Sunflower, Helianthus annuus, seedling showing gravitropic response a few days after being tipped over.
Size: 5146px × 3417px
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