Plants that show hypogeal germination grow relatively slow, especially in the first phase.
2.
This is known as hypogeal germination.
3.
After the faster first phase, the plant develops more slowly than plants that show hypogeal germination.
4.
The opposite kind, where the cotyledons remain non-photosynthetic, inside the seed shell, and below ground, is hypogeal germination.
5.
Plants that show hypogeal germination need relatively little in the way of external nutrients to grow, therefore they are more frequent on nutrient-poor soils.
6.
In botany, a seed is described as showing "'hypogeal germination "'when the cotyledons of the photosynthetic above the ground, is "'epigeal germination " '.
7.
However, the seeds of " A . bidwillii " are much larger, long and wide, than the seeds of " A . mirabilis " . " A . bidwillii " also exhibits cryptocotylar hypogeal germination ( the cotyledons are non-photosynthetic and remain in the shell on germination ), while there is evidence that indicates that " A . mirabilis " and other extinct members of the section " Bunya " exhibited epigeal germination ( the cotyledons are photosynthetic and expand above-ground ).
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