I am going to test this chart and see if I can prove or disprove it, if I can.
I will post the results as I am about to start some new seeds for my next batch. I will upload pictures from seed to sexxing and see what happens.
I will have to repeat the process a few times to get accutate results, so don't expect this to happen over night, but as I have expeiremented with lighting I will now toll with the idea of sexxing from seeds.