Identify the partial parasite and total parasite plants,respectively,from the following.

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

Phytoalexins are secreted by plants in response to fungal infection. These compounds are generally

Leaves fall off from branches in winter due to

Study the following statements.
$I.$ "$X$" hormone promotes root growth and root hair formation, thus helping the plants to increase their absorption surface.
$II.$ "$Y$" hormone induces flowering in mango and also promotes rapid internode/petiole elongation in deep-water plants, hence helping leaves or upper parts of the shoot remain above water.
$III.$ "$Z$" hormone inhibits seed germination, increases the tolerance of plants to various stresses, and plays an important role in seed development, maturation, and dormancy.
Identify the correct names of hormones marked as $X$, $Y$, and $Z$.

Which of the following are plant growth promoters?