Question

why the lower part of the girdled stem gets wilted after a few days​

Answer 1

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➺why the lower part of the girdled stem gets wilted after a few days?

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➺After girdling, the portion of plant below the girdled portion dies gradually due to lack of nutrients. This shows that phloem ( which is removed during girdling process ), was the vascular tissue responsible for translocation of prepared food in plants.

➺Girdling results in the removal of the phloem, and death occurs from the inability of the leaves to transport sugars (primarily sucrose) to the roots. ... Death occurs when the roots can no longer produce ATP and transport nutrients upwards through the xylem.

Answer 2

➺After girdling, the portion of plant below the girdled portion dies gradually due to lack of nutrients. This shows that phloem ( which is removed during girdling process ), was the vascular tissue responsible for translocation of prepared food in plants.

➺Girdling results in the removal of the phloem, and death occurs from the inability of the leaves to transport sugars (primarily sucrose) to the roots. ... Death occurs when the roots can no longer produce ATP and transport nutrients upwards through the xylem.