Question

describe endosperm developement in coconut?

Answer 1

The endopsperm arises after double fertilization. In coconut it remains suspended in nuclear form in the coconut milk in liquid stage, it is free nuclear divisons . After a while cellular form develops when cell walls are laid and gives rise to coconut meat.
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Answer 2

Endosperm Development In Coconut

Nuclear Type

• In nuclear type of endosperm development, primary endosperm nucleus (3n) undergoes free nuclear divisions.

• It tends to form numerous nuclei without any immediate wall formation.

• These nuclei are then arranged at the periphery.

• As a result, a large vacuole is formed at the centre of the embryo sac.

• Later the wall formation (cytokinesis) starts from periphery towards the centre,and a multicellular endosperm is formed.

• Eg: Wheat, Rice, Sunflower

• In coconut the wall formation remains incomplete.

• So there is an outer multicellular endosperm, solid endosperm and inner free nuclear liquid endosperm in the centre.