@clockworkhawkins
clockworkhawkins said: lets leave the realm of triploids and say I want to isolate diploids that are believed to create 2n gamete if I then pollinated them to a tetraploid and line bred from there could I end up with a tet many years down the line that produced 4n gamete?
Assuming that the ability to produce some 2n gametes is genetic then yes. In other plant species specific mutations have been found that cause errors that result in 2n gametes.
I've heard somatic double can be induced through stress during the development of buds such as temperatures above 110f?
Both high temperatures and low temperatures are known to cause 2n gametes. That would occur during the development of flower buds. Temperatures of 110F (42-43C) during the development of seed have caused somatic doubling. The high temperature was applied as a temperature shock lasting 20-30 minutes at the time of the first division of the zygote. Treating apical or axillary meristems during the development of vegetative buds with very high or low temperature shocks may produce chromosome doubling. Twin seedlings sometimes have polyploid (more sets than normal) chromosome counts.
