Sunflower direction - Knowledgebase Question

Tampa, Fl
Question by miguelcorona0
September 19, 2009
Why do sunflowers follow the sun direction?


Image
Answer from NGA
September 19, 2009

0

This phenomenon is known as positive phototropism (photo = light, tropos = turn), and although it is not fully understood yet, is commonly associated with the plant hormone auxin (indoleacetic acid).

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