I am conducting an experiment with the B. liniflora seeds. I poured some on moist media, without pretreatment. Another group I tried the 10% bleach solution, which yielded that purple dye within like 15 seconds. The rest are sealed, in the fridge, for a month, where I will try both the pretreatment and just immediate sowing.
After one week, both pots began germinating seedlings the same day. However, there are 5 in the pre-treated pot and 2 in the untreated pot. We'll see what happens as the month pregresses and the fridged seeds get sown.