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The upcoming discussion will update you about the difference between Vernalization and Photoperiodism.
Difference # Vernalization:
1. It is the process of making a plant receptive for flowering stimulus by a previous cold treatment.
2. Vernalization brings about ripeness to flower.
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3. It has no role in inducing flowering.
4. Vernalization treatment is often prolonged.
5. Low temperature treatment must be applied throughout day and night.
6. The stimulus of vernalization is perceived by dividing cells, e.g.. shoot tips, embryo tips.
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7. It is believed to be mediated by a chemical called vernalin.
8. The stimulus of vernalization cannot be transferred to non-vernalized plants with the exception of Henbane.
9. The effect of vernalization can be reversed by application of high temperature immediately after cold treatment.
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10. Gibberellins replace the low temperature requirement in many plants.
11. The exact chemical perceiving the cold treatment is not known.
12. It is applicable to temperate and some tropical plants.
Difference # Photoperiodism:
1. It is the process of stimulating floral formation by relative lengths of day and night.
2. Photoperiodism has no role in bringing about ripeness to flower.
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3. Photoperiodism induces a plant to flower.
4 Photoperiodic induction requires treatment for only a few days.
5. Photoperiodic induction is interrupted by dark periods.
6. The stimulus of photoperiodism is perceived by leaves.
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7. Photoperiodism produces a chemical florigen for inducing flowering.
8. The stimulus of photoperiodic induction can be transferred to non-induced plants through grafting.
9. The effect of photoperiodism cannot be reversed.
10. Gibberellins can replace long day photoperiods in some plants.
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11. Phytochrome is the chemical that perceives the stimulus of light.
12. It is applicable to plants found all over the world.
