Photoperiodism was first observed in

Phytochrome is found in

Which of the following statements are $INCORRECT$ with respect to phytochrome?
$i$. Phytochrome is a light-receiving proteinaceous pigment present in the leaves of plants.
$ii$. Phytochrome pigment exists in two forms.
$iii$. Two forms of phytochromes are interconvertible.
$iv$. Phytochromes are located in the chloroplast of green cells.
$v$. Phytochrome $P_r$ form inhibits flowering in $LDP$ during the dark period.

Which of the following pairs is mismatched?

The red absorbing form of phytochrome gets converted to the far-red absorbing form after getting irradiated at

Chrysanthemum flowers in the winter season or in the evening because it is a: