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Messages - Walt

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Back in the mid 1970s when I was in grad school, I came across a book in the KSU library with the title Sweet Potatoes.  It was the proceeding of a conference of sweet potato breeders.  Included were a few chapters on sweet potato leaves.  One was on nutrition of sweet potatoes.  They are better for us than most greens.  In some cultures their leaves are a significant part of the diet.  Some varieties are grown just for the leaves.  I tried eating some and i love them.  They are good in salads and stir fries.

Thanks for all this information.  In breeding hardier mandarins, Pociris-mandarin crosses, one problem is fruit size.  Using bigger mandarins could help.

Citrus General Discussion / Re: mulch refresh day
« on: March 20, 2021, 03:13:20 PM »
I've been thinking of button quail in my greenhouse.  What birds do you have?

Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: March 19, 2021, 03:41:42 PM »
I'm doing my email etc. from a public library so my time is limited.  Yesterday I didn't get a chance to finish.
As I said, freezing broke some pipes.  But I spent some years as a plumbers assistant in my younger days, So all I had was cost of plastic pipes.  In other words, the only real damage was to the citrus.
So Many seedling look bad.  These were seedlings from US 852, Taitri, and Clemtriclem.  I am treating them like they are living, in hopes that some will come back from their roots.
I believe the following are dead, but I'm hoping some come back from roots.
Citrus medica seedling.  This is just a source for precocity.  Online reports (few) say it is very cold sensitive.
Finger lime on Ponciris.  I got it for precocity, but I became interested in it for itself.  The Ponciris rootsock came through in good health.
Unnamed kumquat.  I bought this because it was in bloom and cheap.  And I love kumquats.  I was suprised it was even hurt.  But I'm sure the temperature was very uneven in the basement.

Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: March 19, 2021, 03:23:58 PM »
What is the supposed hardiness of US1279, US 1281 and US 1282?
Last Edit: September 24, 2020, 04:26:30 PM by mikkel

I don't knw.  I haven't seen anything published on their hardiness.  Al I know first hand is that they were unhurt by my winter damage this winter.  They were not at all dormant but survived a freeze that killed some other citrus.

Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: March 18, 2021, 03:13:12 PM »
Bad news. 
Most of North America was hit by a worse than usual artic storm a while back.  Until then, this winter had been much warmer than usual.  And my citrus had been mostly in my basement doing PK.  They would have been doing better with more lights and warmer temperature, but they were OK.
Then that storm hit.  Electricity was off for a while.  We turned on the gas cook stove and kept the kitchen and bathroom from freezing.  Extra blankets kept my wife and I from freezing.  But in the basement, things were not so good.  The pipes going to the laundry room froze and broke.  So $100 damage, more or less.  Not bad compared with reports from Texas of $1,000 and more damage to some houses. 
But my citrus wasn't so lucky.  I had thought them safe in the basement.  But un-adapted citrus, actively growing, aren't so hardy as citrus that gradually get used to the cold. 
US 1279, US 1281, and US1282 came through fine.  Many others didn't.  I lost many F2 seedlings.  Other breeding stock were lost.

Ilya. Very interesting and impressive results. While the percentage of survivors is low,  any at all is success.  Congratulations!

Cold Hardy Citrus / Re: Yuzu Ichang Papeda cross
« on: November 09, 2020, 01:05:58 PM »
Seedless Kishu mandarin is pollen fertile and 50% of its seedlings are seedless.  This is not from my own experience, but is from an online journal paper.

My 2 foot tall finger lime bloomed this summer and set fruit.  They are still very small.  I don't know if they will stay on the tree.
The only only other citrus in bloom at the time was a kumquat which was next to it.  Both set fruit, but I expect the kumquat self pollinated.

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: October 12, 2020, 01:06:20 PM »
I'm always glad to learn about someone growing Poncirus hybrids.  Please do keep us informed of results.

Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: September 24, 2020, 03:48:43 PM »
US 1279, US 1281, and US 1282 came from Brite Leaf nursery.  It is in Florida, but it has strict quarentine in place and is allowed to ship outside Florida.  They do not sell these as varieties, but they trialed them as rootstocks.  I bought a Satsuma and 2Valencias just for their roots.
I was very happy when they arrived today.  The plants are about 1 meter tall, from the ground level.  They look extremely healthy.  And 2 of them are showing sprouts from the rootstocks, which is good for my use.

Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: September 24, 2020, 03:40:46 PM »
I've spent a great deal of time this summer trying to get the citandarins US 1279, Us1281, and US 1282.  These are relatively unrelated citandarins, each with lmore than 95% zygotic seedlings.  Together with US 852, these are enough variation that I don't need to worry about inbreeding

Other unrelated breeding material I have are;
Seedless Kishu mandarin, with a dominant gene for seedless.
Citrus medica, which is reported as quite precocious and zygotic.
Finger lime, which I've read mixed reports as being precocious.  All zygotic.
P. trifoliata+ seedlings.  Unproven as breeders, but should lack the Ponciris taste and be zygotic.

Still to get are;
F, hindsii, Hong Kong kumquat, which I've read is quite precocious, and zygotic.
Laaz's precocious P, trifoliata.  I had it and it died, but I lost a lot of stuff that winter, so I'm not blaming the plants.  It is not zygotic, as far as I know. And it has not produced precocioous seedlings nor grandchildren.  But it hasn't been tested enough for me to be sure it won't produce precocious grandchildren.

