Define/Explain: Vernalization.
(N/A) Vernalization is the process where the flowering of a plant is promoted by exposing it to a specific low temperature for a definite period of time. This treatment ensures better and earlier germination of seeds and leads to earlier flowering in the plants that develop from them. It is an artificial method used to shorten the vegetative period of plants.
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Which of the following pigments absorbs red and far-red light?
The relation of flowering to the lengths of light and dark periods was investigated by two experiments. In one experiment,the plants were subjected to dark periods of various lengths while the light periods were kept at $4$ hours. In the second experiment,plants were kept in dark periods of various lengths while the light periods were kept at $16$ hours. The number of flowers formed in relation to these periods is shown in the table. These results indicate that flowering:
Dark periods (hours) Flowers formed (Light: $4$ hrs / $16$ hrs) $8$ $0$ / $0$ $10$ $0$ / $0$ $12$ $4$ / $6$ $14$ $5$ / $7$ $16$ $5$ / $8$
| Dark periods (hours) | Flowers formed (Light: $4$ hrs / $16$ hrs) |
|---|---|
| $8$ | $0$ / $0$ |
| $10$ | $0$ / $0$ |
| $12$ | $4$ / $6$ |
| $14$ | $5$ / $7$ |
| $16$ | $5$ / $8$ |
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View SolutionThe pigment involved in photo-perception during flowering is:
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