These are the phases of plant growth:
Formative Phase
During the formative phase of growth, growth is dominated by cell division. Cell division leads to a rise of new daughter cells from pre-existing parent cells. Plant cells divide by the process of mitosis, where identical cells are created. It is carried out in two steps:
- Division of Nucleus or Karyokinesis
- Division of Cytoplasm or Cytokinesis
In higher plants, the division of cells begins in the meristematic region.
Cell Enlargement and Differentiation
During this stage, the newly formed cells grow in size, which results in the growth of the tissues and organs. The growth in the size of the cells is due to various factors such as absorption of water, formation and growth of vacuoles and the thickening of the cell wall.”
Cell Maturation
During the maturing process, the cells take a definite shape and structure for a specialised function. This growth leads to the differentiation of the tissues.
Leave a Reply