HORTICULTURE

Detailed explanation-1: -Phototropism is the directional response of a plant that allows the plant to grow towards or in some cases away from the light. Process of phototropism: Leaf tips and stem tips have a hormone called auxin which is sensitive to light.

Detailed explanation-2: -Movement of plants in response to light is called Phototropism. In this case, light is a stimulus to which the plant can show two responses: i) It can move towards the light source-positive phototropism. ii) It can move away from light source-negative phototropism.

Detailed explanation-3: -Phototropism Examples Sunflower is a highly phototropic plant. They grow towards the sun and are also seen tracking the movement of the sun throughout the day. That is, the flower keeps changing its direction with the movement of the sun. Sunflower requires more light for its growth and survival.

Detailed explanation-4: -Phototropism is a directional response that allows plants to grow towards, or in some cases away from, a source of light. Photoperiodism is the regulation of physiology or development in response to day length.

Detailed explanation-5: -A plant’s response to gravity is called gravitropism. This is sometimes also called geotropism and describes the ability of plant parts to grow towards or away from the earth.