Question

describe with an experiment to show geotropism in plants.

Answer 1

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Geotropism is the tropism in which plants get attracted by the gravity.

Take two plants in different pots and place one of them vertically and other one about horizontally. After some days, it has been observed that the roots of both plants will be grown downwards i.e. towards the gravity. This shows geotropism.


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Answer 2

With the help of an activity demonstrate geotropism in plants.
Answer:
1. Soak some seeds of gram or moong in water for one day.

2. Pierce slightly big holes (2 mm diameter) at the bottom of the cup.

3. Fill it with 1cm thick layer of garden soil.

4. Sprinkle soaked seeds (moong/gram) over the soil. Water the seeds.

5. Put the cup on 2 pieces of wooden or stone slabs so that there is a litde gap between the top of the table and bottom of the cup. Cover the lower part of the set-up with black paper.

6. Water the seeds regularly with little water.

7. You will observe that the roots come out from the holes and grow towards the Earth showing positive geotropism.

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