Question

Describe briefly:

Arithmetic growth.

Answer 1

If the length of a plant organ is plotted against time and shows a linear curve, the growth is called arithmetic growth. In this growth, the rate of growth is constant and increase in growth occurs in arithmetic progression.

For example, the length of a plant is measured as 2, 4, 6, 8, 10, or 12 cm at a definite interval of 24 hours. It is found in root or shoots, elongating at constant rate. Arithmetic growth is expressed as L_t = L₀ + r_t.

Here, L_t = length after time t. L₀ = length at the beginning; r = growth rate