Four potted plants (I,II, III, and IV) of a short day plant, which has the crictical period of 14 hours, are taken and exposed to light for different time periods. The light periods given are listed in the table.
`|{:("Potted plant","Photoperiod"),(I,10hrs),(II,15hrs),(III,16hrs),(IV,20 hrs):}:|`
Which potted plant will show flowering after exposure to light?

Options

A. I
B. II
C. III
D. IV

Answer

A

Explanation

A short day plant (SDP) which has a critical period of 14 hours, will flower only if it is provided a continuous period of darkness of 14 hours, which has been given to the potted plants, more amounts of light periods are being given and thus the dark periods have been reduced to below 14 hours.