beckygardener said:Does the tet conversion have any affect on the blooms?
We can investigate that question by looking at the information in the AHS registration database.
Let's look just at the information for 'Exotic Echo'.
As a diploid it has produced 46 single registrations and nine double registrations. As a tetraploid it has produced 19 single registrations and 12 double registrations.
That works out to be 9/55 or 16.4% of its registrations are doubles as a diploid and 12/31 or 38.7% of its registrations are doubles as a tetraploid.
Although there are more double registrations for the tetraploid conversion of 'Exotic Echo' we do not know if the difference is significant or just a result of random sampling. To find out if it is significant we have to do a statistical analysis or test of the two percentages. When I did the test the result was that it is on the borderline of significance. There just might be more double registrations when 'Exotic Echo' is tetraploid. However, that would not tell us why. It could just be that hybridizers who used 'Exotic Echo' as a tetraploid were more likely to cross it with registered double pollen parents. In other words it could just be a bias and not a biologically interesting effect.
