JIPMER2004BotanyPlant - Growth and Development

Which of the following is a day neutral plant?

Options

AHelianthus annuus
BEuphorbia pulcherrima
CAvena sativa
DBeta vulgaris

Correct answer

A. Helianthus annuus

Step-by-step solution

Day neutral plants do not need a specific photoperiod to produce flowers. They are also called intermediates or photoneutrals. Their photoperiod varies from a few hours to 24 hours of uninterrupted light e.g. tomato, cucumber, sunflower, Helianthus annuus, maize and cotton etc.

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