- Plant growth is a complex process that involves various physiological and environmental factors.
- The primary growth of a plant occurs at the tips of roots and shoots, where cells divide and elongate.
- The meristems are regions of actively dividing cells that give rise to new tissues.
- The apical meristem is responsible for primary growth, while the lateral meristem is responsible for secondary growth.
- Environmental factors such as light, temperature, water, and nutrients play a crucial role in plant growth.
- Photoperiodism is the response of plants to the length of day and night, which affects their growth and development.
- Plant hormones, including auxins, gibberellins, cytokinins, ethylene, and abscisic acid, regulate various aspects of plant growth.
- Tropisms, such as phototropism (response to light) and gravitropism (response to gravity), also contribute to plant growth.
- Plant growth can be influenced by external factors such as pruning, training, and grafting techniques.
- Plant growth is essential for the survival and reproduction of plants, as it allows them to compete for resources, reproduce, and adapt to their environment.