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Design an experiment to demonstrate hydr...

Design an experiment to demonstrate hydrotropism.

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Hydrotropism can be demonstrated with any germinating seedlings, which are allowed to grow on ground. The soil around the roots is separated by a polythene partition. The left side ia kept moist and the right side dry.
The ridicle at first grows in a downward direction and after sometime the roots bend towards the moist soil. This is due to movement of the germinating roots to water.
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