Question

Write short notes on Photomorphogenesis.

Answer 1

Photoperiodism:

The discovery of photoperiodism, i.e., the growth response to the length of light and dark periods by Garner and Allard, completely changed the concept of flower initiation. It was demonstrated by experiments that the length of the dark period rather than the light period is the critical factor in the photoperiod response.

As per the result of investigations, It became apparent that a majority of plants fell into one of three categories:

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