A. Heartwood is durable,dark,and central in p | vedclass

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(D) . Heartwood (duramen) is the central,dead,and dark-colored part of the secondary xylem,which is highly durable due to the deposition of tannins,re

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Only $C$ is incorrect

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(D) . Heartwood (duramen) is the central,dead,and dark-colored part of the secondary xylem,which is highly durable due to the deposition of tannins,resins,and oils. This statement is correct.$B$. Tyloses are outgrowths of xylem parenchyma cells into the lumen of vessels through pits,appearing as balloon-like structures. This statement is correct.$C$. Late wood (autumn wood) is formed during the autumn or winter season when cambium activity is less,resulting in narrower and darker vessels. Spring wood is formed during the spring season. Therefore,statement $C$ is incorrect.

$A$. Heartwood is durable,dark,and central in position.
$B$. Tyloses are balloon-like structures of xylem parenchyma in vessel lumen.
$C$. Late wood is formed during spring season.

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$A$. Heartwood is durable,dark,and central in position.$B$. Tyloses are balloon-like structures of xylem parenchyma in vessel lumen.$C$. Late wood is formed during spring season.