Question

Why the seed germination in castor is described as epigeal?

Answer 1

In botany, a seed is described as showing epigeal germination when the cotyledons of the germinating seed expand, throw off the seed shell and become photosynthetic above the ground.




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Answer 2

"In Epigeal Germination, the hypocotyl elongates rapidly and arches upwards pulling the cotyledons which move above the dirt. Bean, cotton, papaya, gourd, castor, and onion have germination of this kind.

The castor seed takes about seven days to germinate. The caruncle absorbs water, the seed coat blasts and radicle develops out, which moves downwards and forms the root.

The cotyledons absorb food from the endosperm and offer it to the growing developing life. The hypocotyl enlarges and becomes straight."