Growth and development in plants-botany
Growth in plants: Growth is irreversible and permenant increase in size of cell or tissue or organ or entire plant body. It is always accompained by metabolic associated reactions. Growth in plants is indeterminate and grows till death due to the activity of meristems in plants. Growth can be measured by increase in protoplasmic content, fresh weight, dry weight, length, area, volume and number of cells. Phases of growth: In plants growtg and development each cell undergoes three phases. 1. Meristematic phase: In this phase meristematic cells divides continuously. The cells are active and this phase is also called as Cell-division Phase. 2. Elongation phase: The cells which are formed in meristematic phase becomes enlarged in thier size and forms vacoules at the centre of the cell. 3. Maturation phase: The cells are matured and differentiated into tissues to perform special functions like transportation food, water, minerals, etc,..