootstock.
This is a hardy mango which can take temporary freezes and drought.


5
Citrus General Discussion / Fingerlimes harvest
« on: August 27, 2019, 06:14:58 AM »
This year a small tree in a 2 gallon plastic bag made me a lot of finger limes, it looks like climate here is good for this lime, without the winter of course. I have about 25 fingerlimes at about 25-30g each. It seems like they love the hot weather but not the strong sun, so this year I shielded from UV rays and fruits didn't drop anymore.
I know some guy in southern France has a small orchard and sell these. Anyone knows about him?

6
Citrus Buy, Sell, & Trade / Pink or red finger lime wanted
« on: July 23, 2019, 06:12:17 AM »
I am looking to buy or exchange some scion or finger limes.
I already have a green finger lime that fruits profoundly. Rainforest pearl or other varieties, preferably in Europe.

7
Tropical Fruit Buy, Sell & Trade / Ultra dwarf papaya seeds
« on: July 21, 2019, 08:06:03 AM »
Aprox. 10 seeds 7€uro, plus shipping 2€uro + 0.8€ Paypal fee worldwide or registered 5€uro.
 
Pay by PayPal or bank transfer (no fee). Please be advised of import permits in your country if any. Guaranteed to EU delivery.
Delivery time to US: 14 to 20 days by airmail
                        EU: 5 to 10 days
Germination accelerator if needed KNO3 1500mg (only European Union buyers)

Limited quantity.

Carica papaya var. dwarf ‘Pusa Nahna’ is a ultra dwarf variety and suitable for cultivation in kitchen garden, pot or even on the roof of the house. It can produce fruit up to 3 years.
Dwarf plant of 106.54 cm height. Precocious dioecious (female and male plants generally in ratio 1:1) and bears fruit at a height of 30 cm above the ground and tolerant to water logging. Fruits are medium sized (963.33 g), pulp is thin (2.10cm) and yellow in colour, TSS is about 8.13-9.4 Brix and cavity is low (26.53 %).

Seeds are from a reliable breeder. Germination was personally tested at 60-70% within 6 weeks without accelerator.
Fresh seeds from April 2019. Instructions will be provided.

Technical data:
Days for 1st flowering: 73.7 days after sown
Fruit bearing height:  53.3 cm
No. of fruits/plant: 29.4 after 10 months
Yield/Plant:  34.9 kg
Fruit characteristics:
Av. Fruit wt. : 1.19 kg
Av. Fruit length : 14.9 cm
Av. Fruit breadth :  12.9 cm







8
Cold Hardy Citrus / Rootstock id
« on: July 03, 2019, 06:26:21 PM »
I have this rootstock on one yuzu, it was supposed to be pt.
I wonder what it is. Suspect Citrus macrophylla.
Any help you would be appreciated.


9
Tropical Fruit Discussion / Mango Falan or Mango Thunder
« on: July 02, 2019, 08:20:00 AM »
Anyone growing Mango Falan or Mango Thunder?
This is a green mango. I have two small grafted trees with fruits. This mango cracks after too much water.
Seedlings start to bear fruits after 2 years and they are dwarf in nature. I will look into using them as a rootstock for pots.

10
Tropical Fruit Discussion / Dragon fruit cuttings
« on: June 18, 2019, 10:45:16 AM »
I got some dragon fruit cuttings for 2 weeks in potting soil but they didn't show any roots so far.
At the top of the cutting aerial roots came thru. Should I cut them?




11
Citrus Buy, Sell, & Trade / Ichang papeda (EU only)
« on: June 18, 2019, 07:58:57 AM »
I have 2 rooted Ichang papeda for sale only to EU.
10 € each + shipping.
The origin of the plant is northern Thailand/Laos. Very hardy,  but I didn't test it to sub zero C temperatures.

12
Citrus General Discussion / PT seedlings growth rate
« on: May 30, 2019, 06:03:44 AM »
Anyone with comparative experience of PT seedlings growing in pots in a greenhouse or outside in soil.
Which way would they grow faster?  Limited soil in pots but a warmer and more humid climate or outside deep root, direct sun. Water and fertiliser the same for both.

13
I am looking for fresh seeds of Passiflora incarnata, I know they are not done yet.

14
Citrus General Discussion / Micropropagation
« on: May 20, 2019, 01:05:17 PM »
Anyone with experience micropropagating citrus?
I am thinking to start some tests soon. My question is a cloned plant, does it have a juvenile stage?

