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Match column-I with column-II and choose the correct option.
A. Spring wood orI. Lighter in colour early wood
B. Autumn wood orII. High density late wood
..III. Low density
..IV. Darker in colour
..V. Larger number of xylem elements
..VI. Vessels with wider cavity
..VII. Lesser number of xylem elements
..VIII. Vessels with small cavity

Which of the following combination is correct ?

A. A II, IV, VII, VIII; B I, III, V, VI

B. A I, II, VII, VIII; B III, IV, V, VI

C. A I, III, V, VI; B II, IV, VII, VIII

D. A I, III, VII, VIII; B II, IV, V, VI

Correct Answer :

C. A I, III, V, VI; B II, IV, VII, VIII


Spring wood is the part of an annual ring of wood, characterized by large, thin-walled cells, formed during the first part of the growing season. It is lighter in colour with low density. It produces a larger number of xylem elements having vessels with wider cavities.
Autumn wood or late wood is the wood element formed during winter when cambial activity is more. It is darker in colour with high density.Wood elements are lesser in amount and have narrow lumen.

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