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Messages - David Kipps

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1
My first impression of what a fig would taste like, was from my familiarity with fig newtons, which I loved.  I was disappointed when I got my first chance to taste a fresh fig.  Quite different. 

2
Does M. velutina possess the trait of being able to develop fruit in the absence of pollination?  If you made a triploid version of it, would it grow seedless fruit, or not grow fruit at all?

3
Cold Hardy Citrus / Pinching tender tips against winter kill ?
« on: September 04, 2025, 08:41:40 PM »
I usually experience a lot of the late growth spurts winter killing on my citrus (even on P.t.), here in north-central Virginia.  I'm am theorizing that if I pinch out the actively growing tips at some time before cold weather, that the remaining tender shoot might harden up to a greater degree than if it were just allowed to keep lengthening.  Does anyone have experience or knowledge whether this would save some of the later growth flushes?  What about timing?

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Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: August 14, 2025, 07:03:57 AM »
kumin:  You mention "seeds germinate well up to 6-7 months of cold storage".  Is your point just that the seeds do well in storage for later planting, or is your point referring to the need for cold stratification?  A separate question: do any citrus benefit from cold stratification?  Also, do you know if germination is affected by how long the fully developed seeds remain inside the fruit?  Yesterday, I cut open a Poncirus fruit to find seemingly fully developed seeds, even though I don't expect them to ripen for another month, and wondered how viable they are when picked early?

5
Citrus General Discussion / Re: Amalfitan Rangpur?
« on: August 05, 2025, 09:13:04 PM »
I've seen that lack of petiole, but only on a couple leaves of a new seedling, never after they have that many leaves.

6
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: July 25, 2025, 03:52:04 PM »
Like you said, hardiness will possibly be greater the next year just due to to increased size (and I'll add, increased root growth).  If one of those "die-to-the-ground" seedlings has other tempting traits, get it grafted onto P.t. right away.  That seems to make a lot of difference for me.

7
"It's a numbers game" - - Underline that !!!

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Citrus General Discussion / Re: Side effects of Acidless gene
« on: July 25, 2025, 03:32:21 PM »
A quite small effect can potentially make a difference to someone like me with a short season.

9
Did the clementine parent you started with have thorns?  I've wondered just how the totally thornless is inherited.  I once planted the seeds from some store bought clementine fruit, and got two plants that have always been totally thornless from the start.  Also planted seeds from a store bought Meyer lemon fruit and got a totally thornless plant.

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Citrus General Discussion / Side effects of Acidless gene
« on: July 23, 2025, 08:39:26 AM »
Assuming all other genes are the same, does the presence of the simply inherited acidless gene (like in Siamese Sweet) free up the tree's resources to improve growth or sweetness or other quality traits?  I assume that the production of acid is one of the drains on available energy.

11
Cold Hardy Citrus / Re: Citsuma Prague
« on: July 20, 2025, 09:06:16 AM »
Kumin:  I've heard that as well.   I think it applies differently to different species, with some species the source position is quite critical.  Other species are affected much less, or not at all.  When I am making clonal copies of one of my trees, I usually just cut one twig to get multiple buds or pieces for grafting.  Yet that one twig can produce both a weeping clone and an upright clone.

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Cold Hardy Citrus / Re: Citsuma Prague
« on: July 08, 2025, 09:42:25 AM »
For whatever the reason is, I've also had a single cultivar behave differently (like your two pictures) when grafted onto two different Poncirus seedlings.  No chimera was involved.

13
Citrus General Discussion / Re: Cause of Extra Dwarfing
« on: May 26, 2025, 07:49:03 PM »
Thank you, BorisR.  That will make a big difference.  Otherwise I would find it easier to use the Flying Dragon as the pollen parent.  I'll try to make a point of using it both ways.

14
Citrus General Discussion / Re: Cause of Extra Dwarfing
« on: May 26, 2025, 02:47:55 PM »
Thank you, each of you, for your answers.  The reason I'm asking questions is because I am doing some breeding for winter hardiness.  If I sometimes use Flying Dragon in crossbreeding, I assume that the contorted trait will eventually resurface a few times in future generations.  I'm wondering if such will automatically be dwarfing, even if many of the other Poncirus traits (such as flavor and trifoliation) have been bred out?

