Describe briefly Arithmetic growth

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#### Solution

Arithmetic growth: If the length of a plant organ is plotted against time it 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 e.g., length of a plant is measured as 2,4, 6, 8,10,12 cms at a definite interval of 24 hrs. It is found in root or shoot elongating at constant rate. Arithmetic growth is expressed as L_{t} = L_{0} + r_{t }Here, L_{t }= length after time t. L_{0} = length at the beginning, r = growth rate

Concept: Growth - Plant Growth Rate

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