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

Identify the incorrect pair$(s)$ from the following:

Identify the incorrect statement/s.
$I$. Kinetin is a derivative of adenine which is a pyrimidine.
$II$. The technique of decapitation is widely used in tea plantations.
$III$. Ethylene is a gaseous plant hormone.
$IV$. Use of $GA$ hastens the malting process in brewing industry.
$V$. $ABA$ is a growth promoter.

The phytohormone combination which is the key regulator of cell differentiation and morphogenesis is

What is the role of light in plants?

Statement-$I$: Spraying sugarcane crop with $\text{IAA}$ can increase the yield by $20$ tonnes per acre.
Statement-$II$: Cotton and coriander represent developmental heterophylly.