Two different Colors in F1 Generation

[ThomatoGarden]

I crossed Wapsipicon Peach with Primabella.
To get F2 Seeds i grew the F1 Generation in Winter.
To be on the safe side i grew 2 Plants from each cross.
Now i got two different colored Fruits, one Plant has red Fruits as expected,
the other has yellow red Fruit.
Did the cross not work, and it is WP which got red under artificial light ?
Or is it possible to get two different Colors?

[Adrian]

Hi thomatogarden,
The F1 between a yellow and a red fruits can giving fruits who becoming red more slowly.
Picture of one of my f1 between (canestrino di lucca x andine cornue) x roman candle
https://opensourceplantbreeding.org/forum/index.php/topic,928.msg16017.html#msg16017
Have you seeing a more vigogous plant that wp?

[ThomatoGarden]

Can't say if a plant was more vigorous than WP cause there was no original Plant to compare
to and the growing conditions in House are to different.

[Tim DH]

Hi Thomas,
     That is annoying and worrying.
     I've certainly had over Winter grown plants do funny things, but if the two plants are consistently showing different coloured fruit, that would suggest a genetic difference.
     The simplest explanation I can think of is that your Primabella parent was an accidental F1 itself.
Tim DH