Question
Describe briefly :
Sigmoid growth curve
Sigmoid growth curve
✓
Answer
Sigmoid growth curve: Keeping the factors affecting the growth rate the same, if we measure the growth of cells (plant parts) or the entire plant, then we see that their rates are not the same. If a graph of growth rate is made with time then an S-shaped or sigmoid graph is formed. This is called growth curve. This entire growth arc can be divided into four parts
(i) Lag period: This is the initial stage of growth in which growth occurs at a slow pace.
(ii) Maximum growth period (Log or exponential period): At this time maximum growth occurs at a rapid pace.
(iii) Deaccelerating period: During this period the rate of growth in plants slows down again.
(iv) Stationary period: There is no growth in plants during this period.
(i) Lag period: This is the initial stage of growth in which growth occurs at a slow pace.
(ii) Maximum growth period (Log or exponential period): At this time maximum growth occurs at a rapid pace.
(iii) Deaccelerating period: During this period the rate of growth in plants slows down again.
(iv) Stationary period: There is no growth in plants during this period.
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