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Effect of the soil temperature on the germination and growth of higher plants

Effect of the soil temperature on the germination and growth of higher plants

Item no.: P4060100

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Principle

Genetically determined growth processes in plants are primarily triggered or inhibited by special phytohormones. However, external factors such as light, temperature, water, oxygen and air humidity play a decisive role in these processes. With
regard to temperature, there are ranges within which this environmental factor reaches the most favourable value for germination and growth of a plant (preferential or optimum range, preferendum). The effect of different temperatures on the growth of cress (pepper grass, Lepidium sativum) is analysed in this experiment.

Benefits

  • Precise measurement possible with 12 different temperatures
  • Allows to set up a wide temperature range
  • The ring-shaped measurement setup allows an even distribution of all temperature points
  • Experimental setup can also be used for animal experiments

Tasks

  1. Investigate the effect of soil temperature on the germination of garden cress (Lepidium sativum)
  2. Determine the most favourable value for the germination and growth of cress using a temperature organ.

What you can learn about

  • Plant germination
  • Temperature optimum/ maximum/ minimum
  • Soil temperature
  • Temperature preferendum

 

Document     Filesize
p4060100e.pdf Experiment guide, English 205.56 KB

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