15
Citrus General Discussion / Mango dwarfing to citrus
« on: May 08, 2019, 10:17:35 AM »
As some of you are familiar with the Japanese dwarfing methods for mango, where they grow horizontally less then 1.5m, could this be applied to citrus, forcing a high productivity in a small place in a greenhouse?

16
Tropical Fruit Buy, Sell & Trade / Mango scions exchange Europe.
« on: May 04, 2019, 08:18:34 AM »
Any growers from Europe who want to exchange mango scions?
I have rare mango trees from Thailand : Nam Doc Mai, Choc-anoc (miracle mango, flowers 3 times per year) and green mangoes which are also dwarf Falan and Kieow Savoy, those two are disease resistant and more cold tolerant. I also have Osteen.

17
Cold Hardy Citrus / Citrus tachibana
« on: March 16, 2019, 06:08:26 PM »
Anyone growing Citrus tachibana?
According to Swingle it is strongly resistant to frost and snow.
Unfit for eating?

18
Citrus General Discussion / Best roostock for potted citrus
« on: March 14, 2019, 05:32:06 AM »
What is the best rootstock for potted citrus.
The soil would be peat/coconut fiber/clay rock/perlite 6-6.5 pH.
Tap water with chlorine 20ppm, medium hard 6.9°dH  'German degrees'
Summer temperature 25-35°C (77-95), winter 5-10°C (41-50 F)
Final pot 50L (13gallon)

Poncirus trifoliate would be the first candidate. What I don't like about it, it's a slow grower and makes little fruits.

19
Citrus General Discussion / Grafting with micropore
« on: March 10, 2019, 08:30:23 AM »
Has anyone tried to graft citrus with micropore tape?
Not to warp the union, but the upper part.
Most of my scions tend to get mold inside in the upper part, so I am looking for a material that breaths. Parafilm would be okay I guess.
3m micropore is a breathable material, bacteria can't go inside, and the glue is not so sticky. It's been succeful in tissue culture.

20
Tropical Fruit Buy, Sell & Trade / Mango scion exchange ( only Europe)
« on: February 04, 2019, 05:57:52 PM »
I want to add more Mango varieties to my collection, so if someone is interested in exchanging scions in Europe only.
I have the following Thai mangoes:
*Chok-anoc - produces two times a year
*Nam Doc Mai - good taste
*Kieow savoy- very resistant, used as a rootstock in Thailand
*Falan - used as green vegetable

Also had a large Osteen who recently died back. Now I have only a small grafted saved.

21
Tropical Fruit Discussion / Mango dieback indoors
« on: February 04, 2019, 02:17:15 PM »
I have a problem with some mango varieties that they die back during the winter. I wonder what is the cause.
Watering is some when soil gets dry and the soil mix is optimal for drainage and aeration.
Plants flowered then died. Only the grafted top dies.
They were sprayed with fungicide in autumn.
Also made a drench with phosphonate.

I wonder what triggers the sudden death. Plants get dry fast and die in a couple of days.

22
Citrus General Discussion / Seedless lime deficiency
« on: November 07, 2018, 06:05:28 AM »
I have this seedless lime (a type of Tahiti lime, even though the fruit and taste is a little bit different, more aromatic), variety unknown of Thai origin. It has been airlayered, so no rootstock.
It shows a deficiency, even though I spray with micronutrients on the older leaves still persists.
Any thoughts?
https://i.postimg.cc/vHBcwbpr/DSC1-0.jpg

23
Citrus General Discussion / Fast flowering in citrus seedlings
« on: October 31, 2018, 07:18:42 PM »
Does anyone use a Japanese method to promote flowering from seedlings in less than two years?
There are techniques used also in Israel borrowed from Japan, but they seem to be secret somehow.




24
Citrus General Discussion / Oroblanco
« on: October 31, 2018, 04:46:36 PM »
I bought an Oroblanco (Sweetie) fruit from store (origin Israel) and to my surprise I found a seed. Now it's supposed to be seedless, maybe some bee pollinated with another citrus.
Anyway I planted in the incubator and after a week a seedling came out.
I know grapefruit and pomelo, the parents, take 8-15 years, or never if the seed was sterile.
Did anyone try it before?

25
Citrus General Discussion / Citrus tristeza virus test
« on: October 16, 2018, 12:03:22 PM »
Has anyone used these Citrus tristeza virus on site tests? It's handy when you get a new citrus tree.

https://orders.agdia.com/agdia-immunostrip-for-ctv-isk-78900

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