amen to that Willard...
Valin...IMO if your seeds don't germinate and produce hooks within 2 weeks, you are either doing something not optimum for germination or you got bad seeds....
you really want constant temps for germination (80-86F is optimum)...after they germinate and start growing, temperature variations have less impact...NOTE: If the temperature of your soil/seeds get above 94 or 95F and stay there for a pretty good while, your seeds will cook and not germinate at all...
just out of curiosity, are you using peat pucks to start your seeds in?