what do you understand by root presure experiment explain the procedure
Answers
Answer:
Root pressure is the force that drives water and nutrients into xylem upwards through plants. An experiment that can be used to demonstrate this force is by simply cutting a potted plant near the ground level and what is seen is water gushing out from the decapitated plant.
Explanation:
Aim : To demonstrate root pressure.
Material required : A potted plant, knife, rubber tube, glass tube, coloured water.
Procedure: Water the herbaceous plants and keep it for some time. Then cut off the upper part of the stem and attach a narrow glass tube on it. Fill the glass tube with coloured water. Mark the level of water and connect a manometer to the glass tube. Record your observations after some time.
Observations: The colour water rises in level and the manometer shows the root pressure by the increase in mercury level.
Conclusion: The water level increases as a result of root presure. The root pressure is of a small magnitude as shown by the manometer.