Hi,

39 seeds in a citrus paradisi 'Star ruby' / 'Red ruby' (i do not know )



I planted 36 seeds of the 39. There are 100% germination.

If there were a lot of other citrus blooming in the same area at the same time, that will produce seedy fruit.

That would be normal for a Duncan, but not the reds.

Is it possible that the fruit is 'Hudson', the original, seedy red from which 'Star Ruby' was produced? Perhaps a reverse mutation.

You got me "going" when you mentioned 'Hudson'.
I'd like to know more of the 'Hudson'. Have not been
around this one. I was told years ago that a limb sport,
I call them branch sports, did come from a 'Thompson'
Grove and was selected out by a Hudson J. McReynolds
in Orlando and that it was called 'Burgundy' or Burgundy
Red (Horticultural Varieties of Citrus - Robert Hodgson,
page 545).

I believe at one time there was a pink fleshed 'Duncan' that
came about as a branch sport from an established seedling
'Duncan'. As an added note: the non nucellar seeds could
impart more pigmentation in the fruit but a lot more seeds
may be seen as well. Reversion does indeed refer to a known
seedless variety throwing out an abundance of seed in some
or all the fruit and we may see both relatively seedless and
rather seedy fruit on the same tree.

Jim

Hello Snickles,
'Star Ruby' was developed by R. A. Hensz of Texas A & M University from irradiated seeds of the 'Hudson' Grapefruit.
Here is a photo of Hudson-
http://aggie-horticulture.tamu.edu/citrus/fiesta/varieties/pages/13.%20Hudson%20Grapefruit.htm
And here is a link to the history of Star Ruby-
http://www.citrusvariety.ucr.edu/citrus/starruby.html

Hi Davidmac:

Thanks for passing along the links.

I've had a standard 'Star Ruby' in ground
for a number of years. Have it right next
to a seedling 'Marsh' I grew back in the late
70's from a parent 'Marsh' on its own roots.

Just found this from Purdue that the 'Hudson'
is or may be, if the 'Hudson' and 'Hudson
Red' are the same plant, related to the 'Foster'.
The 'Foster Seedless' and the 'Foster' (Foster
Pink) are not the same plant as the 'Foster' is
purported to be seedy and the other is almost
seedless.

http://www.hort.purdue.edu/newcrop/morton/grapefruit.html

Jim