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Old August 23, 2009   #9
TZ-OH6
Tomatovillian™
 
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Join Date: Feb 2008
Location: Mid-Ohio
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Yes, you are correct, that was a typo on my part, it should be [F1xF1other = F1, F1xF1same = F2]. Thank for catching that.


If I cross BigBoy F1 x Momotaro F1, I get a new F1, but if I cross BigBoy with another BigBoy plant, it would be the same thing as if I let it self pollinate, therefore the offspring would be F2.


And because F2s are segregating each plant is genetically different from all of its siblings, crossing two F2s (a sibling cross) does not give you F3 the way it would if you let an F2 plant self pollinate, you get another F1. You would probably have the sibling parents of that cross name coded [e.g. F2sibA X F2sibB] so you are back to a situation with two different parents = F1.


The thing I have trouble keeping straight when lableing seed is that F# plant give me F#+1 seed. I keep accidentally labeling seed from F1 plant/fruits as F1 seed instead of F2 seed [which grows into F2 plant].
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