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Messages - hardyvermont

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Cold Hardy Citrus / Re: Poncirus Seedlings
« on: July 18, 2022, 09:52:46 AM »
Mikkel, Do you still have these plants?  Are they still different looking?

Cold Hardy Citrus / Re: My citrus collection [EU - Antwerp]
« on: July 13, 2022, 07:30:46 PM »
It may be a phosphorus deficiency.  Tomatoes look like that when there is insufficient phosphorus.  In any case use a water soluble fertilizer and spray with trace minerals for citrus.

FFP seem to be sensitive to conditions in a pot.  Maybe it applies to standard Poncirus as well. The ones growing in pots have very few leaves while the ones growing in the ground are fine.  Uneven/incomplete  watering or other stressful conditions could be sending  the message, 'Wait for a more favorable  environment before sending out new growth' 
Can you plant your Poncirus in the ground?

They will soon kick off extra fruits.  If there are too many in a month from now, thin them then.

Citrus General Discussion / Re: Marsh Seedless White Grapefruit
« on: May 22, 2022, 09:57:00 AM »
In South Florida, my grapefruit would start to be pickable but still be sour in December, and then continue to sweeten until May or June, when they would fall off the tree. 

Citrus General Discussion / Re: looking for interesting varieties
« on: May 12, 2022, 02:45:28 PM »
Danil, what is your climate zone?

It sounds like you are going to grow plants indoors as key lime is very cold sensitive.

A Russian site

Citrus General Discussion / Re: Juice concentrate?
« on: May 05, 2022, 11:55:55 PM »
When possible eat the fruit and not the juice.

Juicing fruit takes away the fiber that slows down absorption of sugars, and thus slows the sugar spike.  Fiber also has nutrients. 

Citrus General Discussion / Re: Pollen collection and storage
« on: April 21, 2022, 02:10:57 AM »
Use foam type swabs to transfer pollen. I don't know what type and style of foam is normally used for this application, i.e., polyurethane, polystyrene, silicone, etc.

I ordered

Polyploid plants often have thicker leaves and more serrated leaf margins

My best guess  either the spray was over applied, sprayed in the heat of the day, or not a low biuret variety

I believe it is not low biuret.  The package did not indicate.  The data sheet said it was low biuret. 

Urea from Alpha Chemicals caused extensive burning of leaves.   Defoliation goes from none to complete leaf loss depending on the plant.  There is some minor damage on most trees. 

Citrus General Discussion / Re: Leaves slowly willting
« on: February 21, 2022, 09:23:48 PM »
On a sunny day, what is the temperature inside?
Finding that out could eliminate some possible causes to the wilting.

Cold Hardy Citrus / Deciduous citrus developed in Florida
« on: February 08, 2022, 03:20:23 AM »
Selection 1: ‘Sherman’. Early Ripening (October) and cold hardy. The tree is actually deciduous. Fruit is seedy. Flavor is mild, but with solid brix in the 12 range. Ratios range from 14.5-14.8. Not graft compatible with US 942. Its primary drawbacks are thorniness and canker susceptibility. Released and cleaned. Displayed in October.

Citrus General Discussion / Re: Yuzu vs. Meyer
« on: February 01, 2022, 05:41:04 PM »
My Yuzu has very little juice.  Perhaps it is the variety, but they are not comparable for similar uses.  Meyer for lemon juice etc, Yuzu for uses with the skin and for marmalade.

Cold Hardy Citrus / Re: Alternaria and chlorosis
« on: January 30, 2022, 12:51:20 AM »
Article about citrus seed

Cold Hardy Citrus / Alternaria and chlorosis
« on: January 28, 2022, 12:42:30 AM »
Assuming this is the cause of albino seedlings

Would fungicide help?

Cold Hardy Citrus / Re: cold test on seedling New Zealand lemonade
« on: January 09, 2022, 09:41:35 PM »
Have you been bringing the plant back indoors after every exposure to cold?

Cold Hardy Citrus / Re: new thoughts on breeding hardier citrus
« on: January 08, 2022, 11:21:34 PM »
Crossing Satsuma with Poncirus yields a sour fruit. Based on the link above, domesticated Satsumas have less sourness, so would be the preferred choice as the sourness is not coming from both parents.

If these wild species were available, it would be good to try for hardiness.

Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: January 08, 2022, 11:58:07 AM »
This is fascinating, how cold has it gotten so far?  Looking forward to seeing how well they make it though the rest of the winter. 

Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: January 03, 2022, 10:04:42 PM »
A-026 is actually an F-2 seedling of C 35 Citrange, itself a hybrid of Ruby blood orange and Poncirus.

Interesting, Morton, Rusk and Thomasville all have Ruby parentage

Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: December 31, 2021, 06:44:31 PM »
That is very encouraging, a hardy deciduous F1 plant with improvement in fruit and only 4 seeds. 

Citrus General Discussion / Re: Urea Spray
« on: December 16, 2021, 10:47:34 AM »
Is there enough biuret in urine to be a concern?

Cold Hardy Citrus / Re: Taste Test
« on: December 04, 2021, 06:46:09 PM »
2. Bishop citrandarin seems very promising , Does anywhere in Europe cultivate Bishop citrandarin and what are the experience concerning fruit quality and frost hardiness ?

It is doubtful that it is in Europe.  However if anyone grew a lot of US 852 from seed which should be available In Europe, there would be an excellent chance that a seedling would be of better quality than what I have, mine is just a chance seedling that I bought thinking it was US 852.

Seedlings of US 852 have been sold in Europe as HRS 899 a, b, c, etc.  They have varying degrees of hardiness, leaf shape, and taste.

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