HORTICULTURE

Detailed explanation-1: -Auxin is the hormone that causes bending of the plant towards light. Auxin synthesized by the cells present in area receiving light moves towards the shady side of the stem and causes elongation of that part. Thus the shoot appears bent towards light.

Detailed explanation-2: -Phototropism is a directional response that allows plants to grow towards, or in some cases away from, a source of light.

Detailed explanation-3: -The bending of the plant towards light is known as phototropism. It is due to the plant hormone auxins. When the growing parts of a phototropic plant detect sunlight, auxins (synthesized at the shoot tips) help the cells grow longer.

Detailed explanation-4: -Plants bend toward the light because cells on the shaded side elongate more, this happens just because of the action of the hormone Auxin.