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Mowing grass lawn facilitates better maintenance because

1. wounding stimulates regeneration
2. removal of apical dominance and stimulation of intercalary meristem
3. removal of apical dominance
4. removal of apical dominance and promotion of lateral meristem

Correct answer: removal of apical dominance and stimulation of intercalary meristem

Solution

Mowing removes the shoot apex, which reduces apical dominance and allows lateral/basal growth to proceed. In grasses, intercalary meristems near the base of leaves and internodes keep dividing, so the lawn can regrow quickly after cutting.

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