Inhibitor B, abscission II and bormin are related to which hormone?

During mid-l960s, three independent researchers reported the purification and chemical characterization of three different kinds of inhibitors: inhibitor-B, abscission II and dormin. Later all the three were proved to be chemically identical. It was named

Plant growth regulator, which promotes senescence and abscission of plant organs, is also related to which of the following physiological effects?

Ageing is related to which of the following hormone?

Which of the following is not related to hormones?

Which plant hormone promotes seed ,but dormany and caues stomatal closure Or Presence of ehich of the following in seed is associated with doemancy Or Leaf abscission , fruit fall , but dormancy occurs by which phytohormone

In which layer of abscission zone, the breakdown of cells occur?