Seeds of parasitic plants like $Orobanche$ germinate in the presence of

Which of the given events does not happen during seed germination?

In $Nigella$,what is the effect of light on seed germination?

What decreases in a seed as it matures?

Based on the following statements,choose the correct option given below.
Statement $I$: Dormancy is a state of metabolic arrest that facilitates the survival of seeds during unfavourable conditions.
Statement $II$: Mature and viable seeds do not germinate even in the presence of favourable conditions unless the dormancy period is completed.

Treatment of seeds at low temperature under moist conditions to break its dormancy is called