The quest for Yellow

Very nice, don’t let the moles get it. Neil

When breeding for yellow, it is useful to have a look at the plastids (or chromoplasts)

Karl, how does one do this? Is is just a matter of looking at it under a binocular microscope? Will x20 or 40 do?

Jackie

I am turning “green” with envy. That is the shade of yellow I am trying to achieve. Some day I will get there. You should get as many propagated as you can. This is another case for increased time for evaluation, something amateurs benefit from.

Is it just a matter of looking at it under a binocular microscope? Will x20 or 40 do?

Simon,

You would need at least x100 to see large plastids. x400 or more would be better.

And be sure to compare matching regions of the petals of the different specimens.

Tracking the inheritance of three independent factors will make breeding for yellow a more straight forward process. It will be easier to predict which parents are most likely to give an improved color. Of course, one will still need to consider vigor, health, form, and so on.

Karl

So is their a data bank anywhere tracking yellows for their plastid size, plastid number and type of carotene? Much like the info being gathered on rose ploidy? I’m guessing there isn’t, unless the professional breeders have done as much. Not everyone has an x400 or more microscope in their basement, or attic. Or do they?

No, I don’t have one.

George, what about the Uni or the Hospital next door.

LOL… not that again !!!

:O)

I have an OP ‘Golden Angel’ seedling here (from Don) that people are welcome too if it picks up a bit and survives winter. I also think one of my unknown yellow minis is GA.

I’m after information about ‘Golden Touch’. Anyone grow it or tried it?

About Canicule I can confirm it is susceptible to disease.