A) Helianthus annuus
B) Euphorbia pulcherrima
C) Avena saliva
D) Beta vulgaris
Correct Answer: A
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, maize and cotton etc.
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