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Citrus General Discussion / Cause of Extra Dwarfing
« on: May 24, 2025, 09:42:27 AM »
Poncirus has been used both for dwarfing and for imparting some hardiness.  I gather that the Flying Dragon variation of Poncirus will do both of these to an additional degree.  Does anyone know if this additional degree of hardiness/dwarfing is directly, and only, related to the presence of the contorted condition?  When a heterozygous strain of Flying Dragon throws a few non-contorted seedlings, will those (when used as rootstocks) impart no more hardiness/dwarfing to the scion than will a regular Poncirus?  Is a homozygous Flying Dragon any more dwarfing than a heterozygous one? 

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Cold Hardy Citrus / Re: The pistil of citrange Rusk
« on: May 15, 2025, 07:37:33 AM »
I don't have any Rusk, but your picture looks a lot like flowers that I had on several of my hybrids this spring following a late freeze that killed a lot of 3" new growth.  Earlier flowers and later flowers looked normal, but these were malformed, much like your picture.  I'm blaming it on cold damage during a critical development stage.

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Cold Hardy Citrus / Re: Breeding a blood yuzu
« on: May 11, 2025, 08:26:32 AM »
Shoot colorization ?  Are you meaning the reddish/purplish color of very new small tender leaves when a shoot is just starting to grow, but later at full size are changed to a normal green?  Are you saying that that trait is mutually exclusive to the trait of reddish fruit flesh (never both traits on the same plant)?

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Cold Hardy Citrus / Re: Desert lime in pot
« on: May 10, 2025, 11:41:11 AM »
hedgescholar:  What was your overwintering temperature for the razzlequat that has produced a flower bud?

19
Cold Hardy Citrus / Re: Desert lime in pot
« on: May 10, 2025, 07:44:19 AM »
Mulberry0126:  Will you have the Eremomandarin and Eremorange for sale?  Or any other Eremo relative?

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Cold Hardy Citrus / Re: Desert lime in pot
« on: May 09, 2025, 08:23:39 PM »
I'm hoping to get one to use for breeding, to mix its traits into my diverse semi-hardy population here.  Does anyone know if it can be equally useful as both a pollen donor and as a seed parent?  Are there specific conditions required to initiate bloom?  I already have a hybrid that was sold as "Razzlequat" many years ago, but it has never bloomed for me, when other citrus have already done so for many years.  I'm wondering if that family perhaps requires more heat or dry spells to initiate flower buds?

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Cold Hardy Citrus / Re: Desert lime in pot
« on: May 09, 2025, 03:07:08 PM »
How did you manage to get one?  For several months I've been on the notify list for when they become available, and I've heard nothing.  Another question: what rootstock is it grafted onto?  (their site says that they are grafted)  It would seem that the soil mix should be chosen according to the needs of the rootstock, rather than according to the scion.

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Cold Hardy Citrus / Re: Sundragon exhibiting bifoliate leaf.
« on: April 10, 2025, 08:08:44 AM »
Kumin:  Did you just have a killing frost Wednesday morning?  What effect did you have on outside new growth?  I assume your Sundragon was inside?

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Cold Hardy Citrus / Re: Sleeping graft
« on: April 10, 2025, 08:04:48 AM »
I've also had grafts (budding) that sat dormant, even a couple years.  I've 90% given up on some, and made a new graft onto a secondary leader of the rootstock, only to have the first (old) graft also start growing.

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Cold Hardy Citrus / Re: Winter frost damages
« on: March 27, 2025, 06:21:56 PM »
Florian,  The Citrangeremo looks like it is girdled at the base (for whatever reason) and the good top was feeding callus growth just above the girdle.  I guess it would be difficult to get another root system to graft into it at that point.  The green twigs look like they are still alive and could be grafted onto something else, thus saving the variety.

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Citrus General Discussion / Re: How long before you know if a graft takes?
« on: February 28, 2025, 06:49:55 AM »
For me, some graft/buds start growing in just a couple weeks, while others take months.  I've even had a few that I had given up on after a year (or two), so I did another graft elsewhere without harming the first one, then both started growing.

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