Difference between short day plant and long day plant

Asked by admin @ 23/08/2021 in Biology viewed by 300 People

Difference between short day , long day day neutral

Answered by admin @ 23/08/2021

Hi There,

Short-Day Plants:

1. They flower when exposed to day lengths shorter than a certain critical minimum.

2. What is more critical is the continuous dark period.

3. They do not flower if dark period is interrupted by a flash of light.

4. Interruption by dark during long light period does not stimulate flowering.

5. Flowering is not induced if plants are subjected to short light and short dark periods (e.g. 6 hr. light followed by 6 hr. dark).

6. Gibberellic acid (GA) does not induce flowering except in a few plants like balsam.

7. They are also called long night plants.

8. They normally flower in the early spring or autumn.

Long-Day Plants:

1. They flower when exposed to day lengths longer than a certain critical maximum.

2. What matters more is the length of the light period.

3. Flowering is stimulated if dark period is interrupted by a flash of light.

4. Interruption by dark during long light period does not inhibit flowering.

5. Flowering is induced if plants are exposed to short light periods with still shorter dark periods (e.g. 8 hr. light followed by 4 hr. dark).

6. GA induces flowering in most of the long day plants.

7. They are also called short night plants.

8. They normally flower in the spring or early summer.

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