Which was discovered first?

It promotes bolting in beet,cabbages and many plants with rosette habit.

Many discoveries in science have been accidental. This is true for plant hormones also. Can you justify this statement by giving an example? Also,what term is used for such accidental findings?

Which of the following can be used to control dwarfism in plants?

Genetic dwarfness can be overcome by treating with

In green plants,cell elongation in the internodal regions is caused by which of the following?