Secondary growth in the cortical region of a | vedclass

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(B) In dicot stems,secondary growth occurs in two regions: the stelar region and the cortical region.$1$. In the stelar region,secondary growth is cau

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Cork cambium

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(B) In dicot stems,secondary growth occurs in two regions: the stelar region and the cortical region.$1$. In the stelar region,secondary growth is caused by the activity of the vascular cambium.$2$. In the cortical region,secondary growth is caused by the activity of the cork cambium (also known as phellogen).$3$. The cork cambium cuts off cells on both sides; the cells cut off towards the outside become cork (phellem),and the cells cut off towards the inside become secondary cortex (phelloderm).$4$. Therefore,the activity of the cork cambium is responsible for secondary growth in the cortical region.

Secondary growth in the cortical region of a dicot stem occurs due to the activity of ..........

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