The process of increasing the length of internodes prior to flowering is called $........$.

Which enzyme stimulates the germination of barley seeds?

The hormone involved in the metabolism of food material in cereal grains during germination is

Which of the following are effects of gibberellins?
$(a)$ It helps overcome apical dominance.
$(b)$ It delays senescence,thus fruits can be left on the tree longer.
$(c)$ Increase in length of axis.
$(d)$ It is used to speed up the malting process in brewing industries.
$(e)$ It induces parthenocarpy.
$(f)$ Promotes female flowers in cucumbers.

Dormancy of seed is broken by

The activity of $\alpha$-amylase in the endosperm of barley germinating seed is induced by