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Messages - mikkel

Pages: [1] 2 3 ... 13
1
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: September 24, 2020, 04:18:01 PM »
What is the supposed hardiness of US1279, US 1281 and US 1282?

2
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: September 24, 2020, 04:12:18 PM »
That sounds good!
Do you know US145  a descendant of Thong Dee?It is reported by the UCR that it produces hybrids without off-flavours.  Could be useful in some way.

As for precociousness, it seems that precocious flowering is somehow related to inbreeding, probably because of the recessive alleles (my amateurish interpretation). If this is the case, then F1 hybrids would never develop this trait (even if it were still genetically present).
The only way to force precocious F1 hybrids would be to use a precocious edible variety as crossing partner. ( Which would only work if the precocious trait has the same genetic base as in prec. Poncirus).
A citrus with recessive precocious traits could already work. With a correspondingly high number of seedlings something could be found.
The only problem will be to know which citrus carries these recessive alleles.
A hybrid of several semi-edible citrus could work more reliably as a crossing partner. But this will cost time.


I have learned from Malcolm Smith that hybrids from breeding trials with early flowering Wintersii and Wakonai have lost early flowering after a few generations.


3
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: September 24, 2020, 01:40:18 PM »
It is really impressive how fast they grow. Have you ever thought of using paclobutrazol to trigger flowering?
Ilya has done some research on this.

4
Cold Hardy Citrus / Re: Pomelo in the snow
« on: September 13, 2020, 01:36:22 PM »
but for me the video looks very "produced". It does not seem to be a documentation.

5
Cold Hardy Citrus / Re: N1triVoss
« on: September 07, 2020, 03:39:44 PM »
The flowers on my N1tri seedlings were at the tips of the shoots and were normally formed. But I never had a second flower on such a plant.

6
He is living in the eastern US

7
Found this one on another forum:
https://citrusgrowersv2.proboards.com/thread/126/christmas-loquat?page=1&scrollTo=952

it is Loquat "Christmas"

the owner says it flowers in spring


8
Cold Hardy Citrus / Re: N1triVoss
« on: July 21, 2020, 04:23:11 AM »
Just above the first pair of true leaves.

I`ll try that too. I have some precocious ichangensis seedlings too. Might be also worth a try.

9
Temperate Fruit Discussion / Re: Maypops (in zone 6a/5)?
« on: July 20, 2020, 03:35:00 PM »
It might not only depend on your climate zone. I know that in some places near me, incarnata is able to survive our winter.  But for me, they are too delicate. I live in zone 7. They usually die after a season in my garden, even in my greenhouse. There must be other reasons than our climate.
I will try again this winter....

10
Cold Hardy Citrus / Re: N1triVoss
« on: July 20, 2020, 05:44:57 AM »
I found at least 3 very early flowering seedlings of N1tri from open pollination. None of them have ever bloomed again.

11
Cold Hardy Citrus / Re: Hardy citrus growing in Switzerland
« on: June 17, 2020, 07:06:48 AM »
@usirius

here you can find Bernhards original description of the different types.

https://web.archive.org/web/20130106094639fw_/http://www.agrumi-voss.de/hrs.htm

I think we posted about it on another forum.... :)


12
Cold Hardy Citrus / Re: Ichangensis froze to death, then bloomed.
« on: June 16, 2020, 11:18:44 AM »
a flowering Ichang Papeda seedling in my backyard. A very tiny plant. Probably not a pure one.


13
Cold Hardy Citrus / Re: Ichangensis froze to death, then bloomed.
« on: June 16, 2020, 02:16:31 AM »
I also found this "flower at the top" in some Ichangensis seedlings. Only a very few of hundreds. Some N1tri seedlings (an Ichangensis hybrid) have also flowered in the first year. All of them did not flower the next year. Only 1 Ichang Papeda seedling started to flower regularly again at the age of 4 years.
Your seedling does not look like a pure Ichang Papeda. But even pure Ichang Papeda are not as hardy to me as Poncirus.


14
Is there a nursery in Spain which is offering Piera?

15
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: May 26, 2020, 02:41:19 PM »
beautiful! I like the narrow leaved types the most. Interesting to see that you have exactly the same herbs around like I have in my garden half way round the world :)

16
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: May 17, 2020, 02:37:51 PM »
I like your work!
+10F was the average low for my area some years ago. In the last winters it is around +21F (-6C).
These second survivors might be already hard enough for my climate.
How many survivors are there now in total?

17
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: May 03, 2020, 05:52:56 PM »
To have a monofoliate cold hardy hybrid is an interesting progress

18
Cold Hardy Citrus / Re: Khasi Papeda
« on: April 25, 2020, 04:27:29 PM »
Today I found a living rootstock of the Khasi Papeda outside in the ground. Time will tell if it will resprout again...

19
Cold Hardy Citrus / Re: Khasi Papeda
« on: April 22, 2020, 03:48:40 PM »
I am in zone 7 but not in the last years . This winter there were nearly no frost. Khasi Papeda died back anyway.

20
Cold Hardy Citrus / Re: Khasi Papeda
« on: April 22, 2020, 01:43:23 PM »
Some years ago I got seeds from INRA Corse. Out of hundred seedlings non survived outside in opposite to Ichang Papeda seedlings.
There might be still some coming back from the roots this season but they are too cold sensitive for my climate.
I have a single plant in pot but it didn`t flower so far.


21
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: March 30, 2020, 10:41:50 AM »
those plants might be already hardy enough in zone 7.
probably yes but do you think they are zygotic seedlings?

22
Anything new?

23
Cold Hardy Citrus / Re: Poncirus fruit comparison
« on: February 18, 2020, 01:12:51 PM »
Your Poncirus sounds very interesting Jim. Please post about it when you have fruits.
Thanks!

24
Cold Hardy Citrus / Re: Poncirus fruit comparison
« on: February 18, 2020, 11:01:38 AM »


I also believe that high summer heat and harvest of fully ripened fruits greatly influence poncirus taste.

My feeling is that the taste is also less bitter when the fruit is older. The fruits I tested, which were on the verge of edibility, were often less bitter.
I think that's why Ellerhoop was better when I found the first fruit. Fresh fruits from Ellerhoop turned out to be bitter, at least for my family and Till :)
The resin content of poncirus might be another story though.

25
Cold Hardy Citrus / Re: Poncirus fruit comparison
« on: February 18, 2020, 04:44:32 AM »
No poncirus off flavors.
.... It had a sort of pine-like flavor.

For sure it is a matter of personal preferences but to me the pine-like flavour is also an off flavour.
To my impression this pine-like flavour is even more present in many F1 hybrids. At least the ones I tested.

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