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Watching seeds germinate

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Hi,

I have been watching some small seeds germinate on different media.

The root pops out first, from a split in one end of the seed, navigates down to the substrate, then inserts itself into the substrate if it can (e.g. when placed on sand or soil). Otherwise it grows along the surface horizontally (on filter paper). The vertical growing plant also puts out a horizontal set of very fine root hairs, at the ground surface, and then stands up, lifting the seed into the air with the first leaves still stuck inside the seed.

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