I have read that some valencia trees grown in Chile produce seed in thier fruit because of the warm dry conditions all year round so if you could get seeds from them would they come true to type or no??

Yes, Valencia usually comes true-to-type from seed, as do most oranges. Florida Valencias almost always have at least one seed per fruit, and up to 6 in some cases.

wow thanks will definatly dry to find some now, Dr. Mannors you know everything thanks.

Am I lucky or what? well after finding out the good new from Dr. Manners i went to grocery store and guess what was it the produce Midknight Valencia. So i bought to just to test, and both had seeds in them one seed i accidently cut into so i am going to go and buy tom. or Sat. Also the orange excellent juice mmmm

Ooooh, I want one...can't find 'em here....send me one!? LOL
I tried T budding a few but they didn't take.

How well do oranges do on their own roots?


Patty, I just got 2 seeds, which I planted, from one of the Valencia oranges that I just got. If I get any more I will send you some.

Skeet

I have 5 valencia orange trees but none are labled with any other name. Is the Midknight just a different variety of the valencia? or are the midknight and the valencia the same?

"Valencia" is a collection of cultivars, all of which bear similar fruit which matures later than most other oranges. But there are many named selections, 'Midknight' being one of them.

Oranges can do quite well on their own roots, whether as seedlings or grafted to orange roots.

Advantages of sweet orange roots:
1. Vigorous, large trees
2. Heavy-bearing, and the fruit is of extremely high quality
3. They are among the most cold-hardy of all citrus root systems
4. They are tolerant to most of the viral and viroid diseases, other than psorosis.

Disadvantages of sweet orange roots:
1. They are shallow-rooted, so for outdoor-grown trees, they tend to need more frequent irrigation than most other root systems
2. They are susceptible to phytophthora root- and foot-rot. HOWEVER, 'Valencia' seedlings are less susceptible than other sweet orange varieties.