Clinostat is the apparatus used to

Opening of flower is an example of

One hormone hastens the maturity period in juvenile conifers,a second hormone controls xylem differentiation,while the third increases the tolerance of plants to various stresses. They are respectively:

The movement in the "Touch-me-not" plant $(Mimosa pudica)$ in response to touch is known as:

Which of the following pairs is not correctly matched?

Seed germination requires:
$I$. Light
$II$. Suitable temperature
$III$. Moisture
$IV$. Oxygen
Select the correct option.