So here is the brassica seed test at 7 days. I'm really not seeing any purple on any of the seedlings at this stage - first true leaf just emerging. Some of the seedlots (mostly the P series) have a few tiny seedlings emerging later in the row with purple cotyledons.
All the seedlings under the LED are starting true leaf now, while our salad mix in the greenhouse planted the same day is a little bit slower. Michihili is ahead by a notch with true leaf a little longer. This is nice to see because the seed they came from (commercial source) was extremely slow! Fresh seed seems to be the answer to that.
After the pics I topped up these containers with some compost and watered.
I am hoping to see those little true leaves in another week.