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state one importance of photoperiod in agriculture

Photoperiod determines the season in which a particular plant shall come to flower. For example, short day plants develop flowers in autumn-spring season while long day plants produce flowers in summer. Day neutral plants can be made to flower throughout the year since their flowering is dependent more on temperature and vegetative growth.

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Photoperiod are related to the duration of sunlight. Its importance is:

1. Growth of plants and flowering are dependent on the duration of photoperiod.

2. Plants manufacture their food in sunlight by the process of photosynthesis.

Hence longer duration of photoperiod is necessary....

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