Citrus General Discussion / Re: Haydite
« on: September 16, 2020, 12:01:29 PM »
I used Haydite when growing bonsai.  Most people think bonsai are grown in a medium such that they grow slowly.  Actually we try to grow them in perfect conditions to better shape them and get some thickness to the trunk.  Depending on the species, they need constant trimming.

Cold Hardy Citrus / Re: kishu mandarin x poncirus?
« on: September 11, 2020, 11:43:01 AM »
I have aquired seedless Kishu with the intent to cross the seedless trait into my breeding population.  So obviously I think it is a good idea.  Let us know how it goes.  Given that you are in zone 7, you might get seedless citandarins in the F2 that are hardy in your zone.  All the citandarins I'm tasted have been very sour, but I liked the juice with water and stevia extract to sweeten it.   Keep us up to date on your work.
I have tasted Clem tri clem (Cementine x trifoliate) x Clementine.  It was sour too.  But I've read that Dr. Brown had some 3/4 mandarins that were good.

Citrus General Discussion / Re: Citrus in bloom
« on: September 04, 2020, 12:06:26 PM »
This summer I saw a kumquat with buds on it.  The plant was in a garden shop attached to a hardware store.  It had no name but the tree looked healthy and the price was good.  So I bought it.  It is now blooming, more than when I bought.  And fruit are very small but growing.
The finger lime I bought last year is finally blooming.  30 blooms yesterday.  More today.  Anyone have some Ponciris pollen?  Probably not.  Next year maybe I'll make the cross.

Citrus General Discussion / Re: Any cold hardy citrus?
« on: August 26, 2020, 12:41:04 PM »
I'm in Zone 6, very near zone 5.  I have had several Ponciris trees outside in the ground for about 7 years, with new ones added most years since then.
I started with seeds from 2 trees which are seedlings brought from Korea maybe 50 years ago.  The owner isn't sure of the year.  I have used this source and other sources for later planting.  Those second generation from Korea seed have generally survived.  It seems to depend on how bad the first winter is.  If they make it through the first winter, they'll mostly be OK later.
Precocious seedlings from Laaz all died.  They were smaller than most going into the winter.  I'll be trying again before I blame the seed.
A seedling from died for me during the same year seedlings from Laaz's seeds died.  The mother trees for oikostreecrops are growing in Michigan, so I think they might have survived here if they had been grown better before planting out.
I do get twig dieback most years.

Citrus General Discussion / Re: Covid
« on: August 11, 2020, 01:06:19 PM »
Keep us informed about your situatiom.  We wish you a speedy recovery.

Temperate Fruit Discussion / Re: Maypops (in zone 6a/5)?
« on: August 03, 2020, 12:47:23 PM »
I am in Ellsworth, Kansas.  This is northern zone 6, very near zone 5.  It grows fine here.  I get a few fruit most years.  I think I have only on plant, though I got it from a neighbor and it might have been 2 or more plants.  It had grown under a 1.5 m sidewalk and was taking over his yard.
A couple of years ago, I gave my daughter in Kansas City MO a start.  Hers is also doing fine.
If it doesn't live for you in zone 5, don't blame the cold.  It could be drainage or something else.
I read reports on other forums that maypops do well in zone 5.

Large fruit and precocious.  I ordered one immediately. What I got was a graft, not a seedling.  It was in a 2 inch, 5cm, pot.  And the plant was 18 inches tall. 42 cm?   I've never seen such a big plant in such a small pot.  But it seems quite healthy.
What I read is that C. medica seed is zygotic.

Making a cut above a bud can make the bud just below the cut start growing.  But that wouldn't work on mature wood where dormant buds can't be seen.  It might help a bud grafted onto mature wood. 
And there is thread grafting.  Drill a hole in the trunk and poke a limber twig, still attatched to the tree. through until it fits snugly.  The  twig grows wider and makes the graft. Then twig is cut between the trunk and the limb the twig origionally grew on.  Bonsai growers use thread grafts to put branches exactly where they want them.
Youtube has many demonstrations of thread grafting.

When I moved to a rural area about 20 years ago. first thing I did was dig 6m x 6m hole into a souyh facing hill.  I lined it with used railroad ties and used recycled glass to make a roof.  A cheap greenhouse.  And I lived in it that summer.  At night I would look up at the moon and stars.  I wish I was still living there.

Citrus General Discussion / Re: How to keep citrus seedlings growing
« on: March 04, 2020, 12:38:36 PM »
About 40 years ago I got a speck of perlite in my eye.  It was dust from the newly opened bag.  It was very painful, think of broken glass in your eye.  I had to go to an eye doctor to have the speck removed.  I've never tried it again.

Citrus General Discussion / Re: Best way to root calamondins?
« on: February 26, 2020, 04:14:46 PM »
You've heard of Kanopolis?  My garden/orchard is across a fence from farm land on both sides.  Right now both fields are being used for hay with no spraying.  But any time one or both farmers could change to other crops and spray herbicides and/or insecticides which might blow onto my land.

Citrus General Discussion / Re: Best way to root calamondins?
« on: February 25, 2020, 12:58:57 PM »
Adjusted for age, cancer was more common in the 1950s, when pollution of all kinds was more common.  I'm speaking of the USA.  This would be different in other parts of the world.

Cold Hardy Citrus / Re: hybrids with precocious Poncirus
« on: January 29, 2020, 04:36:04 PM »
Do you still have any of the hybrids?  Have you tried growing an F2 population or backcrossing to the precocious trifoliate?
If the hybrids still exist, I am interested in scions and/or seeds.

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