Sunflower, Helianthus annuus, seedling showing gravitropic response a few days after being tipped over.

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Size: 5150px × 3328px
Photo credit: © Martin Shields / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: auxin, bend, bending, bent, curved, curving, development, geotropic, geotropism, gravitropic, gravitropism, growth, hormonal, hormone, negative, plant, potted, response, spilled, stem, tipped, tropism, turned, turning, upward