Design an experiment to demonstrate hydrotropism
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Design an experiment to demonstrate hydrotropism.
1.Answer: Following things are required for this experiment: Seeds of bean, a deep tray, sand, a porous flower pot
2.Procedure
3.Obseravation: After a week when seeds are taken out, it is observed that roots grow in the direction of the porous pot.
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1.Answer: Following things are required for this experiment: Seeds of bean, a deep tray, sand, a porous flower pot
2.Procedure
3.Obseravation: After a week when seeds are taken out, it is observed that roots grow in the direction of the porous pot.
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a) Take two glass troughs A and B and fill each one of them two – thirds with soil.
b) In troughs A plant a tiny seedling. In trough B plants a similar seedling and places a clay pot inside the soil.
c) Water the soil in trough A daily and uniformly. Do not water the soil in trough B but put some water in clay pot and leave both the trough for a few days.
d) Now, dig up the seedling carefully form both the troughs without damaging their roots. Observation – Roots of seedling in trough in A is straight. The root of seedling in trough B is bent to the right side i.e., toward the clay pot containing water.
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