Distinct annual rings are formed in plants gr | vedclass

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(A) Annual rings are formed due to the differential activity of the vascular cambium in response to seasonal variations in climate.In temperate region

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Temperate regions

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(A) Annual rings are formed due to the differential activity of the vascular cambium in response to seasonal variations in climate.In temperate regions,the climate shows distinct seasonal changes (spring and autumn/winter).During spring,the cambium is very active and produces a large number of xylem elements with vessels having wide cavities,forming 'spring wood' or 'early wood'.In winter,the cambium is less active and forms fewer xylem elements with narrow vessels,forming 'autumn wood' or 'late wood'.These two kinds of woods that appear as alternate concentric rings constitute an annual ring. Thus,distinct annual rings are characteristic of plants in temperate regions.

Distinct annual rings are formed in plants growing in:

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