During the photoperiodic induction,$........$ is translocated from leaves to shoot buds to induce flowering.

All given statements are correct with respect to photoperiodism,except:

Given below are two statements.
Statement $I$: If the long dark period is interrupted by a brief flash of light,short day plants will not flower.
Statement $II$: When the long dark period is interrupted by a brief flash of light,long day plants can flower.
In the light of above statements,choose the most appropriate answer from the options given below:

In which plant was the importance of day length for flowering first observed?

What will be the effect on phytochrome in a plant subjected to continuous red light?

One set of a plant was grown at $12$ hours day and $12$ hours night period cycles and it flowered,while in the other set,the night phase was interrupted by a flash of light and it did not produce flowers. Under which one of the following categories will you place this plant?