Q. Auxanometer is used to detect
Solution:
Growth in plants is measured with the help of an Arc Auxanometer or Pfeffer's Auxanometer. Other instruments that are helpful in measuring plant growth include the Horizontal Microscope and Crescograph.
Growth in plants is typically measured by the measurement of
1. increase in weight
2. increase in area
3. the volume in fresh weight
4. the volume of dry weight.
The auxanometer measures the increase in the length of the stem. When growth takes place, the stem increases in length. A fine thread is attached to the stem apex on one side and a dead-weight is attached on the other side of the thread. The thread passes over a pulley on which a pointer is attached.
Due to the increase in the stem height, the pulley moves and the pointer marks on a rotating drum (arc) or on a scale (simple auxanometer).
This is a sensitive instrument and is used in classrooms, research laboratories, or in the field. This is an effective way to express the growth of plants.
It can measure the rate of growth as well. In that case, the increase in length is divided by the time needed to show that change.
Growth in plants is typically measured by the measurement of
1. increase in weight
2. increase in area
3. the volume in fresh weight
4. the volume of dry weight.
The auxanometer measures the increase in the length of the stem. When growth takes place, the stem increases in length. A fine thread is attached to the stem apex on one side and a dead-weight is attached on the other side of the thread. The thread passes over a pulley on which a pointer is attached.
Due to the increase in the stem height, the pulley moves and the pointer marks on a rotating drum (arc) or on a scale (simple auxanometer).
This is a sensitive instrument and is used in classrooms, research laboratories, or in the field. This is an effective way to express the growth of plants.
It can measure the rate of growth as well. In that case, the increase in length is divided by the time needed to show that change.