Botany - Plant Growth and Development Question with Solution | TestHub

In arithmetic growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures. The simplest expression of arithmetic growth is exemplified by a root elongating at a constant rate. Look at Figure 15.5. On plotting the length of the organ against time, a linear curve is obtained. Mathematically, it is expressed as
L_t= L₀+ rt
L_t= length at time ‘t’
L₀= length at time ‘zero’
r = growth rate / elongation per unit time.