The effect of gravity and centrifugal force on plants

Principle and tasks

To measure the alignment of shoots and roots under the effect of centrifugal forces which are less than, equal to or greater than gravity. To raise sunflower seedlings in small beakers in a rotating drum. To set different centrifugal forces by changing the speed of rotation of the drum motor.

What you can learn about

• Positive geotropism of roots
• Negative geotropism of shoots
• Centrifugal force
• Rotational speed
• Statoliths

Literature for this article als follows

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