Difference between Primary growth and Secondary growth
Difference between Primary growth and Secondary growth are in tabular form below –
No. |
Primary growth |
Secondary growth |
Definition |
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1. | Plant grow for their entire life and height comes from apical meristem, and the growth which occurs from apical meristems of the plant is called as primary growth. | Plant grow for their entire life and diameter of plant increases by the action of cambium, and the growth which occurs by the activity of cambium is called as secondary growth. |
Beginning |
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2. | In the plants, primary growth takes place at the beginning. | In the plants, primary growth is followed by action of cambium. |
Stops |
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3. | Once tissue differentiation completes, primary growth in the plants stops. | The secondary growth takes place in the mature parts of the plants. |
Development |
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4. | During the primary growth, development of cortex, primary vascular tissue and epidermis occurs. | During the secondary growth, development of secondary xylem, lenticels, periderm, secondary phloem and bark takes place. |
Plants |
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5. | All the parts of all plants are involved in the process. | Both angiosperms and gymnosperms are involved in the process. |
Growth |
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6. | This process results in longitudinal growth. | This process results in radial growth. |