germination test - too hot?
Awhile back, I took about 20 packs of old seeds and decided to test for germination before I tossed them. I used the paper towel method. Not having a heating pad handy, I decided to leave them in the oven overnight with the light on. Unfortunately, the oven air temp was either 105F or 115F the next morning. (I forget which.) I figured I'd cooked my seeds, but left them on the counter for a couple of weeks anyway. Last night I decided to toss them, but did one last check first. I had good germination from 4 tomato varieties and Chinese mustard, no results from anything else.
So now I don't know for sure if the other seeds were ruined in my test or weren't viable to begin with. The seeds were various vegetables & herbs, from 4 to 10 years old.