The Tropical Fruit Forum

Looks grafted - kind of looks like a cleft graft

23.70.177 has nothing to do with the root stock.  It is just an IP address

Go to the nursery and tell the owner you need a fertilizer with higher levels of potash and lower nitrogen.

Happy prosperous and healthy New Year. - Millet

Were going to crown you the forum's Carrizo champion.

Brian I sent you a private message. Look at your "My Messages".

I remember Brian earlier wrote about trying shallow but wider container culture for his citrus trees.   Certainly looks to have worked out successfully.  I have a small Okinawan Shikuwasa citrus tree, and will follow Brian's lead and plant the Shikuwasa in a shallow and wide container.  Should be a fun experiment.

C-35 fruit generally have 8 to 12 seeds per fruit (85% nucellar).

I don't know for certain what the Orange county root stocks were back then, but the two most rootstocks at that time in California were Troyer and Carrizo.

I found 5 seeds in a Dekopon (Shiranui).  First time I ever found a seed in this variety.

One thing about "seedless" citrus.  By USDA regulations in the United States, all citrus varieties that contains 6 seeds or less can be legally sold and marketed as seedless.

Kumin, I have the same type of water set up in my greenhouse as you have.  In my greenhouse, I have 100 X  55-gallon drums full of water, the free heat that they release into the greenhouse every night is measurable.   I also use them as benches for my container plants, witch grow amazingly will with the bottom heat. During the winter nights the water temperature in each barrel normally drop 3 or 4 degrees F, thus giving off 1,344 Btu each night per barrel  (134,400 free BTU per 100 barrels each night).

I go along with David Kipps, that the seedling has the fungi damping off, caused by the fungus rhizoctonia, Pythium or fusarium.  This problem is caused by over wet soil in cool conditions. There is nothing you can do about it now.   To avoid this from happing again, after watering place the container in a sunny window after each watering, so the top surface of the soil quickly dries.