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Seeds, SEM

Seeds, SEM

C039/4714

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100.0 MB (12.4 MB compressed)

5912 x 5912 pixels

50.0 x 50.0 cm ⏐ 19.7 x 19.7 in (300dpi)

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Credit

STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY

Caption

Seeds. Composite coloured scanning electron micrograph (SEM) of a variety of common seeds. A seed is an embryonic plant enclosed in a protective outer covering. The embryo is developed from the zygote and the seed coat from the integuments of the ovule. Seeds are very diverse in size. Plants that produce smaller seeds can generate many more seeds per flower, while plants with larger seeds invest more resources into those seeds and normally produce fewer seeds. Small seeds are quicker to ripen and can be dispersed sooner. Many annual plants produce great quantities of smaller seeds to ensure a few will end in a favorable place for growth. Herbaceous perennials and woody plants often have larger seeds; they can produce seeds over many years, and larger seeds have more energy reserves for germination and seedling growth and produce larger, more established seedlings after germination.

Release details

Model release not required. Property release not required.

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