Ah, that textbook talk — physical dormancy is when the seed coat is too hard, physiological is inside the seed sleeping. Scarification, like cutting or rubbing, breaks the hard coat so water can enter. But listen, I tried with a mango seed last monsoon, scraped and soaked it proper. That seed still never woke up — maybe some sleeps are just too deep, or I was too impatient.
#exams#study
Jump in to reply — no account needed.