Distinguish between primary and secondary xylem. – InterviewSolution

1.

Distinguish between primary and secondary xylem.

Answer»

S. No.	Primary xylem	Secondary xylem
(i)	It is developed from Procambium.	It is developed from vascular cambium.
(ii)	There are no medullary or any rays in primary xylem.	There are rays in the secondary xylem.
(iii)	It is concerned with the growth of the primary plant body.	It is concerned with the secondary growth of the plant.
(iv)	It is associated with the formation of patches in-side the vascular bundle around the pith.	It constitutes the continuous cylinder around the pith.

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